藜芦碱对棉蚜防治效果分析

doi:10.6048/j.issn.1001-4330.2019.01.006

摘要/Abstract

摘要： 【目的】 研究植物源农药藜芦碱对棉蚜的防治效果,为施用该农药防治棉蚜提供依据。【方法】 以藜芦碱高、中、低3个剂量作为处理药剂,吡虫啉作为对照药剂,分别在药后1、3、7和14 d调查棉蚜虫口数,分析棉蚜防治效果。【结果】 在药后1、3、7和14 d时,藜芦碱低剂量防效分别为44.05%、73.91%、81.20%和82.24%;藜芦碱中剂量防效分别为56.57%、76.08%、82.01%和82.24%;藜芦碱高剂量防效分别为65.69%、80.02%、85.53%和87.22%;吡虫啉防效分别为60.03%、72.40%、77.05%和76.44%。药后1 d时藜芦碱中等和高等剂量防效和吡虫啉相近,在药后3 、7 和14 d时藜芦碱低、中等和高剂量防效均好于吡虫啉。【结论】 0.5%藜芦碱植物源农药持效期长,对棉蚜有很好的防治效果,使用量　85 g/667m²。

关键词: 藜芦碱; 棉蚜; 防治效果

Abstract: 【Objective】 To evaluate the control effect of Veratridine on cotton Aphis gossypii Glover and provide a foundation for using the pesticide to control the pest reasonably.【Method】 Under high, medium and low dose of Veratridine as treatment pesticides, and Imidacloprid as control pesticides, the cotton aphid number were examined after spraying pesticides 1 day, 3 days, 7 days and 14 days,respectively, and the control effects of Veratridine on cotton aphid were analyzed.【Result】 After spraying pesticides 1 day, 3 days, 7 days and 14 days, the control effect of low dose of b Veratridine was 44.05%, 73.91%, 81.20% and 82.24%, respectively; the control effect of medium dose of Veratridine was 556.57%, 76.08%, 82.01% and 82.24%, respectively;the control effect of high dose of Veratridine was 65.69%, 80.02%, 85.53% and 87.22%, respectively; the control effect of Imidacloprid was 60.03%, 72.40%, 77.05% and 76.44%, respectively. The results showed that control effect of medium and high dose of Veratridine was close to those of Imidacloprid after spraying 1 d, and the control effects of low, medium and high dose of Veratridine were better than those of Imidacloprid after spraying pesticides 3 d, 7 d and 14 d.【Conclusion】 0.5% Veratridine pesticides has a lasting validity period and a better control effect on cotton aphid. It is recommended that the usage amount of 0.5% Veratridine pesticides is 85 g/acre.

Key words: veratridine; Aphis gossypii; control effect

中图分类号:

S435.662⁺.2

王冬梅,戴爱梅,刘新兰,李彩虹. 藜芦碱对棉蚜防治效果分析[J]. 新疆农业科学, 2019, 56(1): 46-51.

WANG Dong-mei, DAI Ai-mei, LIU Xin-lan, LI Cai-hong. Assessment on Control Effect of Veratridine on Cotton Aphid[J]. Xinjiang Agricultural Sciences, 2019, 56(1): 46-51.

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