Preference and Toxicity of Sulfoxaflor, Flupyradifurone, and Triflumezopyrim Bait against the Fire Ant <i>Solenopsis invicta</i> (Hymenoptera: Formicidae) and Their Efficacy under Field Conditions
Jiefu Deng,
Mei Yi,
Mingrong Liang,
Delong Tan,
Weihui Bai,
Cai Wang,
Guiying Liu,
Yijuan Xu,
Yixiang Qi,
Yongyue Lu,
Lei Wang
Affiliations
Jiefu Deng
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Mei Yi
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Mingrong Liang
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Delong Tan
Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences, Guangzhou 510642, China
Weihui Bai
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Cai Wang
College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
Guiying Liu
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Yijuan Xu
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Yixiang Qi
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Yongyue Lu
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
Lei Wang
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
The red imported fire ant Solenopsis invicta Buren (Hymenoptera: Formicidae) is native to South America; however, its introduction to other countries has caused serious biodiversity, agricultural, and public health problems. As toxic bait is an effective method to control fire ant populations, the aim of this study was to determine the most effective concentration of sulfoxaflor, flupyradifurone, and triflumezopyrim as ingredients for baits against S. invicta under laboratory and field conditions. Sulfoxaflor, flupyradifurone, and triflumezopyrim had no effect on the feeding behavior of the fire ants. However, they significantly reduced the climbing, walking, and arrest abilities of the fire ant workers after 10 days of treatment, and insecticides were horizontally transferred from workers to alates or larvae. Specifically, sulfoxaflor and triflumezopyrim at 0.05% concentration were the most effective in exterminating fire ants. Sulfoxaflor and triflumezopyrim are nonrepellent and effective insecticides against S. invicta.
