State Noxious Weeds
- Absinth wormwood (Artemisia absinthium) SD Distribution map
- Leafy spurge (Euphorbia esula) SD Distribution map
- Canada thistle (Cirsium arvense) SD Distribution map
- Perennial sow thistle (Sonchus arvensis) SD Distribution map
- Hoary cress (Cardaria draba) SD Distribution map
- Purple loosestrife (Lythrum salicaria) SD Distribution map
- Salt cedar (Tamarix aphylla, T. chinensis, T. gallica, T. parviflora and T. ramosissima) SD Distribution map
State Declared Pests
- Gypsy moth (Lymantria dispar)
