Knowledgebase

Insect identification #549021

Asked March 26, 2019, 12:14 PM EDT

Found these bored into tree limbs. Can you help us decide if they’re an invasive species? They are the size of a 50 cent piece when curled. Thank you

Rice County Minnesota

Expert Response

While it is unusual to find Japanese beetles in tree limbs, check this link
https://extension.umn.edu/yard-and-garden-insects/japanese-beetles
Check here for more information https://blog-yard-garden-news.extension.umn.edu/2018/05/dont-treat-japanese-beetle-grubs-in.html

An Ask Extension Expert Replied March 27, 2019, 11:12 AM EDT

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.

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