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what is this insect on wisteria? #872325

Asked June 09, 2024, 8:02 PM EDT

This insect is about one inch long and 1/4 inch wide and appears to be feeding on Japanese wisteria blossoms. This is June 9 in Ramsey County, MN.

Can you identify it? I've not seen it in the 20 years I've had the wisteria.

Is it a pest? If yes, do you recommend I take action?

Thanks

Ramsey County Minnesota

Expert Response

Possibly a blister beetle. 
extension.umn.edu/horse-nutrition/blister-beetles-alfalfa-hay
https://apps.extension.umn.edu/garden/diagnose/insect/garden/beetles/large/blisterbeetle.html
https://www.ndsu.edu/agriculture/extension/publications/blister-beetle-management-forages-and-field-crops  scroll to the very end of this web page.
Linda G Tenneson, Benton County Extension Master Gardener & Tree Care Advisor Replied June 09, 2024, 10:24 PM EDT
Thanks for the quick response and the information. I think the insect IS a blister beetle. 

I live in a first ring suburb, no hay in sight. From what I'm reading on permaculture sites, blister beetles can do lots of damage in gardens. The recommendation on these sites is to catch them when there are fewer and knock them in soapy water. No reports of anyone getting blisters from contact with bare hands; in fact on responder said he has had contact and did not get blisters.
From: ask=<personal data hidden> <ask=<personal data hidden>> on behalf of Ask Extension <<personal data hidden>>
Sent: Sunday, June 9, 2024 9:25 PM
To: sharon-coombs <<personal data hidden>>
Subject: Re: what is this insect on wisteria? (#0142243)
 
The Question Asker Replied June 10, 2024, 6:41 AM EDT

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