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Efficacy of contact insecticides for the control of the lesser mealworm, Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae)
Journal of Stored Products Research ( IF 2.7 ) Pub Date : 2021-05-18 , DOI: 10.1016/j.jspr.2021.101817
Sofronios Zafeiriadis , Maria K. Sakka , Christos G. Athanassiou

The lesser mealworm, Alphitobius diaperinus is a common pest of poultry farming facilities, the presence of which harbors diseases and economic loss, but it also occurs in different types of storage and processing facilities, such as feed mills. In this study, we evaluated the efficacy of three contact insecticides, alpha cypermethrin, spinosad, and pirimiphos methyl, against adults and larvae of A. diaperinus in a series of two bioassays. In the first series of bioassays, mortality rates were determined after 1, 3, 7 and 14 days of exposure on concrete dishes treated with the above insecticides. The results show that all three insecticides were effective for the control of this species, since after 14 days of exposure mortality exceeded 90% for both adults and larvae. Spinosad had a definite advantage over the other two insecticides, providing complete (100%) insect mortality after 14 days of exposure. In the second series of bioassays, the presence of food was evaluated to determine the effects of immediate and delayed mortality. We found that the presence of food in the concrete dishes decreased the levels of delayed mortality of the exposed individuals. All three insecticides showed an increased level of delayed mortality, either with or without food, but mortality did not reach 100% for any of the combinations tested. These results present a valid series of data for creating a standardized means of control against this pest that has beset poultry facilities for years.



中文翻译:

接触杀虫剂对控制小粉虫Alphitobius diaperinus(Panzer)的功效(鞘翅目:Tenebrionidae)

较小的粉虱(Alphitobius diaperinus)是家禽养殖设施的常见害虫,存在病害和经济损失,但它也发生在不同类型的存储和加工设施中,例如饲料厂。在这项研究中,我们评估了三种接触杀虫剂α氯氰菊酯,多杀菌素和甲基吡咯烷磷对成虫和幼虫A. diaperinus的功效在一系列的两种生物测定中。在第一批生物测定中,在暴露于用上述杀虫剂处理过的混凝土皿上1、3、7和14天后确定死亡率。结果表明,所有三种杀虫剂均能有效控制该物种,因为暴露14天后,成虫和幼虫的死亡率均超过90%。Spinosad相对于其他两种杀虫剂具有明显的优势,暴露14天后可提供完全(100%)的昆虫死亡率。在第二系列的生物测定中,评估了食物的存在,以确定立即死亡和延迟死亡的影响。我们发现混凝土碟中食物的存在降低了暴露个体的延迟死亡水平。所有三种杀虫剂均显示出较高的延迟死亡水平,不管有没有食物,但是对于任何测试的组合,死亡率都没有达到100%。这些结果提供了一系列有效的数据,以创建一种标准化的防治这种害虫的方法,这种害虫已经困扰了家禽设施多年。

更新日期:2021-05-19
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