Subject
- Agricultural pests -- Control -- Congresses48
- Wheat -- Diseases and pests4
- Insecticides -- Research3
- Heliothis zea2
- Hessian fly2
- Oulema melanopa -- Geographical distribution2
- Oulema melanopa -- Phenology2
- Hessian fly -- Control1
- Insect population density1
- Oulema melanopa -- Control1
- Oulema melanopa -- Oregon1
- Sitodiplosis mosellana -- Control1
- Soft wheat -- Diseases and pests1
- Wireworms -- Control1