葡萄瘿螨又称葡萄潜叶壁虱或毛毡病。随着葡萄栽培面积的扩大,瘿螨的发生也越来越严重。现据近几年来生产实践中观察试验情况总结如下。 一、形态特征 成虫,圆锥形,白色或灰色,腹部有多数暗色环纹,体长0.1～0.28mm左右,近头部生有2对足,腹部细长,尾部两侧各生有1根细长的刚毛。卵很小,椭圆形,近透明白色。 二、为害特点 被害叶片最初在叶的背面发生苍白色病斑,大小不等,以后叶片表面逐渐隆起,叶背 Grape scabies mites, also known as grapefruit ticks or blanket disease. With the expansion of grape cultivation area, the occurrence of scabies mites is also more and more serious. The facts in recent years to observe the production practices in the trial are summarized below. First, the morphological characteristics Adult, conical, white or gray, belly most of the dark rings, body length of about 0.1 ~ 0.28mm, near the head has 2 pairs of feet, slender abdomen, the tail on both sides of the birth of a thin Long bristles. Small egg, oval, nearly transparent white. Second, the victims of damage Victims of the first leaves in the back pale pale lesions, the size range, after the leaf surface gradually uplift, leaves back