论文部分内容阅读
[目的]检疫性害虫稻水象甲于2010年在贵州省黔中水稻区发生危害,采用田间小区的方法,试验了3种杀虫剂不同剂量对稻水象甲幼虫进行防治。[结果]5%丁硫克百威颗粒剂2250、1875、1500 g a.i./hm2和22%吡虫.毒死蜱乳油660 g a.i./hm2、40%氯虫.噻虫嗪水分散粒剂150 g a.i./hm2防治稻水象甲幼虫药后15 d防效均在65%以上。[结论]5%丁硫克百威颗粒剂可作为防控稻水象甲幼虫的主要药剂,用22%吡虫.毒死蜱乳油、40%氯虫.噻虫嗪水分散粒剂防控稻水象甲幼虫,需用高剂量660、150 g a.i./hm2,建议在生产上交替使用。
[Objective] The quarantine pest rice water weevil (A. micrantha) was harmed in the rice area of central Guizhou Province in 2010, and three different pesticides were used to control the larvae of rice water weevil. [Result] 5% Butythronolide granules 2250, 1875, 1500 g ai / hm2 and 22% of imidacloprid Chlorpyrifos 660 g ai / hm2, 40% Chlordimes Thiamethoxam water dispersible granules 150 g ai / hm2 control rice water weevil larvae 15 d after the anti-efficacy are more than 65%. [Conclusion] The 5% D-thiacarb granule can be used as the main agent to control the water larvae of Asiatic elephant, with 22% of the fungus, chlorpyrifos EC, 40% Elephant larvae, need to use high doses of 660,150 g ai / hm2, it is recommended to use alternately in production.