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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/

MaryKay, Master Gardener, Tree Care Advisor Replied May 31, 2024, 9:23 PM EDT

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This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

Elm Tree #870875

Expert Response

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