Basimike M, Mutinga M J
International Centre of Insect Physiology and Ecology, Nairobi, Kenya.
J Med Entomol. 1995 Jul;32(4):428-32. doi: 10.1093/jmedent/32.4.428.
Effects of permethrin-treated screens on the sand fly, Phlebotomus martini Parrot, a vector of visceral leishmaniasis in Kenya, were evaluated after the eighth treatment. Screens treated with 0.50 g/m2 of permethrin 20% emulsifiable concentrate were fitted inside houses and re-treated every 6 mo from August 1989 to December 1993. Before application of the treated screens, a geometric mean of 0.83 P. martini were collected per trap night inside houses, whereas after the eighth treatment only 0.05 sand flies were caught. P. martini abundance was reduced by 88.8%. Analysis of the effects of treated screens on the total sand fly population (all species) indicated that 1.79 sand flies were collected per night per house before deployment of treated screens, whereas 0.16 flies were caught after the eighth treatment. The percentage of sand fly reduction inside treated houses increased with successive treatment of the screens, and a reduction of 81.4% was observed after the eighth treatment. Permethrin-treated screens did not reduce the sand fly engorgement rate inside houses.
在第八次处理后，评估了经氯菊酯处理的纱窗对肯尼亚内脏利什曼病传播媒介——马氏白蛉（Phlebotomus martini Parrot）的影响。用0.50 g/m²的20%氯菊酯乳油处理的纱窗安装在房屋内，并于1989年8月至1993年12月期间每6个月重新处理一次。在安装经处理的纱窗之前，房屋内每个诱捕夜平均捕获0.83只马氏白蛉，而在第八次处理后，仅捕获到0.05只白蛉。马氏白蛉的数量减少了88.8%。对经处理的纱窗对总白蛉种群（所有物种）的影响分析表明，在安装经处理的纱窗之前，每户每晚捕获1.79只白蛉，而在第八次处理后，捕获到0.16只。经处理房屋内白蛉数量的减少百分比随着纱窗的连续处理而增加，在第八次处理后观察到减少了81.4%。经氯菊酯处理的纱窗并未降低房屋内白蛉的饱血率。
