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Insect Pest Control

Q.some sort of flying beetle like bugs have been eating my roses this fall, and I can’t get rid of them. They have an iridescent

Zone Muskoka, Ontario | angela jackson added on September 18, 2019 | Answered

blue green spot on their backs. Can you advise please? I’m losing my roses!

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Answered on September 18, 2019

Unfortunately you have been visited by one of the nastiest foes encountered by any rose loving gardener. They are called Japanese Beetles. It really takes a two pronged approach to do battle with them. Using a systemic insecticide granule that can be scratched into the soils, such as those made by Bayer, will help get rid of the grubs they leave in the soils. A systemic insecticide sprayed upon the roses when the beetles first appear, or slightly before they appear if the timing is known, will also help. I am providing a link to an article I wrote about them for you as well. Nasty bugs they are! Article link: https://www.gardeningknowhow.com/ornamental/flowers/roses/japanese-beetles-roses.htm

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