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近两年,棉铃虫危害十分猖獗。选用理想药剂是治理棉铃虫的重要措施。杜邦公司继万灵24%水剂之后,在中国又登记了一个新的剂型:万灵90%可溶性粉剂。属氨基甲酸酯类杀虫剂,具有杀虫速度快捷、兼有杀卵作用,杀虫谱广、残留低等优点。经过两年试验,发现该剂型除保留了万灵24%水剂的优点外,还有以下几点改善和提高:1 90%万灵粉剂稀释3000—5000倍,防效大于85%,每亩用药量7—10克,兑水稀释,茎叶喷雾即可。2 万灵粉剂的持效期比万灵水剂平均增长
The past two years, the bollworm harm is rampant. Selection of the ideal agent is an important measure to control the bollworm. DuPont following the 24% agent Wan Ling, in China has registered a new dosage form: Wan Ling 90% soluble powder. Is a carbamate insecticide, insecticidal speed, both oviposition, insecticidal spectrum wide, low residual advantages. After two years of trial, we found that the dosage form not only retains the advantages of the 24% water solution, but also the following improvements and enhancements: 1) 90% of the Wanling powder is diluted by 3000-5000 times and the anti-effect is more than 85% Dosage 7-10 grams, diluted with water, spray can be stems and leaves. 2 Wanling powder agent than the average effective period of the Waling agent