北方农业学报 ›› 2023, Vol. 51 ›› Issue (5): 62-66.doi: 10.12190/j.issn.2096-1197.2023.05.06

• 植物保护 · 园艺 • 上一篇    下一篇

4种植物源农药对红花指管蚜的室内毒力测定及田间防效

谷清义, 刘林东, 宋海洋, 段鸿斌, 张耀洲, 叶润, 孙伟, 乔新荣   

  1. 信阳农林学院,河南 信阳 464000
  • 收稿日期:2023-08-23 出版日期:2023-10-20 发布日期:2024-01-04
  • 通讯作者: 乔新荣(1972—),女,副教授,博士,主要从事农药毒理方面的研究工作。
  • 作者简介:谷清义(1982—),男,助教,硕士,主要从事生物农药研发及应用方面的研究工作。
  • 基金资助:
    2021年度河南省高等学校重点科研项目(21B210009);信阳农林学院青年教师科研基金项目(QN2021060);河南省科技攻关项目(222102110247)

Indoor toxicity measurement and field control efficacy of four plant derived pesticides on Uroleucon gobonis

GU Qingyi, LIU Lindong, SONG Haiyang, DUAN Hongbin, ZHANG Yaozhou, YE Run, SUN Wei, QIAO Xinrong   

  1. Xinyang Agriculture and Forestry University,Xinyang 464000,China
  • Received:2023-08-23 Online:2023-10-20 Published:2024-01-04

摘要:

【目的】通过测定4种植物源农药对红花指管蚜的室内毒力及田间防效,筛选出防治效果较好的药剂。【方法】以50%吡蚜酮WG为对照药剂,采用叶片浸渍法测定0.6%苦参碱AS、1.5%除虫菊素EW、6.0%鱼藤酮ME、半夏乙醇提取物4种植物源农药对红花指管蚜的室内毒力,并采用叶片喷雾法进行田间防效测定。【结果】药后3 d,0.6%苦参碱AS、1.5%除虫菊素EW、6.0%鱼藤酮ME和半夏乙醇提取物的LC50分别为0.016、6.653、9.173 和30.931 mg/L,对照药剂50%吡蚜酮WG的LC50为24.786 mg/L,0.6%苦参碱AS、1.5%除虫菊素EW、6.0%鱼藤酮ME的毒力显著高于对照药剂(P<0.05)。0.6%苦参碱AS 400倍液在药后1、7 d的田间防效分别为76.81%和96.39%,速效性和持效性较好;1.5%除虫菊素EW 150倍液和6.0%鱼藤酮ME 500倍液在药后7 d的田间防效分别为88.84%和88.37%,与对照药剂50%吡蚜酮WG 750倍液的87.29%防效相当。【结论】在红花指管蚜发生高峰期可选用0.6%苦参碱AS进行防治,后期可选用1.5%除虫菊素EW或6.0%鱼藤酮ME,3种植物源药剂可推广应用于红花指管蚜的防治。

关键词: 植物源农药, 红花指管蚜, 室内毒力测定, 田间防效

Abstract:

【Objective】Evaluate the indoor toxicity and field control efficacy of 4 plant derived pesticides on Uroleucon gobonis to screen for pesticides with better control effect.【Methods】Using 50% pymetrozine WG as control agent,the indoor toxicity of 4 plant derived pesticides,0.6% matrine AS,1.5% pyrethroid EW,6.0% rotenone ME,and Pinellia ternata ethanol extract to Uroleucon gobonis was determined by leaf impregnation method. The field control efficacy was determined by leaf spray.【Results】3 d after treatment,the LC50 of 0.6% matrine AS,1.5% pyrethroid EW,6.0% rotenone ME,and Pinellia ternata ethanol extract were 0.016,6.653,9.173,and 30.931 mg/L,respectively. While the LC50 of control agent 50% pymetrozine WG was 24.786 mg/L. The toxicity of 0.6% matrine AS,1.5% pyrethroid EW,and 6.0% rotenone ME were significantly higher (P<0.05) than the control. After 1 d and 7 d treatment,the field control efficacy of 0.6% matrine AS 400 times diluted solution was 76.81% and 96.39%,respectively,indicating rapid and sustained efficacy. The field control efficacy of 1.5% pyrethroid EW 150 times diluted solution and 6.0% rotenone ME 500 times diluted solution 7 d after treatment was 88.84% and 88.37%,similar to the 87.29% filed control efficacy of the control agent 50% pirimid WG 750 times diluted solution.【Conclusion】0.6% matrine AS could be used for the prevention and control of Uroleucon gobonis in the peak infection period,while 1.5% pyrethroid EW and 6.0% rotenone ME could be used in the subsequent period. All three plant derived pesticides could be promoted and applied in the prevention and control of Uroleucon gobonis.

Key words: Plant derived pesticide, Uroleucon gobonis, Indoor toxicity measurement, Field control efficacy

中图分类号: 

  • S435.672