水稻叶甲螨是一种新螨害,成螨体黑褐色,半卵圆形,体躯坚硬有光泽,体长0.6毫米,宽0.4毫米。幼螨较小,浅褐色。成若螨群集在稻叶上剌吸汁液,先取食叶端部,叶端部受害后向内卷合,被害部分与健康部交界明显。害螨群集在黄绿交界处不断向下危害,使枯黄部分不断变长,危害至叶中部,叶片不易卷合而呈倒挂状,严重时满田都是倒挂的枯黄叶。水稻叶甲螨主要在水稻大田危害,水稻活棵返青至分蘖前期为危害盛期, Rice leaf mite is a new mite damage, into a mite body dark brown, semi-oval, body hard and shiny body, body length 0.6 mm, width 0.4 mm. Larvae smaller, light brown. If the mite cluster assists in sucking the juice on the rice leaves, the tip of the leaf is first taken and the end of the leaf is wound inwards, and the junction of the victim and the health department is obvious. Pest mites cluster in the junction of yellow and green continue to endangered, so that the yellow part of the growing lenght, endangering the central leaves, leaf is not easy to roll upside down, serious when Mantian are upside down yellow leaves. Rice leaf mite mite damage in the main rice fields, rice trees return green to the early tillering peak period,