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蝗虫,又叫蚂蚱、蚱蜢。属直翅目,蝗科。分为卵、幼虫(蝗蝻)、成虫。幼虫共五龄,卵在土中越冬,植食性。内蒙古地区一年一代,食性杂,分布广,密度大,危害农作物及牧草。内蒙古地区主要有土蝗和飞蝗两类,历年来都有较大面积发生。1985年全区土蝗为主发生面积313万亩,防治10万亩左右。每平方米一般5头,草滩高达80—90头,农田12—15头。大发生年,一般20—30头,最高可达250—300头。飞蝗零星发生,主要在巴盟乌梁素海周围,其他盟市地区也有发生。蝗虫最喜欢食禾本科植物,危害最重
Grasshoppers, also known as grasshoppers, grasshoppers. Is Orthoptera, Acrididae. Divided into eggs, larvae (locusts), adults. A total of five larvae of eggs, eggs in the soil overwintering, phytophagous. A generation of Inner Mongolia, miscellaneous food, wide distribution, density, endanger crops and pasture. There are two types of soil locusts and locusts in Inner Mongolia, which have occurred over a long period of time. In 1985 the area mainly locusts occurred 3130000 mus, control about 10 acres. General 5 per square meter, up to 80-90 grass beach, farmland 12-15 head. Occurs in the year, usually 20-30 head, up to 250-300 head. Migratory locusts sporadically occur mainly around Wuliangsuhai, Bameng, and other areas of the League cities also occur. Grasshoppers most like to eat gramineous plants, the hardest hit