Evaluation of permethrin-impregnated mosquito-nets against mosquitoes in China.

Abstract

In Yishan County, Guangxi Province, China, where malaria and Brugian filariasis are transmitted by vectors belonging to the Anopheles hyrcanus Pallas group, a study was conducted from June to November 1986 to evaluate the effectiveness of permethrin-impregnated mosquito bednets to reduce man/vector contact. In three experimental villages a total of 246 mosquito nets were treated with permethrin EC at a dosage of 0.5 g/m2. Control bioassays (1 h exposure) of treated nets gave up to 100% mortality of Armigeres subalbatus (Coquillett), Anopheles sinensis Wiedemann and Culex tritaeniorhynchus Giles for up to 19 weeks. During 5 months evaluation in the villages, permethrin-impregnated mosquito-nets reduced the number of mosquitoes found inside nets by 99.3% for Culex quinquefasciatus Say, by 94.4% for Anopheles sinensis Wiedemann and by 75% for Anopheles lesteri anthropophagus Xu & Feng. This measure could thus be considered an appropriate means of controlling vectors in villages.

• Authors: J J Xu, M L Zao, X F Luo, R G Geng, S X Pan, S Y Liu
• Journal: Medical and veterinary entomology (Med Vet Entomol) Vol. 2 Issue 3 Pg. 247-51 (Jul 1988) ISSN: 0269-283X [Print] England
• PMID: 2908784 (Publication Type: Journal Article)

Chemical References

• Insecticides
• Pyrethrins
• Permethrin

Topics

• Animals
• Bedding and Linens
• China
• Culicidae
• Female
• Humans
• Insect Vectors
• Insecticides
• Mosquito Control (methods)
• Permethrin
• Pyrethrins