Linden aphid
Eucallipterus tiliae
7 host plants
Last updated
You will find green aphids with black markings clustered on the undersides of linden leaves in late spring through summer. Look for yellowing foliage and honeydew dripping onto surfaces below affected trees. Leaf curling and distortion develop when populations peak. Host trees include American linden, small-leaved linden, and silver linden.
Prune lightly infested shoots and avoid excess nitrogen fertilizer, which promotes aphid reproduction. Hose off colonies with water to reduce populations. Encourage natural enemies by avoiding broad-spectrum insecticides. Do not spray when trees are blooming, as linden attracts bees. Dormant oil in late winter suppresses overwintering nymphs if prior infestations were severe.
Quick Reference
Cultural Controls
- Wash trees with a strong stream of water to knock down aphids and wash away honeydew.
- Hand-wipe or prune to control small, localized infestations (when practical).
- Encourage aphid predators and parasites, including ladybird beetles, lacewings, and parasitic wasps.
- Avoid use of broad-spectrum insecticides which may kill these beneficial insects.
- Provide proper nutrition.
- High levels of nitrogen in the foliage encourage aphid reproduction.