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Cardulloup, I believe theCardulloup, I believe the answer is in the article. Those bugs will more than likely go away when you remove the leaves. Maybe, they are actually helpful, like a companion, that blindly understands for the grapes to ripen properly; they need to have direct sunlight.

2015 Special Edition Garden GuideCooking Fresh with The Old Farmer's AlmanacThe Almanac Monthly Digital MagazineWhat the heck is a Garden Hod?