Insects » Bird Cherry-Oat Aphid
     
 
 

Bird cherry-oat aphid colony

Bird Cherry-Oat Aphid
Rhopalosiphum padi (Linnaeus)

These olive-green to black aphids are about 2 mm long and have a characteristic orange or red band across the back of the abdomen. They are a fall pest of cereal grains and the principal vector of barley yellow dwarf virus. Large populations migrate from corn in the fall to winter cereal crops. Host plants: cereals, corn, grasses, bird-cherry.