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Rosy Apple Aphid
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Colony of rosy apple aphids |
Apples damaged by rosy apple aphid feeding |
Life Cycle: Overwinter on host as black shiny eggs that hatch at bud burst. Several overlapping generations are produced before aphids leave host in mid-summer. Winged forms return in fall to lay overwintering eggs.
Monitoring: Beginning at pink stage, inspect leaves and shoots in the inside of the tree canopy for presence of aphid colonies.
Hosts: Apple, plantain, ribgrass.
Comments: Very tightly curled leaves and twisted shoots inside tree are characteristic signs of feeding damage as well as deformed and stunted fruit. Rosy apple aphid feeding causes small flecks of green tissue throughout fruit as well as 'bumpy' fruit surface.
Body length: Adult - 2.0mm; Mature nymph - 1.8mm
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