| 5%除虫菊素乳油对孔雀竹芋红蜘蛛的防效 |
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| 引用本文： | 李绍萍,赵明方,陈武荣,耿开友.5%除虫菊素乳油对孔雀竹芋红蜘蛛的防效[J].北方园艺,2012(4):134-135. |
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| 作者姓名： | 李绍萍 赵明方 陈武荣 耿开友 |
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| 作者单位： | 昆明学院,云南昆明,650214 |
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| 摘 要： | 采用800、1 000、1 200、1 500倍4种浓度的5%除虫菊素乳油对孔雀竹芋红蜘蛛进行防效试验。结果表明:800、1 000倍液5%除虫菊素乳油对孔雀竹芋红蜘蛛的防效浓度效果最好,防效可达90%以上,能有效防治孔雀竹芋红蜘蛛;且5%除虫菊素乳油药后3d和药后5d对孔雀竹芋红蜘蛛的防治效果比药后1d略有下降,药后7d其防效大幅下降,降到80%以下,因此,建议生产中施药间隔时间以7d为宜。
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| 关 键 词： | 孔雀竹芋红蜘蛛 %除虫菊素乳油 防效 |
Efficacy of 5 ％ Pyrethrin on Tetranychus cinnbarinus of Calathea makoyana |
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| LI Shao-ping
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ZHAO Ming-fang
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CHEN Wu-rong
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GENG Kai-you.Efficacy of 5 ％ Pyrethrin on Tetranychus cinnbarinus of Calathea makoyana[J].Northern Horticulture,2012(4):134-135. |
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| Authors: | LI Shao-ping ZHAO Ming-fang CHEN Wu-rong GENG Kai-you |
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| Institution: | (College of Horticulture,Kunming University,Kunming,Yunnan 650214) |
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| Abstract: | Efficacy tests on Tetranychus cinnbarinus of Calathea makoyana for 5% pyrethrin in concentrations of 800 folds,1 000 folds,1 200 folds and 1 500 folds were studied.The results showed that best effect,which was over 90%,appeared with concentrations of 800 folds to 1 000 folds,however the results on 3 d and 5 d were declined comparing with 1 d after application,and the effect dropped drastically,which was not up to 80% on 7 d.Therefore,an interval of 7 d was suggested in practice. |
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| Keywords: | Tetranychus cinnbarinus of Calathea makoyana 5% pyrethrin efficacy |
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