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粉蚧在吐鲁番地区除危害葡萄外,还危害枣树、桑树等。一、危害症状粉蚧以成虫或若虫危害叶片、果穗、枝蔓,多数隐藏在葡萄老蔓的裂缝、翘皮下,刺吸植株汁液,随葡萄生长,多喜欢在枝蔓裂缝、节部、分枝处或伤疤处危害,被害部位粗糙、变形。危害严重时,果粒停止生长,失去经济价值;整个树体发育不良,树势衰弱减产。
Meal scale in Turpan region in addition to endanger grapes, but also endanger the jujube, mulberry and so on. First, the hazards of mealybug adults or nymphs endanger the leaves, ear, branch vine, the majority of hidden in the vine old vine cracks, tilting the skin, sucking the plant juice, with the growth of grapes, and more like the branches in the cracks, knots, branches Or scar damage, rough parts of the victim, deformation. Harmful, the fruit stops growing, losing economic value; the entire tree dysplasia, tree weak decline.