2021 Alerts
- March 17, 2021
- Plant Development
- Timely topic
- Emerald ash borer update
- A new shrub to consider: seven-son flower
- E-samples
- Japanese beetle as a house guest
- Pine tips littering the ground: squirrels at work
- Wetwood in elm
- Samples received/site visits
- Brookings County (fabric girdling spruce)
- Day County (possible pine wilt)
- Minnehaha County (pine wilt disease on Austrian Pine)
- Minnehaha County (spruce bud scale)
- March 3, 2021
- Plant Development
- Timely topic
- Its syrup time!
- Bare-root planting during a dry spring
- A Tree Grows in Nemo
- E-samples
- Attack of the bunnies
- Galls on pine branches
- Winterburn on arborvitae
- Samples Recieved/Site Visit
- Lawrence County (possible herbicide injury on pines)
- Lawrence County (Zimmerman pine moth)
- Meade County (codominant spruce falling)
- Stanley County (browning cedars)
- February 17, 2021
- Plant Development
- Timely topic
- The cold and Emerald Ash Borers
- The cold and our trees and shrubs
- it may be a dry spring: forecast for bare-root planting
- E-samples
- Splits appearing in trees
- Tree Identification
- Samples Recieved/Site Visit
- Davison County (Possible dothistroma needle bright)
- February 3, 2021
- Plant Development
- Timely topic
- An Update to the Winter Watering Question
- The Continuing, and Expanding, Problem with Pine Wilt Disease
- Emerald Ash Borer Update
- E-samples
- Blackhorned pine borer in boards
- Samples Recieved/Site Visit
- Custer County (engraver beetles)
- Davison County (tussock moth cocoon masses)
- Davison County (squirrels chewing hackberry)
- January 20, 2021
- Plant Development
- Timely topic
- Dam Bunnies
- Ash Trees are coming down - work continues in Sioux Falls
- E-samples
- Apple Buds Opening
- Trees falling after the windstorm in the Black Hills
- Samples Recieved/Site Visit
- Tripp County (poplar vagabond aphid)
- January 6, 2021
- Plant Development
- Timely topic
- Emerald Ash Borer Life Cycle
- The Importance of Life Cycle on Timing Treatment
- E-samples
- Honey Locust Thorns
- Squirrels Chewing Bark Off Elm Trees
- Samples Recieved/Site Visit
- Hamlin County (Pine Pitch and Spruce Bud Scale)
- Pennington County (Lirula Needle Blight
2020 Alerts
- December 2, 2020
- Plant Development
- Timely topic
- Frost Cracks: wrap or not wrap?
- E-samples
- Peach Tree with Resin
- Samples Recieved/Site Visit
- Brown County (pine tortoise scale on scotch pine)
- Moody County (Ash Borers - but not emerald ash borer)
- Pennington County (Engraver Beetle are Killing Trees)
- November 18, 2020
- Plant Development
- Timely topic
- Watering Trees and shrubs during this time of year
- Emerald Ash Borer development
- E-samples
- Ash Bark Beetles
- Western Conifer Seed Bug
- Samples Recieved/Site Visit
- Brooking County (silky nest on Christmas tree)
- Clay County (bubbles oozing out of a tree base)
- October 7, 2020
- Plant Development
- Timely topic
- Emerald ash borer update
- Emerald ash borer is NOT in Kimball
- The forest is dripping!
- E-samples
- Apple with a split trunk
- Ash seed weevils
- Horntails (no, not the murder hornets)
- Poplar blackmine leafminer
- September 30, 2020
- Plant Development
- Timely topic
- Emerald ash borer update
- Ash removals continue
- A clarification on the Sept 9th cranberrybush viburnum article
- E-samples
- Silver maple or white poplar
- White dots on an aspen: poplar scale
- What is this caterpillar? A question from Pennsylvania
- September 23, 2020
- Plant Development
- Timely topic
- Emerald ash borer update
- The infestation continues to expand in Sioux Falls and Canton
- Do not move firewood!
- E-samples
- Borers in ash
- English walnut in Sioux Falls
- Mulberry: the most frequently leaf submitted for identification
- Squirrels and pines
- September 16, 2020
- Plant Development
- Timely topic
- Emerald ash borer updates
- Not an emerald ash borer
- Fall foliage color change is beginning
- Yellow needles on pines and spruce
- E-samples
- Locust borers are appearing
- Oak blister what?
- Tar spot on silver maple
- Woolly apple aphids are out on apples and cotoneasters
- September 9, 2020
- Plant Development
- Timely topic
- Emerald ash borer updates
- Spruce spider mites are becoming more active
- The cranberry native to South Dakota
- E-samples
- Buckeyes, not chestnuts, are falling from trees
- Fall color on arborvitae
- Willow scab is appearing across the state
- September 2, 2020
- Plant Development
- Timely Topic
- Emerald ash borer updates
- Larval development in trees/Adults are done flying
- City restrictions and federal/state quarantines are not the same
- Fall fungi: are they food?
- Aphid populations are building up on many plants
- E-samples
- Common buckthorn - do not eat!
- Marssonina leaf spot on cottonwood
- Marssonina leaf spot and oystershell scale on aspen
- August 26, 2020
- Plant Development
- Timely topic
- Emerald ash borer updates
- Larval development in trees/Adults finished flying
- Bronze birch borer and Asian birch trees
- Picking apples
- Trees are beginning to drop their leaves
- E-samples
- Grasshoppers and junipers
- Oak lace bugs
- Oak skeletonizer
- August 19, 2020
- Plant Development
- Timely topic
- Emerald ash borer updates
- Development in trees
- Bacterial blight is also in Amur maple
- Douglas-fir: another possibility for windbreaks
- Meyer spruce
- E-samples
- Basswood leafminer is back
- Horntails in maples
- Walnut anthracnose
- August 12, 2020
- Plant Development
- Timely topic
- Emerald ash borer updates
- Development in trees
- Bacterial blight in tree lilacs
- Dutch elm disease update
- Stem Girdling Roots (SGR)
- E-samples
- Cottonwood petiole gall
- Elm leaf beetles
- Eriophyid gall mites on basswood
- Fall webworm
- Monster vines in trees
- August 5, 2020
- Plant development
- Timely topic
- Emerald ash borer updates
- Development in trees
- Other borers in ash trees: ash bark beetles
- Verticillium wilt
- What's up with these holes in oak leaves?
- Don't remove tree tubes too soon
- E-samples
- Bacterial blight on lilac
- Fall webworm
- Lady beetle larvae to the rescue!
- Stinkhorn mushrooms
- Tar spot on maple
- July 29, 2020
- Plant development
- Timely topic
- Emerald ash borer updates
- Development in trees
- Other borers in ash trees
- Verticillium wilt
- Cicada killers on the loose
- E-samples
- Cottony ash psyllid
- Pouchgall in boxelder
- Walnut caterpillar
- July 22, 2020
- Plant development
- Timely topic
- Emerald ash borer updates
- Larvae appearing in trees
- More EAB imposters
- Dutch elm disease, the forgotten problem
- Fruittree leaf roller in spirea
- E-samples
- Earwigs in cottonwood
- Grape phylloxera
- Hackberry decline
- Round bullet gall
- July 15, 2020
- Plant Development
- Timely Topic
- Emerald ash borer updates
- Emerald ash borer NOT found in Emery
- Which direction do emerald ash borer spread?
- More EAB imposters
- Dog-days of summer
- Oak galls and woodpeckers
- Beetles and pines: current conditions in the Black Hills
- E-samples
- Cedar-quince rust on cockspur hawthorn
- Chlorosis (yellowing maple leaves)
- Dog vomit fungus
- Root weevils on lilacs
- July 8, 2020
- Plant Development
- Treatments to begin now
- Timely topic
- Emerald ash borer updates
- Emerald ash borer found in Worthing
- Heavily infested trees need to be removed this Fall
- Update on cedar discoloration and dieback in the state
- E-samples
- Birch leaf miner
- EAB look-a-like
- Mulberry fruit
- Powdery mildew on lilac
- Spittlebugs on junipers
- July 1, 2020
- Plant Development
- Treatments to begin soon
- Timely topic
- Emerald ash borer update
- Drought injury beginning to appear in western South Dakota
- Bark beetles in the Black Hills
- Japanese beetles are feeding on leaves now
- E-samples
- Ash rust
- Cedar-quince rust
- Cottony maple scale
- Silver maples and wasps - a tale of tree decline
- June 24, 2020
- Plant Development
- Timely Topic
- Emerald ash borer update
- Why are the junipers turning brown?
- Frost injury on blue spruce
- Chlorosis appearing on trees
- E-samples
- Birch leafminer
- EAB look-a-likes
- Plum pockets
- Spindle galls
- June 17, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Emerald ash borer update
- Ash decline in the Black Hills: oystershell scale
- Another pest to worry about: spotted lanternfly
- E-samples
- Ash rust
- Blister beetles
- Maple bladder gall mite
- June 10, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Thinning canopies do not always mean emerald ash borer
- Emerald ash borer update
- Twig blight on junipers
- E-samples
- Ash rust
- Monster wasp - Elm sawfly
- Leaf blisters on cherry
- June 3, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Why is my broadleaf tree "dying"?
- Frost or herbicide injury on spruce
- Emerald ash borer update
- E-samples
- Crown rust on buckthorn
- Variegated maple reverting
- Winter kill on maple
- May 27, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Why are all the evergreens "dying"?
- Ash anthracnose is beginning to show up
- Hackberry leaves are falling
- Treatments for the ash-lilac borer
- These are not morels
- E-samples
- Black knot
- Cedar-apple rust - telial horns are forming
- Eastern tent caterpillars
- Lichens
- Sapsucker injury to ponderosa pine
- May 20, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Now is the time to treat for emerald ash borer
- Woodpecker damage on bur oaks, a possible treatment
- E-samples
- Alcoholic flux
- Cedar galls
- Forest tent caterpillars
- Gummosis in stone fruits
- Witches'-broom in ponderosa pine
- May 13, 2020
- Plant Development
- Treatments to do now
- Timely topic
- What will happen to the fruit tree blossoms from the cold?
- There is more attacking ash than emerald ash borer
- Update on emerald ash borer in Canton, SD
- E-samples
- Cytsopora canker on Black Hills spruce
- Tent caterpillars
- May 6, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Confirmation of emerald ash borer in Canton SD
- Digital workshop on emerald ash borer this Thursday 7pm (CDT)
- E-samples
- Cup fungi on logs
- Lecanium scales on ash
- April 29, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Be careful pruning, for your sake and the tree's!
- Morel season is about to begin
- E-samples
- Turpentine beetles in eastern South Dakota
- Witches' Broom in boxelder
- April 22, 2020
- Plant Development
- Treatments to do now
- Timely topic
- Sioux Falls emerald ash borer update
- Ash treatment reminder
- Ash pruning reminder
- E-samples
- Browning arborvitae
- April 15, 2020
- Plant Development
- Treatments to do now
- Timely topic
- The difference in symptoms between COVID-19 and tree pollen
- More on winter-burn and conifers
- E-samples
- Cars as pests
- Willow scale
- April 8, 2020
- Plant Development
- Treatments to do now
- Timely topic
- A toilet paper substitute?
- Conifers and winter-burn
- Herbicide carry-over
- Shrub pruning
- E-samples
- Albino squirrel?
- Ash decay fungi
- Black knot in chokecherry
- D-shaped holes are not always emerald ash borer
- Woodpecker damage on oak
- April 1, 2020
- Plant Development
- Treatments to do now
- Timely topic
- What is an ash replacement for northeast-central SD?
- E-samples
- Sapsucker damage on pines
- March 25, 2020
- Plant Development
- Timely topic
- Maple tapping time has arrived
- Ash tree removals continue in Sioux Falls
- E-samples
- Ash bark beetles in declining ash
- Squirrels removing bark from oak trees
- March 11, 2020
- Plant development
- Timely Topic
- Maples bleeding after pruning
- E-samples
- Dying spruces, possible soil issues
- Plant development
- Time topic
- Emerald ash borer winter survey
- E-samples
- A Polyphemus moth as a house guest
- February 12, 2020
- Plant Development
- Timely topic
- Snow loading on branches update
- Emerald ash borer and the cold
- E-samples
- Pine bark adelgid
- February 5, 2020
- Plant development
- Timely topic
- Deer, rabbit and vole damage
- E-samples
- A honeylocust and cottonwood - young love but can it last?
- January 15, 2020
- Plant Development
- Timely topic
- Rabbit damage
- E-samples
- Squirrels and pine tips
- January 1, 2020
- Plant Development
- Timely topic
- Squirrels at work
- E-samples
- Pine needle scale
2019 Alerts
- December 18, 2019
- Plant Development
- Timely topic
- What to do with a live Christmas tree?
- Should we be planting Freedom honeysuckle?
- E-samples
- What to do about branches bent by snow?
- December 5, 2019
- Plant Development
- Timely topic
- Darn honeylocust pods!
- E-samples
- Pines turning color
- November 20, 2019
- Plant Development
- Timely topic
- Deicing salts and trees
- Elongate hemlock scales on wreaths
- E-samples
- Junipers turning colors
- November 6, 2019
- Plant Development
- Timely topic
- Choosing the perfect Christmas tree
- E-samples
- Banded ash borer in firewood
- Red-headed woodpecker hole in rotted stem
- October 23, 2019
- Plant Development
- Timely topic
- A few conifers to try
- E-samples
- Chlorotic oak
- Diamond willow
- October 9, 2019
- Plant Development (number of falling leaves in a tree)
- Timely topic
- Buying firewood
- Raining worms from ash trees
- E-samples
- Fly speck on apples
- Pine needles turning color
- October 2, 2019
- Plant Development (lilacs in blooms)
- Timely topic
- Fall color on arborvitae
- The first snow - what to do
- Lingering ash - hope or just denial?
- E-samples
- Woolly apple aphid
- September 25, 2019
- Plant development
- Timely topic
- Fall color on deciduous trees
- Needle shedding on evergreens
- Uprooted trees in Sioux Falls
- Staking young trees left leaning after the storm
- Carry-over concerns with clopyralid herbicide
- E-samples
- Cottonwood shedding leaves and twigs
- Dogwood sawfly
- Eastern tiger swallowtail caterpillar
- Oak lace bug
- September 18, 2019
- Plant development
- Timely topic
- Emerald ash borer update
- Ash firewood sales
- You do not need to kill cicadas in your trees
- Buying hedge-apples for insect and spider control
- E-samples
- Common buckthorn fruit
- Praying mantis
- September 11, 2019
- Plant Development
- Timely topic
- The Sioux Falls tornadoes - lessons learned
- Siberian elm - what to do when it's a weed
- E-samples
- Marssonina leaf blight on cottonwood
- Spruce gall midge
- September 4, 2019
- Plant development
- Timely topic
- Asian longhorned beetle - not
- Collecting chestnuts
- Squirrel damage on hackberry
- E-samples
- Chicken-of-the-woods fungus
- Dogwood sawfly
- Fruittree leafroller on birchleaf spirea
- Imported currantworm on alpine currant
- Pear sawfly on pear
- Woolly aphids on hawthorn
- August 28, 2019
- Plant development
- Timely topic
- What's up with Paulownia?
- Locust borer and Purple Robe locust
- BOB is back
- Tree tubes and leaning tree
- E-samples
- Wetwood (slime flux) on Siberian elm
- Walnut anthracnose
- August 21, 2019
- Plant development
- Timely topic
- Voles in cedar belts
- Bark beetles in the Black Hills
- Manganese deficiency in Colorado spruce
- E-samples
- Beware the hair: io moth caterpillars
- Second generation of pear slugs out
- Crown gall on burning bush
- August 14, 2019
- Plant development
- Timely topic
- Another velvet longhorned beetle collected in SD
- Stinkhorn mushrooms
- Emerald ash borer update
- Wild cucumber vine
- E-samples
- Not emerald ash borer
- Another "can I eat this mushroom?"
- Lichens on bark
- August 7, 2019
- Plant development
- Timely topic
- Bark beetles in East River Pines
- E-samples
- Ash flower gall
- Tatarian honeysuckle fruit
- Woolly oak gall
- July 31, 2019
- Plant development
- Timely topic
- A reminder that we are a common tree pest
- A new tree to try: what about hickory?
- E-samples
- Fall webworm
- Lace bugs on oaks
- Tar spot on maple
- July 25, 2019
- Plant development
- Timely topic
- Ash substitute - the Kentucky coffeetree
- Japanese beetle and roses
- Spotted wing drosophila update
- Treating chlorosis on oaks
- E-samples
- Cedar-hawthorn rust
- Golden buprestid - emerald ash borer look-a-like
- Pear sawfly (slug)
- Picnic beetles in raspberries
- July 17, 2019
- Plant development
- Timely topic
- Japanese beetle adults are out feeding on foliage
- Spotted wing drosophila is infesting fruit
- A sad tale of planting too deep
- E-samples
- Sappy insects
- Herbicide injury on trees and shrubs
- July 10, 2019
- Plant Development
- Timely topic
- Wet soils and trees
- Emerald ash borer update - the woodpeckers strike back
- E-samples
- Cicadas
- Dog vomit fungus
- Pear slug
- July 3, 2019
- Plant Development
- Timely topic
- The continuing problem with apple scab
- Emerald ash borer update
- Why waiting too long to treat for EAB is not a good idea
- Dutch elm disease is beginning to appear across the state
- E-samples
- Anthracnose on sycamore
- Ash leaf curl aphid
- Linden leaf gall mite
- June 26, 2019
- Plant Development
- Timely topic
- "Winter" injury on trees
- Tree tubes and winter hardiness
- How to tell if the hole is from the emerald ash borer?
- E-samples
- Cedar-hawthorn rust
- Hawthorn leaf blight
- Redheaded ash borer
- Spindle galls on cherry
- June 19, 2019
- Plant Development
- Treatments to do in another week
- Apple maggot
- Timely Topic
- Where in the state should ash trees be treated for EAB?
- How do you know the tree is being treated correctly?
- Fireblight is showing up across the state.
- E-samples
- Aphids in trees
- Basswood "leaf" fall
- Forest tent caterpillars
- Herbicide injury in trees
- Inky cap mushrooms
- June beetles
- Samples received / site visits
- Davison County (possible herbicide exposure on hackberry)
- Faulk County (possible herbicide exposure on cherry and hackberry)
- Minnehaha County (pine wood nematode)
- Minnehaha County (emerald ash borer NOT)
- Minnehaha County (oak leaf roller)
- June 12, 2019
- Plant Development
- Treatments to do in another week
- Spruce bud scale
- Spruce needleminer
- Timely topic
- Treating for emerald ash borer
- Yellowing (chlorotic) leaves
- E-samples
- Blister beetles
- Oak leaf blisters
- Pine engraver beetles
- June 5, 2019
- Plant Development
- Treatments to do now
- Treatments you missed
- Timely topic
- What happens once emerald ash borer kills all the trees in a town?
- Fringetree, the other host for emerald ash borer
- How many years do you have to treat for emerald ash borer?
- Pine pollen
- E-samples
- Ash rust
- Crown rust on buckthorn
- Maple bladder galls
- Smoketree and ash dieback across the state
- Venturia leaf and shoot blight
- Woodpeckers and oaks, a bad combination
- May 29, 2019
- Plant Development
- Treatments to do very soon
- Timely topic
- Emerald ash borers are beginning to emerge
- Why are the leaves falling from ash trees?
- Precautions with morels
- Tent caterpillars are on the move
- E-samples
- Ash bark beetle identification
- Attack of the checkered beetles
- "Galls" on arborvitae
- May 22, 2019
- Plant Development
- Treatments to do soon
- Timely topic
- Cold weather and drooping leaves
- Can I eat these mushrooms?
- E-samples
- Maple bladder gall mites
- May 15, 2019
- Plant Development
- Treatments to do soon
- Timely topic
- Satellite emerald ash borer infestation in Sioux Falls
- Guilty by association, other borers found in ash
- E-samples
- Lilac/ash borer in lilac
- Decay fungus in ash
- May 8, 2019
- Plant Development
- Treatments to do now
- Timely topic
- One-year anniversary of emerald ash borer in Sioux Falls
- The problem with pollen
- E-samples
- Mildew on ninebark
- May 1, 2019
- Plant Development
- Treatements to do now
- Timely topic
- Planting bare-root trees
- E-samples
- Oak gall and woodpeckers
- Sapsuckers and pines
- April 24, 2019
- Plant Development
- Treatments to do now
- Timely topic
- Emerald ash borer treatments
- E-samples
- Black knot
- Hail damage on Japanese tree lilac
- April 17, 2019
- Plant Development
- Treatments to do now
- Timely topic
- Emerald ash borer workshops
- City meeting on protocol for treating ash in Sioux Falls
- Herbicide carryover and tree planting
- E-samples
- A tree snail
- April 10, 2019
- Plant Development
- Treatments to do now
- Timely topic
- Possible ice and snow damage, what to do if the storm hits?
- Ashe tree removal continues
- Emerald ash borer workshops
- City meeting on protocol for treating ash in Sioux Falls
- Pruning flower shrubs
- E-samples
- Black knot
- April 3, 2019
- Plant Development
- Treatments to do now
- Timely topic
- Ash tree removal
- E-samples
- Blister beetle from afar
- Rabbit damage
- March 27, 2019
- Plant Development
- Timely topic
- Flooding and trees
- When to start spraying apple trees
- E-samples
- Sick Spearfish Spruce
- March 20, 2019
- Plant Development
- Timely topic
- Sap on tap, maple sap is flowing
- Evergreens turning yellow
- E-samples
- Confused flour beetle in basement
- March 6, 2019
- Plant Development
- Timely topic
- Emerald ash borer over-wintering mortality
- What is a substitute for lilac in a windbreak?
- E-samples
- Possible emerald ash borer infested tree
- February 20, 2019
- Plant Development
- Timely topic
- Pine wilt disease
- E-samples
- Possible pine wilt in Yankton
- Carpenterworms
- February 6, 2019
- Plant Development
- Timely topic
- Emerald ash borer: stay with the program
- E-samples
- Discolored ponderosa pines in Spearfish - update
- January 23, 2019
- Plant Development
- Timely topic
- Is it cold enough to kill emerald ash borer?
- E-samples
- Discolored ponderosa pines in Spearfish
- Squirrels chewing on hackberry branches
- January 10, 2019
- Plant Development
- Timely Topic
- Update on the elongate hemlock scale
- E-samples
- Possible diploida tip blight on ponderosa pine
2018 Alerts
- December 26, 2018
- Plant Development
- Timely topic
- The insect that stole Christmas - the elongate hemlock scale
- E-samples
- Pine bark adelgid on limber pine
- December 12, 2018
- Plant Development
- Timely topic
- Buying firewood
- Do not move ash firewood from the quarantine area!
- E-samples
- Pines turning yellow
- Fire blight in mountainash
- November 29, 2018
- Plant Development
- Timely topic
- Ice melt product and plant injury
- How fast can emerald ash borers multiple?
- E-samples
- Herbicide Injury
- Browning bishop's goutweed
- November 14, 2018
- Plant Development
- Timely topic
- Real or Plastic: selecting a Christmas tree
- E-samples
- Bronze birch borer
- Banded or redheaded ash borer in wood pile
- Junipers (cedars) turning brown
- October 31, 2018
- Plant Development
- Timely topic
- Claims of EAB in communities surrounding Sioux Falls
- What does an EAB infested tree look like in winter?
- E-samples
- Lilac/ash borer
- October 17, 2018
- Plant Development
- Timely Topic
- Boxelders and Seasonal Pasture Myopathy in horses
- Bronze birch borer and problems with Asian birches
- E-samples
- Yellowing pine needles
- October 3, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- E-samples
- Wetwood
- Zimmerman pine moth
- September 26, 2018
- Plant Development
- Timely topic
- Pine wilt disease update
- Roasting chestnuts - NOT!
- E-samples
- Bark change on white poplar
- Banded or redheaded ash borer
- More longhorned beetles
- Poplar vagabond aphid
- Russeting on apples
- September 19, 2018
- Plant Development
- Timely Topic
- Emerald ash borer
- The sister waves of the urban forest
- How quickly will emerald ash borer spread across the state?
- E-samples
- Butternut woollyworm
- Codling Moth
- Pear slug
- Puffballs
- September 12, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- Starting walnut from seed
- Watering conifer seedlings
- E-samples
- Cotoneaster leaf crumpler
- Oystershell scale
- Pine needle scale
- Willow scab
- September 5, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- Planting for the post-EAB community forest
- E-samples
- Ash plant bugs
- Sulphur shelf fungus
- August 29, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- Bacterial blight on lilac
- E-samples
- Boxelder bugs
- Flatheaded appletree borer
- August 22, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- The attack of the monster vine!
- E-samples
- Birch sawfly
- Dwarf Alberta spruce gone wild
- Lace bugs on oak
- Stinkhorns
- August 15, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- Velvet longhorned beetle
- Spotted lanternfly
- E-samples
- Ash flower galls
- Cedar-apple rust
- Cedar-hawthorn rust
- Maple bladder gall
- Woolly oak gall
- August 8, 2018
- Plant Development
- Timely Topic
- Emerald ash borer update
- Parasitoid wasp releases
- Dutch elm disease and emerald ash borer
- Busted belt
- E-samples
- Bacterial blight in lilac
- Coral spot Nectria canker on honeylocust
- Ctoonwood leaf beetle
- Marssonina leaf spot on aspen
- Tar spot
- August 1, 2018
- Plant Development
- Timely Topic
- Emerald ash borer update
- A few surprising trees
- Cicadas are buzzing about
- E-samples
- Pear sawfly
- More worms in the willows
- July 25, 2018
- Plant Development
- Timely Topic
- Emerald ash borer update
- Emerald ash borer is not the only ash pest
- Hail damage
- E-samples
- Fall webworm
- Worms in the willows
- Yellow spotted jewel beetle (not EAB)
- July 18, 2018
- Plant Development
- Timely Topic
- Dutch elm disease
- Emerald ash borer update
- E-samples
- Fruittree leaf roller on birchleaf spirea
- Powdery mildew
- Guignardia blotch on buckeye
- July 11, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- Spotted wing drosophila are infesting small fruits
- E-samples
- Nanking cherries
- Hackberry nipple gall
- Herbicide drift on hackberry
- July 4, 2018
- Plant Development
- Timely topic
- Aphids, aphids and more aphids.
- Emerald ash borer update
- E-samples
- Dogwood sawfly
- Velvet erineum gall
- Rust on buckthorn
- June 27, 2018
- Plant Development
- Treatments to do now
- Apple maggot
- Timely topic
- Bare-root honeylocust not leafing out
- Emerald ash borer update
- E-samples
- Chokecherry midge
- Herbicide drift injury
- Pouch fungus
- June 20, 2018
- Plant Development
- Treatments to begin now
- Spruce bud scale
- Spruce needleminer
- Timely topic
- Emerald ash borer update - the look-a-likes
- E-samples
- Ash leaf curl aphid
- Lecanium scale
- Willow scab
- Winter-burn/winter-kill
- June 13, 2018
- Plant development
- Treatments to do now
- Dothistroma needle blight
- Treatments to begin in another week
- Spruce bud scale
- Spruce needleminer
- Timely topics
- Emerald ash borer update
- Chlorosis
- E-samples
- Boxelder pouchgall
- Cottony ash psyllid
- Cottony maple scale
- Rose stem girdler, an emerald ash borer look-a-like
- June 6, 2018
- Plant Development
- Treatments to do now
- Dothistroma needle blight
- Timely topic
- Emerald ash borer update
- Herbicide injury
- Tent caterpillars near the end of their feeding
- E-samples
- Aphids everywhere!
- Taphrina disease on chokecherry
- Dying black ash
- May 30, 2018
- Plant Development
- Treatments to begin now
- Bronze birch borer
- Cedar-apple rust
- Cottonwood and poplar borer
- Dothistroma needle blight
- Phompsis twig blight
- Shearing pines
- Timely topic
- Spruce and drought
- Emerald ash borer update
- E-samples
- Hackberry dropping leaves
- Herbicide drift
- Linden dieback in tree tubes
- Tent caterpillars
- May 23, 2018
- Plant Development
- Treatments to begin now
- Clearwing ash borer
- Bronze brich borer
- Cedar-apple rust
- Codling moth
- Diplodia tip blight
- Pine needle scale
- Spruce needlecast diseases
- Treatments to beign soon
- Cottonwood and poplar borer
- Shearing pines
- Timely topic
- Sex and trees
- Emerald ash borer update
- E-samples
- Maple bladder galls
- Oystershell scale
- Sapsucker damage on walnut
- May 16, 2018
- Plant Development
- Treatments to begin now
- Spruce spider mites
- Zimmerman pine moth
- Treatments to begin soon
- Clearwing ash borer
- Diplodia tip blight
- Spruce needlecast disease
- Timely topic
- Emerald ash borer update
- Emerald ash borer look-a-likes
- Be careful when mushroom hunting
- E-samples
- Ash anthracnose
- Willow girdled by string
- Yew identification
- May 3, 2018
- Plant Development
- Timely topic
- Emerald ash borer update
- E-samples
- Squirrel or porcupine damage
- Sycamore anthracnose
- April 25, 2018
- Plant Development
- Timely Topic
- E-samples
- Black knot
- Possible velvet longhorned beetle
-
Winter desiccation injury
- April 18, 2018
- Plant Development
- Timely Topic
- Tree injection workshop May 10 Sioux Falls
- Boom mounted grapple saw demonstration April 26 Brookings
- E-samples
- Bronze poplar borer
- Hail damage on plum
- April 11, 2018
- Plant Development
- Timely Topic
- Treating apple trees for apple scab and cedar apple rust
- Tree injection workshop
- Altec knuckle boom mounted grapple saw demonstration
- E-samples
- Cedartree borer
- April 4, 2018
- Plant Development
- Timely Topic
- Mountain pine beetle and pine engraver beetle
- Pine shoot blight in the Black Hills
- E-samples
- Resin soaked bases of pine needles - ?
- March 28, 2018
- Plant Development
- Timely topic
- Snow damage and evergreens
- E-samples
- Wood borer in a table
- Golden buprestid
- March 21, 2018
- Plant Development
- Timely Topic
- Herbicide carryover: caution when planting new windbreaks
- E-samples
- Black knot
- Black rot
- March 14, 2018
- Plant Development
- Timely Topic
- Maple water, a new trend
- E-samples
- Clearwing ash borer
- Squirrel samage on elms
- February 28, 2018
- Plant Development
- Timely topic
- Pruning young trees: creating a leader
- E-samples
- Banded ash borer
- Hackberry nipple gall
- February 14, 2018
- Plant Development
- Timely Topic
- Emerald ash borer update from Winnipeg
- What to plant
- E-samples
- Bunny damage
- January 31, 2018
- Plant Development
- Timely Topic
- Common ash pests
- A thorny honeylocust
- E-samples
- Zimmerman pine borer
- January 17, 2018
- Plant Development
- Timeyl Topic
- Do anti-transpirants prevent winter burn on evergreens
- Emerald ash borer concerns with firewood
- E-samples
- White pine needles turning brown
- D-shaped emergent holes are not always from emerald ash borer
- Deer rub damage
- January 3, 2018
- Timely topic
- Barking up the right tree!
- The first sign of spring
- E-samples
- Squirrels chewing bark
- Witches broom on hackberry
2017 Alerts
- December 28, 2017
- Timely topic
- Emerald ash borer confirmed in Winnipeg
- The continuing drought in west-central South Dakota
- The impact of cold weather next week on trees
- E-samples
- Ash flower galls
- Dying maple tree
- December 13, 2017
- Timely Topic
- Why evergreens are turning color now
- Roasting chestnuts
- Buying firewood
- E-samples
- Pine aphids in Christmas trees
- Willow cone midge
- November 29, 2017
- Plant development and winter watering
- Timely topics
- Frost cracks and canker
- Deer browsing on trees
- Deer rubbing trees
- E-samples
- Redheaded ash borer
- November 15, 2017
- Plant Development
- Emerald ash borer update
- Timely topic
- Selecting a Christmas tree
- E-samples
- Ash borers
- White poplar identification
- Pear identification
- November 1, 2017
- Plant Development
- Emerald ash borer update
- Timely topic
- Use of deicing products
- E-Samples
- Ballooning spiders
- Barklice
- Diplodia tip blight
- October 18, 2017
- Plant Development
- Emerald ash borer update
- Timely topic
- Autumn color change on conifers
- E-samples
- Armillaria mushrooms
- Asian pear
- Elytroderma needle cast
- Frost damage on spruce
- October 4, 2017
- Plant Development
- Emerald ash borer update
- It's too early to begin treating ash for the emerald ash borer
- Timely Topic
- It's time for the Asian lady beetles to appear around the house
- Hail damage to conifers
- Can ponderosa pine grow in alkaline soils?
- E-samples
- Ash rust
- Dock
- Pear slugs
- Wetwood on cottonwood
- September 20, 2017
- Plant Development
- Emerald ash borer update
- It's too early to begin treating ash for emerald ash borer
- Timely topic
- Nuts! No you cannot eat buckeyes
- Butternuts
- E-samples
- Ash flower gall
- Dogwood sawfly
- Linden leaf blotch
- Maple bladder gall
- September 13, 2017
- Plant Development
- Emerald ash borer update
- It's too early to begin treating ash for the emerald ash borer
- Timely Topic
- Watering trees this autumn
- Fungus among us
- E-samples
- Marssonina leaf spot
- Septoria leaf spot
- September 6, 2017
- Plant Development
- Emerald ash borere update
- New emerald ash borer confirmation in southern Minnesota
- Timely Topic
- Locust borers appearing
- Conifers are beginning their fall color season
- It's time to harvest hazelnuts!
- E-samples
- Tar spot on maple
- Crown call on burning bush
- August 30, 2017
- Plant development
- Emerald ash borer update
- New emerald ash borer confirmation in southern Minnesota
- Timely topic
- How to pick apples
- How to tell chokecherries from buckthorns
- E-samples
- Basswood fruit
- Honeylocust spider mite
- Pine tip moth
- August 23, 2017
- Plant Development
- Emerald ash borer update
- New emerald ash borer confirmation in southern Minnesota
- Timely Topics
- How to start walnuts from seed
- Dicamba injury to trees
- E-samples
- Cicada killers
- Willow scab
- August 16, 2017
- Plant Development
- Emerald ash borer update
- "Pruning" as a pest
- Timely topics
- Update on dying seedlings
- Herbicide carry-over and new tree planting
- E-samples
- Apple scab
- Massonia leaf blight
- Powdery mildew
- Tar spot
- Willow cone
- August 9, 2017
- Plant development
- Emerald ash borer update
- Timely topic
- Cicadas are calling!
- Cicada killers are out as well
- Japanese beetle update
- E-samples
- Woolly apple aphid on cotoneaster
- Cotoneaster leaf spot
- Yellow linden leaves
- August 2, 2017
- Plant Development
- Emerald ash borer update
- Timely topic
- Rain finally, but is it too late?
- Why are leaves turning color?
- E-samples
- Cedar-quince rust
- Fall webworm
- July 26, 2017
- Plant Development
- Emerald ash borer update
- Emerald ash borer look-a-likes reported this past week
- Timely Topic
- The continuing drought
- Can split trees be saved?
- Fruit to avoid picking
- E-samples
- Cynipid wasp oak galls
- Rose chafer damage
- Elderberry identification
- July 19, 2017
- Plant Development
- Emerald ash borer update
- Timley topic
- The symptoms of Dutch elm disease are beginning to appear
- Weeping trees: the problem with honeydew
- E-samples
- Ash seed weevils
- Cicadas
- Cottonnwwod petiole gall
- Root weevils
- July 12, 2017
- Plant Development
- Emerald ash borer update
- Emerald ash borer look-a-likes reported this past week
- Timely topic
- The drought and trees
- E-samples
- Cedar-apple and related rust diseases
- Herbicide drift injury
- Chlorosis on trees
- Dog vomit fungus (mold)
- July 5, 2017
- Plant development
- Emerald ash borer update
- Timely topic
- BOB is back!
- Cedar and other conifer new planting update
- E-samples
- Ash leaf curl aphid
- Bronze birch borer
- Spur blight
- Marssonina blight on aspen
- Spiny elm caterpillar
- Tree-of-heaven
- Woolly elm aphid
- June 28, 2017
- Plant development
- Emerald ash borer update
- Treatments to do now
- Apple maggot
- Timely topic
- Spotted wing drosophila is infesting strawberries
- What to do about hail damage
- E-samples
- Cottony ash psyllid
- Cottony maple scale
- Cottonwood cankers
- June 21, 2017
- Plant Development
- Emerald ash borer update
- Treatments to do now
- Spruce bald scale
- Spruce needleminer
- Treatments to do in another week
- Apple maggot
- Timely topic
- Cedar mortality update
- Herbicide drift injury
- E-samples
- Apple scab
- Ash flower gall mite
- Ash leaf curl aphid
- Cedar-apple rust
- Cottony maple scale
- Mulberry identification
- Pine wilt disease
- Plum curcullo
- Poplar borer
- Spindle gall
- June 14, 2017
- Plant Development
- Treatments to do now
- Dothistroma needle blight
- Treatments to do in another week
- Spruce bud scale
- Spruce needleminer
- Timely topics
- The widespread drought
- Yellowing (chlorotic) leaves
- E-samples
- Apple scab
- Ash rust
- Blister beetles
- Cereal rust
- Cladoptosis (shedding aspen twigs)
- May/June beetles
- June 7, 2017
- Plant Development
- Treatments to do now
- Dothistroma needle blight
- Timely topic
- Dying cedar seedlings
- Drought and spruce
- Herbicide injury appearing
- E-samples
- Leaf blotch on buckeye
- Pear leaf spot
- Pine tortoise scale
- Tent caterpillar
- May 31, 2017
- Plant Development
- Treatments to do now
- Cottonwood borer
- Shearing pine candles
- Timely topic
- Pine pollen
- E-samples
- Ash leaf curl aphid
- Cankerworms
- Maple anthracnose
- Maple bladder galls
- Oak-apple gall
- Oystershell scale on aspen
- Pine sawflies
- Plum pockets
- Rose chafer
- May 24, 2017
- Plant Development
- Treatments to do now
- Bronze birch borer
- Cedar-apple rust
- Codling moth
- Pine needle scale
- Needlecast diseases of spruce
- Timely topic
- Spruce desiccation injury
- North Dakota elm dying on Capitol Hill
- E-samples
- Ash anthracnose
- Redheaded or banded ash borer
- Engraver beetles in the Black Hills
- Erineum mite on linden
- Nightshade in trees
- Peach of a problem
- May 17, 2017
- Plant Development
- Treatments to do now
- Bronze birch borer
- Cedar-apple rust
- Codling moth
- Pine needle scale
- Needlecast diseases of spruce
- Timely topic
- Frost damage on ash
- Ash anthracnose
- Tent caterpillars on the move
- Pollination requirements for fruit trees
- E-samples
- Male cones on spruce
- May 10,2017
- Plant Development
- Treatments to do now
- Second apple scab treatment
- Clearwing ash borer
- Diplodia tip blight
- Needlecast diseases of spruce
- Treatments to do soon
- Pine needle scale
- Timely topics
- Emerald ash borer update
- Irrigation requirements for seedlings
- Irrigation water quality
- E-samples
- Ash flower galls are dropping
- Tent caterpillars
- May 3, 2017
- Plant Development
- Treatments to do now
- Clearwing ash borer
- Treatments to do soon
- Diplodia tip blight
- Needlecast diseases of spruce
- Timely topic
- Late April snow and cold injury
- Red leaves on maple
- E-samples
- Alcohol flux
- Deer browsing on pines
- Woodpecker injury on oaks
- April 26, 2017
- Plant Development
- Treatments to do now
- Pine engraver beetle
- Spruce Spider mite
- Zimmerman pine moth
- Treatments to do soon
- Clearwing ash borer
- Timely topics
- Tree pollen problems
- It's time for morels
- An update to the sweating bare-root nursery stock article
- April 19, 2017
- Plant Development
- Treatments to do soon
- Pine engraver beetle
- Spruce spider mite
- Zimmerman pine moth
- Timely topic
- Emerald ash borer update
- Planting (and sweating) bare-root trees
- April 12, 2017
- Plant development
- Treatments to do soon
- Apple scab and cedar-apple rust fungicide applications
- And some trees that are not susceptible to the disease
- Tent caterpillar egg mass removal
- Zimmerman pine moth
- Pine engraver beetle
- Timely topics
- Horses and cherry trees: a bad combination
- Buying bare-root stock to plant now: be cautious!
- March 29, 2017
- Plant Development
- Treatments to do soon
- Apple scab and cedar-apple rust fungicide applications
- Tent caterpillar egg mass removal
- Timely Topic
- What to do about a stump
- E-samples
- Black knot
- Sawyer beetles and pine wilt
- March 15, 2017
- Timely Topics
- Our temperature roller coaster and tree injury
- Oh Deer and Meyer spruce
- E-samples
- Pine needle scale and mugo pine
- Clearwing ash borer
- March 1, 2017
- Timely Topics
- How to germinate acorns?
- What is coming out of my stored firewood?
- E-samples
- Ponderosa pine shedding bark – it’s closer to sugar time!
- Red ring rot in white spruce
- February 16, 2017
- Timely Topics
- What about winter watering?
- Will this warm weather hurt trees?
- E-samples
- Flies crawling on mpale trees
- Possible pine wilt disease
- February 1, 2017
- Timely Topics
- Is my tree worth anything?
- Can we begin pruning soon?
- Maples are starting to "bleed"
- E-samples
- Pear scab
- Tree identification
- January 18, 2017
- Timely Topics
- Winter Watering
- Some cherries to consider for spring planting
- E-samples
- Squirrels chewing tree trunks
- Black knot on cherry
- January 4, 2017
- Timely Topics
- My Christmas Tree is Growing
- E-samples
- Pines Turning Color
2016 Alerts
- December 14, 2016
- Timely Topics
- Selecting firewood
- E-samples
- Pine wilt disease
- November 30, 2016
- Timely Topics
- Frost cankers and cracks, does wrapping help?
- E-samples
- Twigs falling from a coffee tree
- Small holes in pine bark
- November 16, 2016
- Timely Topics
- Picking out the perfect Christmas tree
- Snow bending tree branches
- Ice melt products and plants
- E-samples
- Junipers turning color
- November 2, 2016
- Timely Topics
- Warm autumns and the problem for trees
- The mountain pine beetle epidemic is ending
- E-Samples
- Spider webs appearing on lawns and trees
- Zimmerman pine moth
- October 19, 2016
- Timely Topics
- Fall color on arborvitae
- Late frost allowing great fall color to occur
- Woolly apple aphid
- E-Samples
- Chinese mantis
- Fireblight
- Pigeon tremex
- Pine needle scale
- Turf rust
- October 5, 2016
- Timely Topics
- Acorn flour
- Multicolored Asian lady beetles
- E-samples
- Bleeding canker on cottonwood
- Spruce gall midge
- September 28, 2016
- Timely Topics
- Pine needles turning yellow too!
- Planting acorns
- E-samples
- Ash seed weevil
- Willow sawfly
- September 21, 2016
- Timely Topics
- Pine needles turning yellow
- Verticillium wilt continues
- E-Samples
- Cytospora canker on cottonwood
- Ash flower galls
- Pear-shaped crabapple
- September 14, 2016
- Timely Topics
- What causes trees to turn color
- Fall is a good time to plant
- E-samples
- Cedar-apple rust
- Oak rough bullet gall
- Large Tolype moth
- Transplant problems
- September 7, 2016
- Timely topics
- Russian-olive wood
- Walnut anthracnose
- Transline herbicide and honeylocust
- E-samples
- Ash borers
- Ghost plant
- August 31, 2016
- Timely topics
- Lightning struck tress
- Bur oak blight
- Sulphur yellow fungus
- Verticillium wilt in elms
- E-samples
- Willow cone gall
- Can I eat this?
- August 24, 2016
- Timely topics
- Planting buckeyes and walnuts
- Verticillium wilt
- Spring-flowering shrubs blooming
- E-samples
- Cottonwood petiole gall
- Woolly oak gall
- August 17, 2016
- Plant development
- Timely Topics
- Squirrels and trees
- What to do about a broken branch
- E-samples
- Juniper broom rust
- Melampsora rust
- August 10, 2016
- Plant development
- Timely Topics
- Storm-resistant trees
- Mountain pine beetles are beginning to fly
- What crabapples are resistant to fireblight?
- E-samples
- Bur oak blight
- Cicada killers
- Chlorosis
- Fall webworm
- Tar spot
- August 3, 2016
- Plant development
- Timely topics
- Urban Wood Utilization coming soon
- May I eat these fruits?
- E-samples
- Black blister beetles
- Groundcherries
- Peat scab
- Walnut ceterpillar
- Willow scab
- July 27, 2016
- Plant development
- Timely topics
- Trees and the current drought
- Frost damage on spruce
- E-samples
- Cotoneaster leaf crumpler
- Earwigs and pill bugs
- Ichneumon wasps
- Leaf blister on maple
- Pear slugs
- Spindle gall on plum
- July 20, 2016
- Plant development
- Timely topics
- Spotted wing drosophila
- Hackberries are releafing
- E-samples
- Cedar-quince rust
- Codling moth
- Emerald ash borer look-alikes
- Maple bladder gall mite
- Plum pockets
- Phomopsis canker on Russianolive
- Root weevils coming in homes
- July 13, 2016
- Plant development
- Timely topics
- Sucking insects
- Herbicide injury on trees
- Eriophyid mites on spruce
- E-samples
- Cicadas
- Leafy bracts on lindens
- Common chokecherry, not poison sumac
- July 6, 2016
- Plant development
- Timely topics
- Drought and trees
- Twigs dropping from cottonwoods
- Codling moth and apples
- E-samples
- Maple bladder gall
- Hackberry nipple gall
- Smaller European elm bark beetle
- June 29, 2016
- Plant development
- Tasks to complete in another week
- Apple maggot
- Timely Topics
- What to do about spray-damaged trees
- Why have the hackberry lost their leaves?
- Heat stress
- Woolly aphids on apples and elms
- E-samples
- Plum curculio
- Clearwing ash borer pupae skins
- Blister beetles
- June 22, 2016
- Plant development
- Tasks to complete in another week
- Apple maggot
- Timely topics
- New emerald ash borer infestations in Nebraska
- Cottony ash psyllid
- Chlorosis in trees
- E-samples
- Apple scab
- Amur chokecherry fruit
- Root weevils
- June 15, 2016
- Plant Development
- Tasks to complete in another week
- Spruce bud scale
- Spruce needleminer
- Timely Topics
- Emerald ash borer discovered in Omaha, NE
- Pine wilt disease advancing north
- Dutch elm disease symptoms are appearing
- E-samples
- Forest tent caterpillar
- Powdery mildew
- Cedar-apple rust on apple, crabapple and hawthorn
- Spindle galls
- Plum pockets
- June 8, 2016
- Plant Development
- Tasks to complete in another week or two
- Spruce bud scale
- Spruce needleminer
- Timely Topics
- Beetle-geddon (May beetles and June bugs)
- Juniper tip blight
- Ash leaf curl
- E-samples
- Ash/lilac borer
- Ash rust
- Buckeye rust
- Cereal rust
- Plum pockets
- June 1, 2016
- Plant development
- Tasks to perform now
- Bronze birch borer treatments
- Shearing pines
- Timely topics
- Treehoppers
- Armillaria root disease
- White pine blister rust
- E-samples
- Common buckthorn identification
- Emerald ash borer (Illinois)
- Honeylocust borer
- Flathead appletree borer
- Male cones on conifers
- Tent caterpillars
- May 25, 2016
- Plant Development
- Tasks to perform now
- Cedar-apple rust treatments on apples
- Codling moth and plum curculio treatments
- Bronze birch borer treatments
- Tasks to do in a week or two
- Shearing pines
- Timely Topics
- Frost damage on ash and hackberry trees
- Ash anthracnose
- Emerald ash borer has NOT been detected in the state
- Lecanium scales are producing honeydew
- E-samples
- Buckeye blotch
- Peach leaf curl
- Weeds - common mallow and field pennycress
- May 18, 2016
- Plant Development
- Tasks to perform now
- Cedar-apple rust treatments on apples
- Codling moth treatments
- Pine needle scale treatments
- Tasks to do in a week or two
- Bronze birch borer treatments
- Timely Topics
- Frost damage on trees
- Cedar-apple rust galls on junipers
- Oystershell scale
- E-samples
- Maple bladder galls
- Pine tortoise scale
- May 11, 2016
- Plant Development
- Tasks to perform now
- Clearwing ash borer treatments
- Spruce needlecast treatments
- Tasks to do in a week or two
- Codling moth treatments
- Pine needle scale
- Timely Topics
- Mushroom hunting
- E-samples
- Galls on junipers
- Crown rust
- May 4, 2016
- Plant Development
- Tasks to perform now
- Clearwing ash borer treatments
- Diplodia tip blight treatments
- Zimmerman pine moth treatments
- Tasks to do soon
- Spruce needlecast treatments
- Timely Topics
- Seed crop on elms
- E-samples
- Alcohol Flux
- Sunscald on maple
- April 27, 2016
- Plant Development
- Tasks to perform now
- Apple scab second application
- Spruce spider mite treatment
- Tasks to do soon
- Clearwing ash borer treatments
- Timely Topics
- Bark beetle treatments in the Black Hills
- Problems with spraying for bark beetles
- E-samples
- Elm calligrapha
- Redcedar in gardens
- Winter burn on yews
- April 13, 2016
- Plant Development
- Timely Topics
- Buying nursery stock
- Blueberies
- Training young trees
- E-samples
- Ash flower gall mite
- Mushrooms in lawns
- Sapsuckers
- April 6, 2016
- Plant Development
- Timely Topics
- Tent caterpillars
- E-samples
- Discolored Scotch pine
- Split elm trunk
- Poor pruning on a silver maple
- March 30, 2016
- Plant Development
- Timely Topics
- Spring fruit tree treatments
- E-samples
- Black knot
- Cedar-apple rust galls
- Juniper pollen cones
- March 23, 2016
- Plant Development
- Timely Topics
- Pruning competing leaders in young spruce
- E-samples
- Crown gall on cherry
- Aspen twiggall fly
- March 16, 2016
- Timely Topics
- Stump grinding
- E-Samples
- Pine needle scale
- Aspen heart rot
- March 9, 2016
- Timely Topics
- Walnut syrup
- E-samples
- Borers in trees
- March 2, 2016
- Timely Topics
- Pruning out fire blight
- Pruning shrubs
- E-samples
- Bur oak, galls and woodpeckers
- Browsing on pine needles
- February 17, 2016
- Timely Topics
- What to do about bunny damage
- E-samples
- Sunscald on maple
- Topped silver maple
- February 3, 2016
- Timely Topics
- Maple sap may be flowing soon
- Tent caterpillars egg mass removal
- Fruit tree pollination requirements
- Forcing flowering shrubs to bloom indoors (did it work)
- E-samples
- Bagworms in spruce tree
- January 20, 2016
- Timely Topics
- Now is the time to order bare-root stock from your districts
- Forcing flowering shrubs to bloom indoors
- E-samples
- Possible emerald ash borer infestations (in New York)
- Pine tips littering the ground
- January 6, 2016
- Timely Topics
- Celebrate the Winter! Some plants with winter interest
- A sign of spring: red oaks are shedding their leaves
- Will the cold hurt my trees?
- E-samples
- Hackberry witches'-broom
2015 Alerts
- December 16, 2015
- Timely Topics (Oh Deer! How to reduce damage to woody plants)
- E-samples (leaf-footed bugs in home)
- December 2-9, 2015
- Timely Topics (sunscald and frost cracks on ornamental trees)
- E-samples (Ichneumon wasps; pine bark adelgid)
- November 18-25, 2015
- Timely Topics (finding the perfect Christmas tree)
- E-samples (moving mountain pine beetle in firewood)
- November 4-11, 2015
- Timely Topics (ash yellow; Jack pine as a landscape tree; diplodia tip blight)
- E-samples (apple identification; euonymus aerial rootlets; pine wilt; sapsucker injury on pine)
- October 21-28, 2015
- Timely Topics (buying firewood)
- E-samples (bark lice; boxelder borer; juniper broom rust)
- October 7-14, 2015
- Timely Topics (fall color; fall color on evergreens)
- E-samples (ash seed weevil; color change on arborvitae; termites)
- September 23, 2015
- Timely Topics (chestnuts versus buckeyes; lightning struck trees)
- E-samples (dogwood sawfly)
- September 16, 2015
- Timely Topics (oak leaf blister; why is the ground so "sappy" beneath my pine?)
- E-samples (ash anthracnose on black ash; leaf crumpler on cotoneaster)
- September 9, 2015
- Timely Topics (why are the leaves discolored and falling off my aspen, cottonwood or poplar tree?)
- E-samples (oak leaf blister; hedgehog gall on oak)
- September 2, 2015
- Timely Topics (eating the fallen "chestnuts;" mighty trees from small acorns; what about BOB?)
- E-samples (frogeye)
- August 26, 2015
- Timely Topics (harvest walnut for seeds and food; fall webworm; common buckthorn fruit - DO NOT EAT)
- E-samples (fasciation on spirea; melampsora on cottonwood; septoria on dogwood; tar spot on maple)
- August 19, 2015
- Plant Development
- Timely Topics (verticillium wilt; stem girdling roots)
- E-samples (ash bark beetle; ground beetles; walnut anthracnose; sulphur fungus)
- August 12, 2015
- Plant Development
- Timely Topics (fall webworm; mountain pine beetle)
- E-samples (elm sawfly; fireblight on cotoneaster; oak anthracnose)
- August 5, 2015
- Plant Development
- Timely Topics (Willow blight; Ants & trees)
- E-Samples (Golden soldier beetle; Tar spot on maple; Wooly oak gall)
- July 29, 2015
- Plant Development
- Timely Topics (why is my pine turning brown at the tip? {diplodia tip blight}; why is my spurce turning brown? {spruce spider mite})
- E-samples (plant identification for jams and jellies; pear slug; bacteria leaf spot; hawthorn rust)
- July 15, 2015
- Plant Development
- Timely Topics (Dutch elm disease; locust borer)
- E-Samples (fireblight)
- July 8, 2015
- Plant Development
- Pest Treatments to be done now (apple maggot)
- Timely Topics (pine wilt disease; emerald ash borer - and it has NOT been found in South Dakota)
- E-samples (ash leaf curl aphid; ash rust; cedar-apple rust; cedar-quince rust; cholorosis on river birch; cottonwood twig shedding and petiole gall; frogeye on apple; hormonal herbicide injury; honeylocust podgall midge)
- July 1, 2015
- Plant Development
- Pest Treatments to be done soon (apple maggot)
- Timely Topics (why are the lower branches dying on my blue spruce; tree damage with the recent storm)
- E-samples (ash rust; dog vomit fungus; elm sawfly; plum pocket)
- June 24, 2015
- Plant Development
- Pest treatments to be done now (spruce bud scale; spruce needleminer)
- Timely Topics (ash leaf curl aphid; Dutch elm disease is beginnins to show up across the state; elm leaves are turning yellow due to scales as well as DED)
- E-samples (red turpentine beetle; herbicide injury on lilac; venturia leaf and shoot blight)
- June 17, 2015
- Plant Development
- Pest treatments to be done now (spruce bud scale; spruce needleminer)
- Timely Topics (why are my tree's leaves turning yellow?)
- E-samples (cottony maple scale; fireblight; hackberry galls; spiny elm caterpillars; wooly elm aphid)
- June 10, 2015
- Plant Development
- Pest treatments to be done now (dothistroma needle blight)
- Timely Topics (Voles, voles, and more voles)
- E-samples (aphids, ash rust, cedar-apple rust, poplar bud gall, redheaded ash borer, woolly elm aphid)
- June 3, 2015
- Plant Development
- Pest treatments to be done now (dothistroma needle blight)
- Timely Topics (herbicide damage to windbreaks; silver and Freeman maples looking a little thin)
- E-samples (maple bladder gall; peach leaf curl; spruce gall adelgids; vole damage in cedars)
- May 27, 2015
- Plant Development
- Treatments (codling moth; shearing pines; phomopsis twig blight)
- Timely Topics (ash anthracnose; hackberry leaf drop)
- E-samples (buckeye rust; basswood mites)
- May 20, 2015
- Plant Development
- Treatments (diplodia tip blight; spruce spider mite; Zimmerman pine moth)
- Timely Topics (cedar-apple rust; leaves injured by cold weather)
- E-samples (European elm scale; pine tortoise scale; pine sawfly)
- May 13, 2015
- Plant Development
- Treatments (ash-lilac borer, cedar-apple rust, tent caterpillars)
- Timely Topics
- What will happen to freeze-damaged leaves?
- Caring for young trees damaged by the recent storms
- What to do with mature trees damaged by the storms
- Use caution when removing storm-damaged trees
- E-samples (sapsucker damage to lindens, winter-kill on spireas)
- April 29, 2015
- Plant Development
- Treatments (ash-lilac borer; apple scab; cedar-apple rust; spruce needleminer; tent caterpillars)
- Timely Topics (pollinating a single apple tree; managing cedar-apple rust on cedars {junipers}; treatments for mountain pine beetle and pine engraver beetle)
- E-samples (browning evergreens; bed borers!)
- April 22, 2015
- Plant Development
- Timely Topics (watering trees during drought; black "buds" on the ground beneath ash trees)
- E-samples (bronze birch borer; cedar-apple rust; wild cucumber vine)
- April 15, 2015
- Plant Development
- Timely Topics (pine engraver beetles are flying; planting bare-root trees; phomopsis spruce decline)
- E-samples (tent caterpillar - time ro remove the nests; black knot)
- April 8, 2015
- Timely Topics (time to treat for apple scab; walnut toxicity to nearby plants; planting trees on old feedlots)
- E-samples (spacing for Colorado spruce in a tree belt; banded ash borer exit holes)
- April 1, 2015
- Timely Topics (pruning flowering shrubs)
- E-samples (banded ash borers are flying; desiccation injury on spruce; gall wasps on oak)
- March 18, 2015
- Timely Topics (it's maple syrup time again!)
- E-samples (cedar-apple rust)
- March 4, 2015
- Timely Topics (emerald ash borer symposium, pruning young fruit trees)
- E-samples (vole damage)
- February 18, 2015
- Timely Topics (emerald ash borer symposium)
- E-samples (yellowing Schotch pines)
- February 4, 2015
- Timely Topics (oak gall and woodpeckers - a lethal combination)
- E-samples (deer damage to pines)
- January 21, 2015
- Timely Topics (ash substitutes in windbreaks)
- E-samples (porcupine and squirrel damage to trees)
- January 7, 2015
- Timely Topics (tips on buying firewood)
- E-samples (rabbit damage to trees)
2014 Alerts
- December 24, 2014
- Timely Topics (winter icing damage to trees)
- E-samples (witches' broom on hackberry)
- December 17, 2014
- Timely Topics (winter watering)
- E-samples (pigeon tremex and silver maples)
- December 3, 2014
- Timely Topics (use of ice melting products)
- E-samples (buckeyes not chestnuts; Scotch pines turning color)
- November 19, 2014
- Timely Topics (finding the perfect Christmas tree)
- E-samples (Parson spider; blowfly maggots)
- October 29, 2014
- Timely Topics (what to do about deer)
- E-samples (apple mealybug)
- October 15, 2014
- Timely Topics (water your evergreens now to reduce winterburn injury; tent caterpillar control begins now)
- E-Samples (ash seed weevils; bark lice; decay fungus on a maple and southwest disease)
- October 1, 2014
- Timely Topics (what causes leaves to turn color in the fall; What is wrong with my apples)
- E-samples (mulberry identification; apple russetting; powder post beetle)
- September 24, 2014
- Timely Topics (fall needle color change on evergreens)
- E-samples (puffball and sulphur fungi)
- September 17, 2014
- Timely Topics (be careful what you pick for fruit)
- E-samples (cotoneaster leaf crumpler; cotoneaster identification; plum curculio in plum)
- September 10, 2014
- Timely Topics (freeze injury on apple fruit; did the cold kill the mountain pine beetle?)
- E-samples (bacterial blight of lilac; fall webworm; honeysuckle aphid)
- August 27, 2014
- Timely Topics (what about BOB? -Bur Oak Blight)
- E-samples (fall webwork; septoria leaf spot on dogwood)
- August 20, 2014
- Timely Topics (poison ivy reminder; a leaf spot disease of ash)
- E-samples (brown felt blight on spruce; earwigs)
- August 8, 2014
- Timely Topics (Squirrel damage to hackberries)
- E-samples (hackberry island chlorosis; leafcutter bees; walnut anthracnose)
- July 30, 2014
- E-samples (mites on viburnum; saltcedar in bloom; tar spot appearing)
- July 23, 2014
- Timely topics (herbicide drift claims)
- E-samples (ash and privet borer; chokecherry midge; Dutch elm disease; fireblight; plum curculio)
- July 14, 2014
- Timely topics (leaf fall on cottonwoods; poplar gall aphids; willow cone gall midges)
- E-samples (Tartarian honeysuckle fruit; pear scab; mildew on oaks)
- July 7, 2014
- Timely topics (ash leaf curl aphid; cedars - what is going on with them; Dutch elm disease; powdery mildew)
- E-samples (ash and privet borer; anthracnose)
- July 1, 2014
- Timely Topics (cedar dieback update; apple maggot)
- E-samples (maple bladder gall; plum pockets; dog vomit fungus)
- June 25, 2014
- Timely topics (bumps on trees, maple bladder gall, and plum pockets; cedars dying in central South Dakota)
- E-samples (shothold diseases of chokecherry; clearwing ash borer pupae; winter injury on birch)
- June 18, 2014
- SD Dept. of Agriculture new Log Finder website
- Timely topics (clearwing ash borers are flying)
- E-samples (trees planted by the squirrels; boxelder gall midge; ash rust; crown rust on buckthorn)
- June 11, 2014
- Timely topics (tasks to be completed now: clearwing ash borer, codling moth; Problems with ash, frost, glyphosate and hail; Hackberry leaf tatters)
- E-samples (winter kill on yews, Zimmerman pine moth)
- June 4, 2014
- Timely topics (tasks to be completed now: clearwing ash borer, mountain pine beetle)
- E-samples (apple scab, apricot scab, chlorosis on trees, cryptosphaeria canker on aspen)
- May 28, 2014
- Timely topics (tasks to be completed now: apple scab treatments, diplodia tip blight, tasks to do soon: clearwing ash borer, what's up with ash, woodpecker damage on oak continues)
- E-samples (white snowberry identification, junipers (cedars) turning brown, cytospora canker in blue spruce)
- May 14, 2014
- Timely topics (tasks to be completed now: apple scab treatments, tasks to do soon: clearwing ash borer, diplodia tip blight, spurce spider mites and zimmerman pine moth.)
- E-samples (ash flowers falling, elm seeds falling, mushrooms in the lawn)
- May 7, 2014
- Timely topics (tasks to be completed now: apple scab treatments, tasks to do soon: clearwing ash borer, zimmerman pine moth)
- E-samples (pine needle scale, wetwood, alcoholic flux)
- April 23, 2014
- Timely topics (tasks to be completed now, current concerns)
- E-samples (spruce losing bark, borer in silver maple)
- April 9, 2014
- Timely topics (winterburn on evergreens)
- E-samples (algae, lichens and moss, winterburn on spruce)
- March 26, 2014
- Timely topics (it is maple syrup time, what to do about rabbit damaged trees)
- E-samples (banded elm bark beetles, leaning pines)
- March
12, 2014
- Timely topics (Korean fir - a tree worth trying, winter desiccation injury on pines in the Black Hills, mountain pine beetle update)
- E-samples (elytroderma needle cast)
- February
26, 2014
- Timely topics (the winter cold and our trees and shrubs, the winter cold and moutain pine beetle/emerald ash borer, common hoptree is anything but common.)
- E-samples (carpenter ants, rabbit damage to trees)
- February
12, 2014
- Timely topics (emerald ash borer update, which holds up better, red or yellow fruit on a crabapple)
- E-samples (lilac identification, what killed the maple)
2013 Alerts
- December 2013
- Timely topics (the tree book is out)
- November 13 - 20, 2013
- Timely Topics (the tree book is out, finding the perfect Christmas tree)
- E-samples (cotoneaster identification)
- October 30 - November 6, 2013
- Timely Topics (ash trees are "raining" worms)
- E-samples (blemishes on applies, puffballs)
- October 16-23, 2013
- Timely Topics (firewood)
- E-samples (chokeberry identification, oak galls, pine needle scale)
- October 2-9, 2013
- Timely Topics (snow storm tree damage in the Black Hills, autumn needle drop and evergreens, first annual wood utiliziation workshop Oct. 12 in Brookings)
- E-samples (horntails still be found in trees, Ussurian pear fruit)
- September 18-25, 2013
- Timely Topics (emerald ash borer discovered in Colorado, autumn needle drop and evergreens, first annual wood utilization workshop Oct. 12 in Brookings)
- E-samples (melampsora leaf rust, tar spot, horntails found in trees and stumps)
- September 11, 2013
- Timely Topics (fall color season is almost here)
- E-Samples (barklice, carpenterworm in ash, fall webworm nests)
- September 4, 2013
- Timely Topics (ash and other trees beginning to turn yellow, spruce showing drought stress, a correction to the August 19 Update)
- E-Samples (ash borer in lilac, sulfur yellow fungi)
- August 28, 2013
- Timely Topics (better begin waterting now)
- E-samples (European flea weevil on elm, willow scab, common chokecherry identification, common buckthorn - a plant NOT to confuse with chokecherry)
- August 19, 2013
- Timely Topics (a great year for apricots and peaches)
- E-samples (willow blight, herbicide injury and trees, ash flower gall mite, leaf cutter bees)
- August 12, 2013
- Timely Topics (plant development, verticillium wilt of catalpa, cedar bark beetles are flying)
- E-samples (linden leaf blotch, cytospora canker on stone fruit, frogeye disease on apple)
- August 5, 2013
- Timely topics (plant development, why are the leaves turning color)
- E-samples (mulberry identification, witches' broom on hackberry, tar spot on maples)
- July 31, 2013
- Timely topics (plant development)
- E-samples (mulberry identification, lecanium scale, pine needle scale, sawyer beetles in pines)
- July 24, 2013
- Timely topics (plant development)
- E-samples (apple maggot, apple scab, cedar-apple rust, fruit cracking on apples, anthracnose on raspberries, picnic beetles in raspberries, giant willow aphid)
- July 17, 2013
- Timely topics (plant development, cottonwood "cotton" confused with webbing for spider mites)
- E-samples (black chokeberry, chlorotic maples)
- July 10, 2013
- Timely topics (plant development, what to treat now: apple maggot)
- E-samples (ash flower gall, ash leaf curl aphid, black knot, powdery mildew)
- July 4, 2013
- Timely topics (plant development, what to treat now: apple maggot, information you can use: mountain pine beetles are beginning to fly)
- E-samples (aphids, pine sawflies, poplar vagabond aphid)
- June 17, 2013
- Timely topics (plant development, what to treat now: spruce bud scale, spruce needleminer, information you can use: why are spruce dying across the state, dutch elm disease symptoms are appearing)
- E-samples (apple scab, cottonwood petiole gall, leaf blotch disease of buckeye, procerum root disease of white pine)
- June 12, 2013
- Timely topics (plant development, what to treat now or soon: spruce bud scale, spruce needleminer, information you can use: stinger to kill broadleaf weeds in conifer belts)
- E-Samples (cedar-apple rust, cicadas, hackberry tatters, hound's tongue)
- June 5, 2013
- Timely topics (plant development, what to treat now or soon: mountain pine beetle treatments)
- E-Samples (browning arborvitae, dieback on maples, ash rust, crown rust, hackberry tatters)
- May 29, 2013
- Timely topics (plant development, what to treat now or soon: codling moth, shearing pines, juniper twig blight)
- Problems seen in the field (shot-hole disease of apricot)
- E-Sampes (identification of common chokecherry, dying spruce, European pine sawfly)
- May 22, 2013
- Timely topics (plant development, what pests to treat soon: second treatment of apple scab, clearwing ash borer, diplodia tip blight, spruce spider mites)
- E-samples (cedar-apple rust, curled spruce tips, diplodia tip blight, mossy rose gall)
- May 15, 2013
- Timely topics (plant development, what pests to treat soon: clearwing ash borer, diplodia tip blight; Is it ok to use fresh wood and bark mulch in the landscape)
- E-samples (elm seed crop, spruce bud scale and ants, spruce declining, junipers covered with windblown soil)
- May 8, 2013
- Timely topics (plant development, what pests to treat now: apple scab, tent caterpillars, Zimmerman pine moth; what pests to treat in another week or so: clearwing ash borer, diplodia tip blight)
- E-samples (cedartree borers, drought-stressed spruce, people as pests)
- May 1, 2013
- Timely topics (plant development, treating for apple scab, treating for tent caterpillars, treating for Zimmerman pine moth)
- E-samples (cedar bark beetles in central South Dakota, banded ash borer appearing in homes, rabbit damaged trees: can they be saved)
- April 24, 2013
- Timely topics (the winter continues, treating for apple scab is coming up soon, update on pine bark beetles, problems occurring with spraying for bark beetles)
- E-Samples (winter burn on evergreens)
- April 17, 2013
- Timely topics (the winter continues, what does this continued cold weather do to plants, ice storm follow-up)
- E-Samples (bunnies in the belts, cytospora canker on spruce, gummosis on Prunus)
- April 10, 2013
- Timely topics (the ice storm and trees, Is honeycrisp a good apple, substituting lime sulfur)
- E-samples (squirrels in pines, squirrels in elms)
- April 3, 2013
- Timely Topics (how many trees do I need to have fruit, fertilizing seedling trees)
- E-samples (voles in junipers, squirrels in elms)
- March 20, 2013
- Timely Topics (pine engraver beetles, fertilizing seedling trees)
- E-samples (bronze birch borer)
- March 6, 2013
- Timely Topics (making maple syrup, trees for abandon feedlots)
- E-samples (vole injury to trees)
- February 6, 2013
- Current Concerns (comon ash borers and bark beetles)
- E-samples (zimmerman pine moth, deer damage caragana)
- January 23, 2013
- Current Concerns (is this cold weather going to harm trees, gold in them thar trees)
- E-samples (yellow foliage on scotch pines)
- January 9, 2013
- Current Concerns (rabbits are out in force, imprelis tree injury update)
- E-samples (horned oak gall, sawyer beetle pine wilt)
