Knowledgebase

Elm Tree #870875

Asked May 30, 2024, 10:25 PM EDT

I am afraid I have elm leafminers. What treatments are there?

Hennepin County Minnesota

Expert Response

Yes, that does look like elm leafminer damage. The following websites show the insects, explain their development and gives treatment recommendations.

1. https://hyg.ipm.illinois.edu/pastpest/200806f.html
2. https://bygl.osu.edu/node/1287
3. https://hortsense.cahnrs.wsu.edu/fact-sheet/elm-elm-leaf-beetle/