萄葡毛毯病是我国一些萄萄产区重要病害之一,山西省清除县萄萄发病严重时,有一半以上染病。引起葡萄毛毯病的潜叶壁虱,以成虫在芽眼鳞片、绒球上或被害茎叶处越冬。次年春随芽萌发,壁虱自芽内爬出,附在新生叶背,即基部第一、二叶片上,随着新梢生长由下而上危害。虫口密度以基部1—3叶片最大。秋天以枝梢先端幼嫩叶片为害最重, Grapes grape blanket disease is one of the important diseases in some grape producing areas in Shanxi Province, Shanxi Province, when the incidence of serious grapes, more than half of the disease. Lint leaf ticks that cause grape felts, wintering with adults on bud scales, pompons or victim stems and leaves. The following spring sprout with germination, ticks crawling out of the bud, attached to the new leaf back, that is, the first base, the second leaf, with the growth of the shoot from the bottom up hazards. Insect population density to base 1-3 leaves the largest. Autumn to the tip of the young shoots the most severe leaves,