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农药缓释颗粒剂是新近发展的新剂型,这种新剂型可以延长药效和降低毒性。在南京大学化学系等单位的大力协助下,我们经过数百次的试验,以木粉为载体,用对二氯苯和叔丁基甲基苯酚作敌敌畏的稳定剂,又以石蜡和沥青为包衣,创制出敌敌畏缓释浮性颗粒剂。通过两年来的试验证明,这种颗粒剂能保持敌敌畏原有的杀虫作用,延长敌敌畏的药效,适用于作物植株密封的情况下,防治在植株下部为害的昆虫,如稻飞虱等,或者是贮仓和密封条件下的害虫。在水田的药效可达12—18天,旱地使用,药效更长。使用普通农药防治稻飞虱时,10天打两头,而施缓释剂,只需1次即能控制其为害。敌敌畏缓释浮性颗粒剂的制作方法。
Pesticide sustained release granules is a newly developed new dosage form that can prolong efficacy and reduce toxicity. In Nanjing University Department of Chemistry and other units with the strong help, we have hundreds of tests, wood flour as a carrier, with dichlorobenzene and tert-butyl methyl phenol as a stabilizer dichlorvos, paraffin and asphalt coating , Created a DDVP sustained release floating granules. Through two years of tests prove that the granules can maintain the original role of dichlorvos insecticide to extend the efficacy of dichlorvos for the case of crop plants sealed the plant in the prevention and control of harmful insects such as planthoppers, Or pests in silos and seals. Efficacy in paddy fields up to 12-18 days, dry land use, efficacy longer. The use of common pesticides to control planthoppers, 10 days playing two, and Shi slow release agent, just 1 can control the damage. Preparation of dichlorvos sustained release buoyant granules.