Frances S P, Watson K, Constable B G
Australian Army Malaria Institute, Gallipoli Barracks, Enoggera, Queensland 4052, Australia.
J Am Mosq Control Assoc. 2003 Sep;19(3):275-8.
In this laboratory study, we applied 3 formulations of permethrin (Peregin 500 EC, Dragnet 500 EC, and Dragnet 100 ME) and 2 of bifenthrin (Biflex 10 ME and Talstar 80 SC) to swatches of Australian military shirt fabric. The knockdown and mortality of Anopheles farauti and Aedes aegypti after exposure to treated fabrics were compared. The mortality of An. farauti exposed to permethrin-treated swatches for 3 min in World Health Organization test kits was 94.2-100% after initial treatment and fell to < 28% after 2 cold water washes. and knockdown was < 20% after 3 washes. The mortality of An. farauti exposed to bifenthrin-treated swatches was initially 100% and remained > 55% after 3 washes, whereas knockdown was < 25% after 2 washes. Mortality of Ae. aegypti exposed by tarsal contact to permethrin- and bifenthrin-treated fabrics was 84.8-100% prior to washing and fell to < 21% and < 40%, respectively, after 1 cold water wash. The ability of Ae. aegypti to obtain a blood meal through treated fabrics was variable, and a small percentage (0-6.1%) of mosquitoes obtained a blood meal through fabrics after initial treatment. The effect of cold water washing on the persistence of both chemicals in fabric by chemical assays showed that between 58% and 66% of both chemicals was lost from the test fabric after a single wash.
在这项实验室研究中，我们将3种氯菊酯制剂（派利净500乳油、德雷格奈特500乳油和德雷格奈特100微乳剂）以及2种联苯菊酯制剂（毕伏立克斯10微乳剂和高效氯氟氰菊酯80悬浮剂）应用于澳大利亚军队衬衫面料样本上。比较了致倦库蚊和埃及伊蚊接触经处理面料后的击倒率和死亡率。在世界卫生组织测试试剂盒中，致倦库蚊接触氯菊酯处理的样本3分钟后，初次处理后的死亡率为94.2%-100%，经过2次冷水洗涤后降至<28%，3次洗涤后击倒率<20%。致倦库蚊接触联苯菊酯处理样本后的死亡率最初为100%，3次洗涤后仍>55%，而2次洗涤后击倒率<25%。埃及伊蚊通过跗节接触氯菊酯和联苯菊酯处理的面料后的死亡率在洗涤前为84.8%-100%，经过1次冷水洗涤后分别降至<21%和<40%。埃及伊蚊通过经处理面料获取血餐的能力各不相同，一小部分（0%-6.1%）蚊子在初次处理后通过面料获取了血餐。通过化学分析评估冷水洗涤对两种化学物质在面料中持久性的影响，结果表明，单次洗涤后，两种化学物质在测试面料中的残留量均损失了58%-66%。
