Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2010, Vol. 26 ›› Issue (16): 272-276.

Special Issue: 植物保护 水稻

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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

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%.