开发基于印楝的驱避剂以对抗苏格兰高地咬人蠓库蠓。

Toward development of neem-based repellents against the Scottish Highland biting midge Culicoides impunctatus.

作者信息

Blackwell A, Evans K A, Strang R H C, Cole M

机构信息

Centre for Tropical Veterinary Medicine, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Veterinary Centre, Roslin, Midlothian, UK.

出版信息

Med Vet Entomol. 2004 Dec;18(4):449-52. doi: 10.1111/j.0269-283X.2004.00515.x.

DOI:10.1111/j.0269-283X.2004.00515.x

PMID:15642014

Abstract

Oil of neem, from the tree Azadirachta indica A. Juss (Meliaceae), was evaluated for repellent and antifeedant activity against Culicoides biting midges (Diptera: Ceratopogonidae), by three complementary methods with serial dilutions. Electroantennograms revealed the sensitivity of Culicoides nubeculosus (Meigen) females to neem > or = 0.10%. Culicoides impunctatus Goetghebuer females were repelled by > or = 1% in a Y-tube olfactometer, Using a membrane feeder for wild-caught parous females of C. impunctatus, the proportion blood-feeding was significantly reduced by topical applications of neem oil > or = 0.10% concentrations, with blood-feeding completely prevented by > or =1%. On the basis of these response data, we developed 2% neem-based formulations for personal protection against biting midges.

摘要

印楝（Azadirachta indica A. Juss，楝科）树的印楝油，通过三种采用系列稀释的互补方法，对蠓科吸血蠓（双翅目：蠓科）进行了驱避和拒食活性评估。触角电图显示，库蠓（Culicoides nubeculosus (Meigen)）雌虫对印楝油的敏感度≥0.10%。在Y型嗅觉仪中，≥1%的印楝油对刺螫库蠓（Culicoides impunctatus Goetghebuer）雌虫具有驱避作用。使用膜饲器对野外捕获的已产卵的刺螫库蠓雌虫进行试验，局部涂抹≥0.10%浓度的印楝油可显著降低吸血比例，≥1%的印楝油可完全阻止其吸血。基于这些反应数据，我们开发了2%的印楝基配方用于个人防护以抵御吸血蠓。