Effects of maximum residue limit of triflumezopyrim exposure on fitness of the red imported fire ant Solenopsis invicta

• Published in: PeerJ (San Francisco, CA) Vol. 7; p. e8241
• Main Authors: Li, Qiting, Zhao, Fei, Li, Jiayi, Tao, QiuHong, Gao, JiaQian, Lu, Yong-Yue, Wang, Lei
• Format: Journal Article
• Language: English
• Published: United States PeerJ. Ltd 10.12.2019; PeerJ, Inc; PeerJ Inc
• Subjects: Aggressiveness; Agricultural Science; Animal Behavior; Behavior; Colony growth; Ecology; Entomology; Experiments; Fire ant; Fire ants; Fitness; Food consumption; Insecticides; Insects; Laboratories; Locomotion; Locusts (Insects); nAChR; Novels; Pesticides; Pesticides regulation; Research methodology; Rice; Solenopsis invicta; Sugar; Toxicology; Triflumezopyrim; Walking; Water; China; Behavior; Fire ant; Colony growth; nAChR; Aggressiveness; Triflumezopyrim
• ISSN: 2167-8359; 2167-8359
• DOI: 10.7717/peerj.8241

The impact of exposure to free feeding concentrations of triflumezopyrim to the red imported fire ant, , in maximum residue tolerances for 56 days was investigated to understand whether triflumezopyrim, a novel neonicotinoid, poses unacceptable risks to the environment. Our results demonstrated that neither 0.5 μg/ml nor 0.2 μg/ml triflumezopyrim have a significant impact on the growth of the colony and their food consumption (sugar water and locusts) during the length of treatment. While both 0.5 μg/ml and 0.2 μg/ml triflumezopyrim improved the grasping ability of , and 0.5 μg/ml not 0.2 μg/ml triflumezopyrim increased their rate of locomotion. In addition, although 0.5 μg/ml and 0.2 μg/ml triflumezopyrim increased their individual aggressiveness index, the probability of the survival of was not impacted by triflumezopyrim treatments in aggressive group encounters. This study suggests that triflumezopyrim did not have a negative impact on the fitness of at 0.5 μg/ml and 0.2 μg/ml exposures.