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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comI bought my 93 yr old mom a knockout rose. During the hot dry summer she noticed insects on the leaves, and sprayed it with bug spray. When I was there she pointed out that the rose wasn’t looking well and told me what she had done with the bug spray. I removed most of the dead leaves and sprayed the bush with water to remove any residue. Should I cut it back to remove any damage done, or leave it alone to hopefully recover.
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1 Comment To "Insecticide Damage To Knockout Rose."
#1 Comment By luis_pr On 07/30/2021 @ 8:45 pm
I would ask the manufacturer of the insecticide for their input. There is usually an 800 too free number.
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