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麦蛾以幼虫蛀食危害麦、稻等禾本科作物种子,是我国三大仓虫之一。近年来对小麦为害逐年加重,一般田块麦粒被害率在5％～10％,平均每穗蛀食2～3粒,每667平方米产量损失20～30公斤。 麦蛾一年发生四代,以老熟幼虫在被害的粮食粒内越冬,在4月下旬化蛹,5月中旬羽化,迁飞到田间,产卵于麦穗颖缝间,每处产1粒。1头幼虫危害1～2个麦粒,麦子收获入仓后,继续危害麦粒。
Microti moth infestation by larvae of wheat, rice and other crops of gramineous crops, is one of China’s three major caterpillars. In recent years, the damage to wheat increased year by year, the general field of wheat damage rate of 5% to 10%, an average of 2-3 per panicle eroded, 667 square meters yield loss of 20 to 30 kg. Occurred four generations a year old moths to mature larvae in the victim grain grain winter, pupae in late April, emergence in mid-May, moved to the field, spawning in the ears of wheat, each producing 1 grain. 1 head larvae harm 1 to 2 grains of wheat harvested into the warehouse, continue to harm the grains.