Insect Management Handbook

Ligurian leafhopper (Eupteryx decemnotata)

Includes:

Limonius spp.
Agriotes spp., and other wireworm species

Greenhouse whitefly (Trialeurodes vaporariorum)

Pest description and crop damage Adults (Order: Hemiptera; Family: Aleyrodidae) resemble tiny white moths about 0.1 inch long. Immature forms look like scale insects and are completely sedentary after the first nymphal instar. Whiteflies rarely, if ever, require control in PNW hemp fields. However, in hemp plants grown in greenhouses for transplant, white flies can become a nuisance pest.

Pentatomidae-several species

Pest description and crop damage Stink bug (Order: Hemiptera; Family: Pentatomidae) damage is usually a flagging of leaflet, leaf, or stem and can cause small plants to wilt. Stink bugs are present on hemp in isolated pockets in the PNW.

Two-spotted spider mite (Tetranychus urticae)

Hemp russet mite (Aculops cannibicola)

Includes:

Western tarnished plant bug (Lygus hesperus)
Pale legume bug (Lygus elisus)
Tarnished plant bug (Lygus lineolaris)

Includes:

Beet leafhopper (Circulifer tenellus)
Other leafhoppers (Empoasca spp., Ceratagallia spp., Macrosteles quadrilineatus)

Includes:

Spotted winged grasshopper (Orphulella pelidna) and others

Pest description and crop damage Many different grasshopper species (Order: Orthoptera; Family: Acrididae) live in areas near or where hemp is grown, especially in eastern and southern Oregon.