Ecotoxicological effects of buprofezin on fecundity, growth, development, and predation of the wolf spider Pirata piratoides (Schenkel).
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.
Deng
Lingling
L
Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Datun Road, Chaoyang, Beijing, 100101, China.
Xu
Muqi
M
Cao
Hong
H
Dai
Jiayin
J
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
D007605:Juvenile Hormones; D013829:Thiadiazines; C083997:buprofezin