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药剂治螟,是当前防治螟害的重要措施之一。药剂治螟应以毒杀蚁螟为主,结合苗情进行施药,并应“狠抓一、三代,挑治二、四代”的防治策略,抚州平原地区的资料表明:近年来由于狠抓了第三代的三化螟防治,不但大大减轻了当代的为害,而且使第四代的发生量直线下降(其下降的幅度与第三代防治好坏有关)。第四代发生量减少了,防治面积
Pharmacy governance borer, is one of the important measures to control pest damage. Pharmacy governance stem borer should be dominated by poisoned rice stem borer, combined with seedling application, and should “pay close attention to one or three generations, pick governance two or four generations of” prevention and control strategies, Fuzhou Plain area data show that in recent years due to relentless The control of the third generation of stem borer caught the third generation not only greatly reduced the current harm, but also the fourth generation occurred a straight-line decline (the extent of its decline and the third generation of good or bad prevention and control). The fourth generation reduced the amount of prevention and control area