Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (18): 153-158.doi: 10.11924/j.issn.1000-6850.casb2020-0435

Special Issue: 植物保护 马铃薯

Previous Articles     Next Articles

Insecticide Controlling Sweet Poato Weevil: Selection and Field Efficacy

Xu Jin1(), Su Zhiping1, Su Huirong2, Zhu Hongbo1, Cheng Shengyong3, Wu Zhengwei1()   

  1. 1College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjang, Guangdong 524088
    2Zhanjiang Agriculture Technology Popularizing Center, Zhanjang Guangdong 524038
    3Zhanjiang Agricultural Science Academy, Zhanjiang Guangdong 524094
  • Received:2020-09-08 Revised:2020-12-18 Online:2021-06-25 Published:2021-07-13
  • Contact: Wu Zhengwei E-mail:xujin@gdou.edu.cn;zhengwei_wu@126.com

Abstract:

To select effective, economical and safe insecticides suitable for the control of sweet potato weevil in tropical areas such as Zhanjiang, the toxicity indoor test, pot experiment and field trial of 12 insecticides were carried out on the adults of sweet potato weevil. The results showed that the insecticides with better control effects on sweet potato weevil in Zhanjiang were 3.2% abamectin EC, 20% tebufenozide SC, 5% acetamiprid EC and 16% tebufenozide·indoxacarb EC. The control effects of 3.2 % abamectin EC and 20% tebufenozide SC in pot experiment at 72 h were 97.78% and 91.59%, respectively. After 4 days of field trial, the control effects of 3.2% abamectin EC and 20% tebufenozide SC reached 91.01% and 92.26%, respectively, and still reached 70.76% and 67.84% after 8 days. 3.2% abamectin EC and 20% tebufenozide SC exhibit better control effect and persistence on the adult of sweet potato weevil, which are suitable for field control in tropical areas such as Zhanjiang.

Key words: sweet potato weevil, toxicity indoor test, control effect, pot experiment, field trial

CLC Number: