论文部分内容阅读
最近,我们在榆中县来紫堡公社骆驼巷大队第四、第五两个生产队玉米地里检查,发现地老虎(有些地方群众叫麻嘴)为害玉米幼苗的情况相当严重,虫口密度大,受害株率高。第四生产队穴播玉米地平均每百穴玉米苗就有十五穴受害。受害穴内一般每穴有虫一至二条,一至二根幼苗被咬伤或咬断,多的有虫三至四条,全穴玉米被咬伤或咬断,第五生产队条播玉米地平均每百株玉米苗就有二十一苗受害,受害玉米幼苗被咬伤或咬断,附近有虫一至二条。目前这两个队的玉米苗才出土2—4天,地老虎幼虫还处于幼龄阶段,为害就达到这
Recently, we checked the fourth and fifth production team corn fields in Cameron Lane Brigade, which came to Zibo Fort commune in Yuzhong County, and found that the local tiger (in some parts of the country called Maobo) seriously damaged the corn seedlings. The population density was high , The victim strain rate is high. The fourth production team broadcast corn field average per hundred hole corn seedlings have 15 victims. One to two insects per hole in the general hole, one or two seedlings were bitten or biting, and more three to four insects, the whole hole bitten or bitten by corn, the fifth production team broadcast on average corn per 100 plants Corn seedlings have twenty-one seedlings victims, victims of corn seedlings were bitten or snapped, near the worm one to two. At present, the corn seedlings of these two teams were unearthed for 2-4 days. The ground tiger larvae are still in their infancy and the harm is achieved