Abstract：
The Indian meal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), is a very common stored-product pest. The mature larvae wander around searching for suitable places to pupate, offering an opportunity to control this pest. We evaluated the efficacy of 5 insecticide dusts: Alpine (0.25% dinotefuran, 95% diatomaceous earth [DE]), CimeXa (92.1% amorphous silica gel), DX13 (100% DE), Tempo (1% cyfluthrin), and Tri-Die (1% pyrethrin, 10% piperonyl butoxide, 40% amorphous silica) against P. interpunctella wandering larvae by allowing larvae to pass 1-inch treated band, expose to treated vinyl tiles for 5 min, and expose to treated harborage (with or without the presence of an untreated harborage). A commercially treated harborage product (Nattaro band) served as a positive control in the exposure to the treated harborage test. Tempo was significantly more effective than other insecticide dusts in the 1-inch band and forced exposure tests but caused only 44% and 54% larvae mortality in the 2 tests. In contrast, CimeXa, Tri-Die, and Tempo caused 84%-89% mortality when the larvae were provided with treated harborages. When both treated and untreated harborages were present, Tempo caused a significantly higher mortality and a lower percentage of emerged adults from larvae than Tri-Die, but not significantly more than CimeXa. Deploying Tempo or CimeXa-treated harborages and/or applying insecticide dust directly into the wall crevices, perimeters of the floor, shipping pallets, and other areas where P. interpunctella larvae hide could be an effective method for the management of the wandering stage of P. interpunctella larvae in storage facilities.
摘要：
印度餐蛾，Plodiainterpunctella（Hübner）（鳞翅目：Pyralidae），是一种非常常见的储存产品害虫。成熟的幼虫四处游荡，寻找合适的地方化脓，提供了控制这种害虫的机会。我们评估了5种杀虫剂粉尘的功效：高山（0.25％dinotfuran，95%硅藻土[DE])，CimeXa(92.1%无定形硅胶),DX13(100%DE),节奏（1%氟氯氰菊酯），和三模具(1%除虫菊酯，10%胡椒基丁醚，40％无定形二氧化硅）通过使幼虫通过1英寸处理的条带，对抗P.interpunctella游荡的幼虫，暴露于处理过的乙烯基瓷砖5分钟，并暴露于经过处理的港口（有或没有未经处理的港口）。商业处理过的港口产品（Nattaro带）在暴露于处理过的港口测试中用作阳性对照。在1英寸波段和强迫暴露试验中，Tempo比其他杀虫剂粉尘有效得多，但在2种试验中只造成44％和54％的幼虫死亡率。相比之下,CimeXa,Tri-Die,当为幼虫提供经过处理的港口时，Tempo造成84％-89％的死亡率。当处理和未处理的港口都存在时，与Tri-Die相比，Tempo引起的死亡率明显更高，幼虫中成年的比例也更低，但不明显超过CimeXa。部署Tempo或CimeXa处理过的港口和/或将杀虫剂粉尘直接施加到墙壁缝隙中，地板的周边，运输托盘，和其他地方的P.interpunctella幼虫隐藏可能是管理存储设施中P.interpunctella幼虫游荡阶段的有效方法。
