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Walter Brown reading on porch at Walker Cottage

Walter S. Brown was an Oregon State College faculty member from 1913-1942. Brown was the first Extension Horticulturalist and became the head of the Horticulture department in 1920. Brown was an expert on...
Walter Brown with daughters, Grace and Lois, and dog near rose bush

Walter S. Brown was an Oregon State College faculty member from 1913-1942. Brown was the first Extension Horticulturalist and became the head of the Horticulture department in 1920. Brown was an expert on...
Delia antiqua (Onion maggot)

Internal damage
Delia platura (Seedcorn maggot)

Male adult
Hylemya platura (Seedcorn maggot)

Female adult
Delia radicum (Cabbage maggot)

External damage or evidence; Roots
Diabrotica undecimpunctata (Western spotted cucumber beetle)

Egg, eggs, egg mass; Habitat, location
Helicoverpa zea (Corn earworm)

Immature insect, nymph or larva; Damage (to)
Helicoverpa zea (Corn earworm)

Pupa
Helicoverpa zea (Corn earworm)

Adult insect