自制防虫农药三法一“五合一”粉剂。将烟梗十公斤，硫磺十公斤，石灰二十五公斤，狼毒五公斤和良姜五百克（后两种中药店均有售）磨成细粉，混合后就成防虫粉剂。用这种粉剂每亩喷洒六点五至七点五公斤，对各种蚜虫、谷子钻心虫等害虫具有理想的防治效果。二．“三合一”... Homemade pest control pesticide three law a “five in one” powder. Ten kilograms of stems, ten kilograms of sulfur, twenty-five kilograms of lime, five kilos of venom and five hundred grams of galangal (the latter two are sold in traditional Chinese medicine shops) are ground into fine powders and mixed into powder. Spraying 6.5 to 7.5 kilograms per mu with this powder has an ideal control effect on various aphids, millet worms and other pests. two. “triple”...