Key to Major Beneficials and Pests

Pests

Hymenoptera: Aphidae
Green peach aphid with brown body, wings, and long, thin legs standing on a green leaf
Green peach aphid
(Myzus persicae)
Photo by Scott Bauer, USDA ARS
Tetranychidae: Acari
Two spotted spider mite with light brown body
Two spotted spider mite
(Tetranychus urticae)
Photo by Jack Kelly Clark, UC
Hemiptera: Pentatomidae
Green stink bug nymph with green body, brown legs, sitting on a green leaf
Green stink bug nymph
(Acrosternum hilare)
Photo by Russ Ottens
Coleoptera: Chrysomelidae
Colorado potato beetle with a black and yellow striped body and a black spotted head
Colorado potato beetle
(Peptinotarsa decemlineata)
Photo by Scott Bauer, USDA ARS
Hemiptera: Miridae
Alfalfa plant bug with a green body, brown legs, sitting on a green leaf
Alfalfa plant bug
(Adelphocoris lineolatus)
Photo by Scott Bauer, USDA ARS
Hemiptera: Miridae
Tarnished plant bug with a brown body sitting on a green leaf
Tarnished plant bug
(Lygus lineolaris (Palisot de Beauvois))
Photo by Scott Bauer, USDA ARS
Coleoptera: Chrysomelidae
cucumber beetle with yellow and black stripes
Striped cucumber beetle
(Acalymma vittatu)
Photo by Scott Bauer, USDA ARS
Lepidoptera: Noctuidae
armyworm with brown body
Fall armyworm parasitized
by chalcid wasp
Photo by Debbie Roos