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近年来,由于耕作制度的改变,棉铃虫在各棉区的为害日趋加重。因此,筛选有效的防治药剂,是防治棉铃虫为害的主要措施之一。为验证28%辛·灭EC对棉铃虫的防治效果,2004年进行了田间药效对比试验。1材料和方法供试药剂:28%辛·灭EC和20%灭多威EC(对照)均由山东华阳农药化工集团有
In recent years, the damage caused by cotton bollworm in each cotton area has been aggravated due to the change of farming system. Therefore, the screening of effective control agents is one of the main measures to control cotton bollworm damage. In order to verify the control effect of 28% synergistic EC on Helicoverpa armigera, a field efficacy comparison test was carried out in 2004. 1 Materials and methods Test agents: 28% syphilis EC and 20% methomyl EC (control) by Shandong Huayang Pesticide Chemical Group have