作　　者： ; ; ; ;

机构地区： 华南农业大学农学院

出　　处： 《农药》 2009年第12期919-921,923,共4页

摘　　要： 选用2个香稻品种培杂软香(杂交稻)和桂香占(常规稻),通过田间试验研究了5个不同的生物农药和化学农药的混配组合对香稻卷叶螟、三化螟、二化螟和纹枯病的防治效果。结果表明:印楝素乳油+苏云金杆菌(B.t.)+井冈霉素+杀虫双混配组合对2个香稻的病虫害防治效果最佳,对三化螟和二化螟的防治效果达到了98%以上,对稻纵卷叶螟和纹枯病的防治效果达到了93%以上,且香稻产量较高。印楝素乳油+苏云金杆菌(B.t.)+鱼藤酮乳油+井冈霉素混配组合对培杂软香病虫害的防治和增产效果明显,对4种病虫害的防治效果都在90%左右,对三化螟和二化螟的防治效果达到97%以上;印楝素乳油+苏云金杆菌(B.t.)+井冈霉素混配组合对桂香占病虫害的防治和增产效果显著,防治效果都在90%左右。 The control effects of five mixtures of biopesticide and chemical pesticide on leaffolder, yellow borer, chilo suppressalis and rice sheath blight of aromatic rice, Pei-zaruanxiang and Gui-xiangzhan, were studied by using filed experiment. The results showed that the control effects of azadirachtin＋B.t.＋validamycin＋dimehypo on leaffolder, yellow borer, chilo suppressalis and rice sheath blight of aromatic rice, Pei-zaruanxiang and Guixiangzhan were the best which reached 93-98% and the yield of aromatic rice was higher. In addition, for Peizaruanxiang, the treatment of azadirachtin＋B.t.＋rotenone＋validamycin reduced significantly these disease and pests and increase significantly the yield; for Gui-xiangzhan, the treatment of azadirachtin＋B.t.＋validamycin had the same effects. The control effects all reached about 90%.

关 键 词： 生物农药 香稻 病虫害 产量

领　　域： [农业科学] [农业科学]