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防治水稻病害的杀菌剂国内外正在发展、推广以及研究开发的有以下几种:1.稻瘟灵:剂型有40%乳油、12%颗粒剂、2.5%粉剂和12%可湿性粉剂。稻瘟灵在1~2ppm浓度时能阻止稻瘟病菌丝的生长:10ppm 浓度时,附着胞不能形成侵入丝。稻瘟灵具有内吸作用,通过根系处理能防止病菌侵入植株,有效地防治稻瘟病。稻病灵对稻瘟病既有预防作用,又有治疗作用。使用安全,残留量低,但残效期却长达30天左右。用药量为60~75克有效成分(?)亩。
The fungicides for preventing and controlling rice diseases are being developed, popularized and researched and developed at home and abroad. The following are listed as follows: 1. Rice praeparatum: 40% EC, 12% granule, 2.5% powder and 12% wettable powder. Rice blast inhibited the growth of the mycelia of Magnaporthe grisea at the concentration of 1 ~ 2ppm: when the concentration was 10ppm, the appressorium could not form invaded silk. Rice blast has a systemic effect, through the root system to prevent pathogens invade the plant, the effective control of blast. Rice disease Ling on both blast prevention, but also a therapeutic effect. Safe to use, low residue, but the residual period is up to 30 days. Dosage of 60 to 75 grams of active ingredient (?) Mu.