Woolly Alder Aphids occur east of the Mississippi River.
These aphids get their name from the fluffy, white wax on their abdomens. They have two alternate hosts: Silver Maple and alder (Alnus spp.). Winged adults lay their eggs in the crevices of Silver Maples, and the young feed on the maple leaves. Winged adults then fly to alder trees and form large colonies. The members of a colony feed on the sap of the alder leaves and twigs, where their fuzzy white appearance makes them noticeable in late summer and fall. Their reproductive cycle is quite complex.
Ants commonly tend, or guard, the aphids, feeding on the aphids' sugary excretions.
There are 19 records in the project database.
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