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首页> 外文期刊>Journal of Medical Entomology >New Mosquitocide Derived From Volcanic Rock
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New Mosquitocide Derived From Volcanic Rock

机译：新的蚊剂来自火山岩

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Malaria, dengue, yellow fever, and the Zika and West Nile Viruses are major vector-borne diseases of humans transmitted by mosquitoes. According to the World Health Organization, over 80% of the world's population is at risk of contacting these diseases. Insecticides are critical for mosquito control and disease prevention, and insect insecticide resistance is on the increase; new alternatives with potentially different modes of action from current chemistry are needed. During laboratory screening of industrial minerals for insecticide activity against Anopheles gambiae (Giles) (Diptera: Culicidae) we discovered a novel mechanical insecticide derived from volcanic rock (MIVR) with potential use as a residual spray. In modified WHO cone tests, the time to 50% mortality was 5 h under high-humidity conditions. MIVR treated surfaces demonstrated no mosquito repellency. In field studies where the mechanical insecticide was applied to wood using standard spray equipment and then placed under stilt homes in New Orleans, LA, the residual activity was >80% after 9 wk against Aedes aegypti (L.) (Diptera: Culicidae), Aedes albopictus (Skuse) (Diptera: Culicidae) and Culex quinquefasciatus (Say) (Diptera: Culicidae) (with similar efficacy to a positive chemical insecticide control). In scanning electron microcopy studies, the MIVR was transferred as particles mostly to the legs of the mosquito. This wettable powder made from volcanic rock is a mechanical insecticide representing a potential new mode of action different from current chemistry for mosquito control and is in commercial development under the trade name Imergard (TM) WP as an indoor and outdoor residual spray.
机译：疟疾、登革热、黄热病、寨卡病毒和西尼罗河病毒是由蚊子传播的人类主要媒介传播疾病。根据世界卫生组织的数据，超过80%的世界人口有接触这些疾病的风险。杀虫剂对蚊虫控制和疾病预防至关重要，昆虫对杀虫剂的抗药性正在增加；需要新的替代品，其作用模式可能与当前化学不同。在实验室筛选抗冈比亚按蚊（Giles）杀虫剂活性的工业矿物（双翅目：蚊科）期间，我们发现了一种来自火山岩（MIVR）的新型机械杀虫剂，可能用作残留喷雾。在改良WHO锥形试验中，在高湿度条件下，死亡率达到50%的时间为5小时。MIVR处理过的表面没有驱蚊效果。在现场研究中，使用标准喷洒设备将机械杀虫剂喷洒到木材上，然后将其放置在洛杉矶新奥尔良的高跷房屋下，在对抗埃及伊蚊（L.）9周后，残留活性>80%（双翅目：蚊科），白纹伊蚊（Skuse）（双翅目：库蚊科）和致倦库蚊（Say）（双翅目：库蚊科）（与阳性化学杀虫剂对照效果相似）。在扫描电子显微镜研究中，MIVR主要作为颗粒转移到蚊子的腿上。这种由火山岩制成的可湿性粉末是一种机械杀虫剂，代表了一种潜在的新作用模式，不同于当前的蚊虫控制化学，目前正在商业开发中，商品名为Imergard（TM）WP，作为室内和室外残留喷雾。

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