title: Ecotoxicological effects of buprofezin on fecundity, growth, development, and predation of the wolf spider Pirata piratoides (Schenkel).
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 (LD(50)) 48 h and 10% lethal dosage (LD(10)) 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.
authors.affiliation: Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Datun Road, Chaoyang, Beijing, 100101, China.
authors.forename: Lingling
authors.initials: L
authors.lastname: Deng
authors.forename: Muqi
authors.initials: M
authors.lastname: Xu
authors.forename: Hong
authors.initials: H
authors.lastname: Cao
authors.forename: Jiayin
authors.initials: J
authors.lastname: Dai
mesh_terms: D000818:Animals; D049628:Body Size / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D005247:Feeding Behavior / Q000187:drug effects; D005260:Female; D005298:Fertility / Q000187:drug effects; D007605:Juvenile Hormones / Q000633:toxicity*; D008297:Male; D018811:Maternal Exposure; D010058:Oviposition / Q000187:drug effects; D010063:Ovum / Q000187:drug effects / Q000502:physiology; D011235:Predatory Behavior / Q000187:drug effects; D013112:Spiders / Q000033:anatomy & histology / Q000187:drug effects* / Q000502:physiology; D013829:Thiadiazines / Q000633:toxicity*; D018675:Toxicity Tests
chemical_list: D007605:Juvenile Hormones; D013829:Thiadiazines; C083997:buprofezin