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巴盟杭锦后旗四支公社,1976年试种3,800亩水稻,由于稻水蝇和稻摇蚊的为害,加上碱害,仅保苗2,903亩。稻水蝇(见图)与稻摇蚊都是幼虫为害水稻,幼虫蛀食稻种的胚乳,使种子丧失发芽能力;稻种发芽生根后,咬食幼根,使稻苗扎根不牢,微风一吹形成漂秧现象;幼虫咬食芽鞘,使芽鞘、叶尖漂浮水面;稻水蝇的幼虫在稻根茎上化蛹,影响稻苗生长。根部被害的稻苗叶片,由挺直变为下垂,群众称为披头散发。如防治不及时,造成严重缺
Bajianhangjinqinqi four communes, 1976 test 3,800 mu of rice, due to the damage of rice water flies and rice chinense, plus alkali damage, only seedlings 2,903 acres. Rice water flies (see photo) and chinense mosquito are larvae infestation of rice, the larvae eats the endosperm of the rice species, so that the seeds lose their ability to germinate; seed germination rooting, the bite of young roots so that rice seedlings take root is not strong, the breeze A blow to form drifting phenomenon; larvae bite the sheath, the bud sheath, leaf tip floating surface; rice waterfly larvae in the rice rhizome pupation, affecting the growth of rice seedlings. Roots of the damaged rice seedlings, from upright to sag, the masses known as the Beat distribution. If prevention and treatment are not timely, causing serious shortage