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中国农学通报 ›› 2010, Vol. 26 ›› Issue (16): 272-276.

所属专题: 植物保护 水稻

• 植物保护 农药 • 上一篇    下一篇

生物农药配施对早季香稻病虫害的防治效果

段美洋 唐湘如 郑天翔 舒时富 黎国喜 钟克友 肖立中 田华 段美洋   

  • 收稿日期:2010-04-07 修回日期:2010-05-21 出版日期:2010-08-20 发布日期:2010-08-20
  • 基金资助:
    “十一五”国家科技支撑项目;国家自然科学基金项目;广东省自然科学基金;广东省农业攻关重点专项

Control Effect of Mixed Biopesticide on Aromatic Rice Diseases and Pests in Early Season

  • Received:2010-04-07 Revised:2010-05-21 Online:2010-08-20 Published:2010-08-20

摘要: 选用有代表性的两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6个不同的生物农药和化学农药的混配组合对香稻稻纵卷叶螟、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(Bt)+井冈霉素+杀虫双混配组合对两个香稻的病虫害防治效果较佳,对四种病虫害的的防治率都在94%以上,且香稻产量较高。印楝素乳油+苏云金杆菌(Bt)+鱼藤酮乳油+井冈霉素混配组合对培杂软香病虫害的防治效果显著,对四种病虫害的防治率高达94%;印楝素乳油+苏云金杆菌(Bt)+井冈霉素混配组合对桂香占病虫害的防治和增产效果明显,对卷叶螟的防治率为93%-96%,对其他三种病虫害的防治率高达98%。因此,在适当比例情况下,生物农药和化学农药配施防治香稻病虫害效果较好,且具有一定的保产效果。

关键词: 石湖风景区, 石湖风景区, 新农村建设, 村庄改造

Abstract: The control effects of six 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+Bt+validamycin+dimehypo on leaffolder, yellow borer, chilo suppressalis and rice sheath blight of aromatic rice, Pei-zaruanxiang and Gui-xiangzhan were the best and the yield of aromatic rice was higher, control rates of all diseases and insect pests were over 94%. In addition, for Pei-zaruanxiang, the treatment of azadirachtin+Bt+rotenone+validamycin reduced significantly these disease and pests and guaranteed the yield, control rates were all over 94%; for Gui-xiangzhan, the treatment of azadirachtin+Bt+validamycin had the same effects, the control rate of leaffolder was 93%-96%, the rest were up to 98%.