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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comWhat can I do. I do not see any bugs and will shrub come back next spring.
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URL to article: https://questions.gardeningknowhow.com/some-pest-ate-my-ninebark-in-a-matter-of-one-week-all-leaves-eaten/
URLs in this post:
[1] https://extension.tennessee.edu/publications/Documents/SP609.pdf: https://extension.tennessee.edu/publications/Documents/SP609.pdf
[2] http://ufdcimages.uflib.ufl.edu/IR/00/00/28/44/00001/IN62800.pdf: http://ufdcimages.uflib.ufl.edu/IR/00/00/28/44/00001/IN62800.pdf
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1 Comment To "Some pest ate my ninebark in a matter of one week. All leaves eaten."
#1 Comment By MichiganDot On 09/02/2018 @ 1:37 pm
It sounds like you had a caterpillar invasion. Something like gypsy moth, sawfly larvae and yellowneck caterpillars are a few possibilities. If the shrub was otherwise healthy and wasn’t just planted, it will recover. However, a couple years in a row of defoliation poses a serious threat. Next year, start checking your plant a few weeks before this year’s invasion happened. You may need insecticide if the numbers are too large to deal with individually. Post a picture here or at a bug ID website to confirm the pest then get a control agent that is labeled for that caterpillar.
https://extension.tennessee.edu/publications/Documents/SP609.pdf [1]
http://ufdcimages.uflib.ufl.edu/IR/00/00/28/44/00001/IN62800.pdf [2]