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1 小苏打制剂 用0.20%的小苏打(碳酸氢钠)溶液可防治黄瓜和大白菜的白粉病、炭疽病、霜霉病及豇豆的灰霉病。2 高锰酸钾制剂用0.20%的高锰酸钾稀释液可防治瓜类的白粉病,一般5 -6天喷1次,连喷2-3次,其效果不比粉锈宁差。在茄子移栽活棵后,用800 倍高锰酸钾液喷洒,可防治茄果猝倒病。3 虫尸制剂将菜青虫、黏虫、棉铃虫和地老虎的尸体收集好,捣烂成浆。每
1 baking soda preparations with 0.20% sodium bicarbonate solution can be used to control cucumber and Chinese cabbage powdery mildew, anthracnose, downy mildew and cowpea gray mold. 2 potassium permanganate preparation with 0.20% potassium permanganate dilution can prevent melon powdery mildew, generally spray 5-6 days 1, and even spray 2-3 times, the effect is not worse than the triadimefon. In the transplanting live eggplant, with 800 times potassium permanganate spray, can prevent the damping-off disease of eggplant. 3 worm preparation Piecterworm, armyworms, cotton bollworm and the body of the tiger collected, smashed into a slurry. each