Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (12): 124-130.doi: 10.11924/j.issn.1000-6850.casb2021-0618

Special Issue: 生物技术 水产渔业 玉米

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Six Insecticides Against Spodoptera frugiperda in Maize: Field Application Evaluation in Guangdong

LUO Zhenya(), LIN Shaoyuan, QUAN Linfa, CHI Yanyan, CHEN Bingxu, XU Shu()   

  1. Research Institute of Plant Protection, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640
  • Received:2021-06-21 Revised:2021-09-13 Online:2022-04-25 Published:2022-05-18
  • Contact: XU Shu E-mail:670156860@qq.com;xushugcz@163.com

Abstract:

In order to screen low-toxic and environment-friendly insecticides with high lethal effect on Spodoptera frugiperda, the larvae of S. frugiperda in maize were used as materials, field efficacy trials of six insecticides were carried out in 2020 and 2021. The results showed that the control efficiency of 18% tetraniliprole SC at 225 mL/hm2, 8% methylamino abamectin·lufenruon SC at 450 g/hm2 and 9% methylamino abamectin·indoxacarb SC at 450 g/hm2 was 69.52%-81.01% one day after application, and the control efficiency reached the peak (90.22%-96.05%) 3 days after treatment, which was significantly better than that of the other three insecticides. The control efficiency of 14% chlorantraniliprole·lambda-cyhalothrin ZC at 450 mL/hm2 and 6% abamectin·chlorantraniliprole SC at 750 mL/hm2 reached the peak 7 days after application, which was 85.23%-92.74%, obviously better than that of the other insecticides. All the above five insecticides have good control efficiency and durability, and the control efficiency is better than that of emamectin benzoate, so they can be used in maize field to control S. frugiperda.

Key words: maize, Spodpotera frugiperda, chemical control, control efficiency, field trial

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