Woolly Aphids - Subfamily Eriosomatinae

These cuties were approximately 3-5mm in length. They cover themselves with waxy filaments, which give them a fluffy appearance, hence their common name. The waxy filaments serve two purposes - to deter predators and reduce friction.

Woolly aphids are plant pests. As they feed, they inject saliva into their host plant which helps them digest the sap. This predigested sap is then sucked up by the aphid. They will feed on leaves, buds, twigs, and bark and can cause curled leaves, yellowed foliage, and poor plant growth. In addition, they secrete a sticky waste product called honeydew. A coating of honeydew can often be found on and beneath infested trees. As a result, sooty mold fungus will sometimes grow on the honeydew. The aphid on the right in this photo has a bubble of honeydew coming out of its rear.

Habitat: Garden