The upper or “topside” (adaxial) surface of grape leaves damaged by leafhoppers feeding on the underside (abaxial) surface of the same leaves. G. Giese Courtesy photo
Southwest Yard & Garden; Late-season notes on the Western grape leafhopper
Dr. Marisa Thompson Extension Horticulture
Question: We bought a small vineyard and have noticed that the whitish-yellow speckles and blotches on our grapevine leaves are looking worse and worse. Barb B.
Friday, September 25, 2020