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Home » Guide » Arthropods (Arthropoda) » Unidentified Tracks, Sign, and Other Mysteries » Unidentified Signs on Twigs, Stems, and Stemlike Structures
Photo#1255252
Tip wilt, yarrow
Copyright © 2016 John van der Linden

Tip wilt, yarrow
McCarthy Lake Wildlife Management Area, Wabasha County, Minnesota, USA
July 9, 2016
On yarrow, Achillea millefolium. Swollen stem, wilted tip...looks like a fly or a lep to me, but I didn't tear into it to find out. Perhaps someone will recognize this sign. If not, does BG have an "Unidentified herbivory / feeding sign" page?
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Contributed by John van der Linden on 10 July, 2016 - 5:54pm
Last updated 24 December, 2016 - 12:51pm

Moved
Moved from ID Request.

I would assume some sort of stem-boring lep. There are pages for mysteries like this, more or less corresponding with the chapters of my book, here.
… Charley Eiseman, 16 August, 2016 - 2:24pm login or register to post comments

 
Great
Thank you, Charley!
… John van der Linden, 16 August, 2016 - 6:06pm login or register to post comments

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