Abstract
The toxicological effects of buprofezin, an insect growth regulator, on the fecundity, development, and pest control potential of the wolf spider Pirata piratoides (Schenkel) (Araneae: Lycosidae) were investigated in the laboratory. It was shown that buprofezin had low toxicity to P. piratoides and that the median lethal dosage (LD50) 48 h and 10% lethal dosage (LD10) after topical application for female spiders were 653 and 316 mg buprofezin/mg fresh weight of spider, respectively. Buprofezin significantly reduced the percent hatching of spiders’ eggs but had only a slight effect on egg production. No negative effects on the development and growth were observed. However, spider predation rates were strongly affected: Insecticide-treated females predated on fewer prey than the controls, and their predation rate did not recover even 5 days after insecticide application. This indicated that their pest control potential might be influenced by buprofezin, and the use of buprofezin in biological control of insects is discussed.
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Acknowledgments
This research was supported by the Innovation Program of the Chinese Academy of Sciences (No. KSCX2-SW-128), the National Natural Science Foundation of China (No. 30370224), and the Key Project of the Chinese Academy of Sciences (No. KZCX1-SW-12). The authors would like to thank Professor John Hodgkiss of The University of Hong Kong for his assistance with English.
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Deng, L., Xu, M., Cao, H. et al. Ecotoxicological Effects of Buprofezin on Fecundity, Growth, Development, and Predation of the Wolf Spider Pirata piratoides (Schenkel). Arch Environ Contam Toxicol 55, 652–658 (2008). https://doi.org/10.1007/s00244-008-9149-y
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DOI: https://doi.org/10.1007/s00244-008-9149-y