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cane borers in my golden elder

20 years ago

My golden elder is showing signs of what I think is an infestation of cane borers. The ends of some of the new branch growth are wilting and there is a little hole in the branch at the point where the wilting begins (usually about 6 inches down from the tip of the stem). This happened last year too. So far the plant is still doing quite well and growing, but obviously isn't growing as much as it could since the ends of the branches are being killed.

Is there anything besides pruning off the infested branches that can be done?

~Jen~

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Comments (2)

cailinriley
20 years ago
Since no one else has attempted an answer, I'll put in my 2Â¢, although I haven't had experience with cane borers. (Knock on wood!)

I tried doing a little research for you, and most sources suggested pruning. One source named a chemical, but the article was aimed at professionals (who have licenses to use chemicals not on the regular market).

If this is the same cane borer that also attacks raspberries and currents, the articles state that pruning is an excellent control, since the insect has a two-year life cycle.

Hope this helps. Good luck with your golden elder--that's a lovely bush.
jenmb
Original Author
20 years ago
Thanks very much for the info. That's interesting about the 2-year lifecycle. Keeping that in mind I will continue my pruning and won't give up.
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