In the present study, the residual efficacy of an alpha-cypermethrin-coated net (Carifend®, BASF AG, Ludwigshafen, Germany) was evaluated in laboratory studies against four species of stored product insects. The insecticide-treated net was fitted into the bottom of plastic petri dishes, whereas two other sets of dishes (without net, with net without insecticide) served as controls. The insects used in the bioassays were Sitophilus oryzae, Tribolium confusum, Oryzaephilus surinamensis and Prostephanus truncatus. Adults of these species were exposed every 30 d for a total of 90 consecutive days in total. Based on the results, the insecticidal effect of the net remained at high levels during the entire experimental period, indicating its high residual effect. Among the species tested, T. confusum was the least susceptible. Carifend® can be a valuable tool for the protection of stored products against storage insects, and its use can be further examined towards this direction.

在本研究中，在实验室研究中评估了 α-氯氰菊酯涂层蚊帐（Carifend®, BASF AG, Ludwigshafen, Germany）对四种储存产品昆虫的残留功效。杀虫剂处理过的网被安装在塑料培养皿的底部，而另外两套培养皿（没有网，有网没有杀虫剂）作为对照。用于生物测定的昆虫是Sitophilus oryzae , Tribolium confusum , Oryzaephilus surinamensis和Prostephanus truncatus 。. 这些物种的成虫每 30 天暴露一次，总共连续 90 天。结果表明，在整个试验期间，蚊帐的杀虫效果一直保持在较高水平，说明其残留效果较高。在测试的物种中，T. confusum是最不敏感的。Carifend® 可以成为保护储存产品免受储存昆虫侵害的宝贵工具，可以朝这个方向进一步研究其用途。