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唐山地区花生蛴螬近几年日趋严重,每年发生面积约100多万亩。一般地块每亩减产20—25公斤,严重地块减产达50公斤以上。在花生整个生长季节,由于蛴螬种类比较多,各种蛴螬对花生的危害期不太一致,给防治工作带来很多困难。过去推广的辛硫磷拌种常规措施,对夏季蛴螬防治效果较好,但对秋蛴螬没有效果。夏季用辛硫磷药水灌根,对秋蛴螬虽
In recent years, the peanut 蛴 唐 in Tangshan area has become increasingly serious with an area of about 100 million mu each year. The general mass production of 20-25 kilograms per mu, a serious mass production reduction of 50 kilograms or more. In peanut throughout the growing season, due to more types of grubs, all kinds of grubs on the harm of peanut is not consistent, to prevent and control work to bring a lot of difficulties. Conventional measures of seed dressing of phoxim that were promoted in the past are good for control of summer chrysanthemum but have no effect on autumn chrysanthemum. Summer phoxim syrup irrigation, autumn 蛴 螬 Although