Woolly Elm Aphid
Eriosoma americanum, E.lanigerium and E. rileyi
- Severe infestation can twist and curl leaves; leaves can yellow; branches can dieback
- Colonies on wood are covered by a white waxy or cottony material
- Produces honeydew from the aphid feeding, look for sooty mold on leaf surfaces or twigs
- Adults are dark colored (reddish, brown, purplish), tiny size (1/16 to 5/32 inch)
- Preferred hosts are American and slippery elm
- More information on Woolly Elm Aphid...