Sublethal Effects of Thiamethoxam on the Demographic Parameters of Myzus persicae (Hemiptera: Aphididae)

• DOI: 10.1093/jee/tox112
• Publication Date: 2017-05-11T14:07:18Z
• Authors: Pan Wang; Li-Lin Zhou; Fan Yang; Mang Li; Xiao-Ming Liu; Yong Wang; Chao-Liang Lei; Sheng-Yun Si
• Keywords: Myzus persicae

The green peach aphid, Myzus persicae Sulzer (Hemiptera: Aphididae), is an important sap-sucking pest of many crops, including Chinese cabbage, Brassinca oleracea L. neonicotinoid insecticide thiamethoxam has been used as effective to control M. in cabbage fields. In this study, we assessed the effects sublethal concentrations on demographic parameters persicae. leaf-dip bioassays, showed a relatively high toxicity against with LC50 6.80 mg liter-1. duration preadult stage was not significantly affected bioassay. Additionally, longevity and adult preoviposition period were by thiamethoxam. However, increased fecundity (LC10) prolonged total (LC40). Consequently, finite rate increase (λ) intrinsic (rm) aphids exposed LC40 lower than those aphids, whereas net reproductive (R0) higher, generation time (T) population doubling (DT) longer treated group. Based these results, hormesis induced persicae, growth negatively at higher Therefore, our study indicated that possible require further develop optimized integrated management strategies.