40_氯虫酰胺_噻虫嗪水分散粒剂对全年水稻稻纵卷叶螟的防控技术.pdfVIP

2009, 21( 3): 107~ 111 ActaAgriculturae Jiangxi 40% 唐涛,刘雪源,刘都才,魏昌贵 (, 410125) : 2007~ 2008年, 40 氯虫酰胺 噻虫嗪水分散粒剂对早中晚稻稻纵卷叶螟 防控技术研究结果表明:该药剂 对不同发生时期 稻纵卷叶螟防效高保叶效果显著持效期长, 可有效控制高龄幼虫 危害且增产效果好;在第 1代蛾峰期 2 及第 3代低龄幼虫盛期各施用 1次 40 氯虫酰胺 噻虫嗪水分散粒剂 48. 0~ 50. 0 g/hm ,控 2代!压 4代!作用明显, 有利 于全年有效防控该虫害 :稻纵卷叶螟; 氯虫酰胺;防治效果; 持效期;稻谷产量 : S435. 112. 1 : A : 1001- 8581( 2009)03- 0107- 05 Prevention and ControlTechnology for A ll- year Rice Leaf- roller w ith 40% Chlorantraniliprole Thiamethoxam WG TANG Tao, LIU Xue- yuan, LIU Du- cai, WEIChang- gui (Hunan PlantProtection Research Institute, HunanAcademy ofAgricultural Sciences, Changsha410125, China) A stract: During 2007~ 2008, the studies on theprevention and control technology for rice leaf- roller(Cnap halocroc is m ed ina lis) in early rice, medium rice and late ricewith 40 chlorantraniliprole thiamethoxam WG were carried out. The results showed that therewere high controlefficacy and longer effective duration. As rice leaveswereprotected obviously in thedifferent occurrence periods of rice leaf- roller, and the older larvae could be controlled effectively, thereby, theyield of riceapplied by this complex in secticidewas significantlyhigher than that of the check. At the peak stageof themoth of the first generation and young larvae of the 2 third generation, if this insecticidewas sprayed one tmi e at thedoseof48. 0 ~ 50. 0 g/hm , respectively, the effect ofcontrolling the second generation and reducing the fourth generation would be perfect, thus rice leaf- roller could beeasily and effectively controlled and prevented all the year. Key words: Cnap halocroc is m ed inalis; Chlorant