What is eating my Knock-Out roses? - Knowledgebase Question

Grove City, Oh
Question by lvotaw
June 3, 2010
I have two roses and one now looks like a skeleton with flowers. I bought them because they were supposed to be care-free. I've checked them several times to see what is eating them but I find nothing. Aside from the holes, they also have what looks like leaf-miners or something eating between the leaves.


Image
Answer from NGA
June 3, 2010

0

Sawfly larvae skeletonize rose leaves and I suspect that's what is doing the damage, especially if you also have leaf miners in the other leaves. Use a product called Rose Defense and that should take care of the problem.

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