不同措施全程防控南方水稻黑条矮缩病效果试验

    Control efficacy of different measures in the whole course onrice black-streaked dwarf disease in south China

    • 摘要: 2014年顺昌县开展不同措施全程防控水稻南方黑条矮缩病效果试验,结果表明:秧田期30目防虫网覆盖育秧、秧苗移栽前3 d和插秧后10 d每667 m2喷施30%毒氟磷可湿性粉剂60 g+25%吡蚜酮可湿性粉剂24 g对南方水稻黑条矮缩病的防控效果最好,防效达90.48%,水稻增产率达25.75%。该防控措施可在南方水稻黑条矮缩病发生区大面积推广应用。

       

      Abstract: Trials of control efficacy for the rice black-streaked dwarf disease in south China were conducted in Shunchang County with different control measures in the whole course in 2014. The results showed that the best control efficacy was received when controlled by covering 30 mesh fly net in rice seedling stage and spraying 60 g 30% Dufulin WP and 24 g 25% Pymetrozine WP per 667 m2 three days before transplanting and ten days after transplanting. The control efficacy ratio reached 90.48%, and the rice yield was increased by 25.75%, which indicated that the control measure in the whole course for rice black-streaked dwarf disease could be widely popularized and applicated.

       

    /

    返回文章
    返回