Comparison of the effectiveness of chemical and biological agents for the emergency control of Spodoptera frugiperda in the field
Author of the article:YAN Wen-Juan； YANG Shuai；WANG Yong-Qing；ZHENG Qun；ZHANG Zhi-Xiang；XU Han-Hong
Author's Workplace：Key Laboratory of Natural Pesticides and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China；Key Laboratory of Natural Pesticides and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China；Key Laboratory of Natural Pesticides and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China；Key Laboratory of Natural Pesticides and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China；Key Laboratory of Natural Pesticides and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China；Key Laboratory of Natural Pesticides and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
Key Words：Spodoptera frugiperda; insecticides; pesticide screening; control efficacy
Abstract：[Objectives] To determine the relative efficacy of 28 chemical and biological agents for controlling Spodoptera frugiperda in maize (Zea mays L.) fields. [Methods] Entire maize plants at the large trumpet stage were evenly sprayed using conventional spray methods and the number of S. frugiperda larvae on labeled plants determined 1 day before, and 1, 3 and 7, days after, application. [Results] Chemical pesticides were the most effective at controlling S. frugiperda. Biological agents were not as effective, which we suspect is related to their mode of action. [Conclusion] Of the chemical agents evaluated, eight, spinetoram, emamectin benzoate, chlorantraniliprole, cyantraniliprole, methoxyfenozide, cyfluthrin, spinetoram·m-ethoxyfenozide and indoxacarb·methoxyfenozide, were the most effective at controlling S. frugiperda in maize fields.