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不同药剂对黔西县稻纵卷叶螟的田间防效

Agricultural Technology Service(2020)

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Abstract
为筛选出防治稻纵卷叶螟效果较好的药剂应用于黔西县水稻生产,进行了40%三唑磷、1.8%阿维菌素等4药剂田间防治药效试验.结果表明:化学农药40%丙溴磷、40%三唑磷表现出很好的速效性和防效,药后7 d的防效分别达89.84%和91.77%;生物农药1.8%阿维菌素的防效和速效性好于0.3%苦参碱,药后7 d的防效分别为81.71%和71.65%.在稻纵卷叶螟发生高峰前期宜选择使用1.8%阿维菌素,大爆发期不宜用生物农药防治.
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