Factsheet P24: Woolly aphid of apple


The apple woolly aphid, Eriosoma lanigerum, is one of several species of aphids that can infest apple trees, but it can be a more serious problem then others. Native to eastern North America, it is now widespread throughout the world.
Woolly aphid weakens trees by feeding on bark and roots, which reduces tree health, prevents wounds from healing, and can transmit apple canker.

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