Faculty of Science, Department of Biology, Akdeniz University, Antalya 07070, Turkey.
Laboratory Animals Application and Research Centre, Akdeniz University, Antalya 07070, Turkey.
J Econ Entomol. 2022 Aug 10;115(4):1303-1309. doi: 10.1093/jee/toac100.
Alphitobius diaperinus Panzer (Coleoptera: Tenebrionidae) is an insect pest in poultry production systems. This insect has developed resistance to many chemical insecticides. As an alternative to chemicals, entomopathogenic nematodes (EPNs) are one of the most commonly used agents against several pest arthropods. The pathogenicity of the EPN Steinernema carpocapsae Weiser on four field strains of lesser mealworm, A. diaperinus, from Turkey was studied. In the experiments, larvae of A. diaperinus were found to be more sensitive than adults to S. carpocapsae infection. In terms of LC50 values in both larval and adult insects, Balikesir strain was found to be the most susceptible, Manisa strain the most resistant. The calculated LC50 values for adults were 85.9, 205.6, 135.4, and 418.8 IJs/ml, and for larvae 31.2, 39.8, 34.8, and 70.9 IJs/ml for the Balikesir, Canakkale, İzmir, and Manisa strains, respectively. This is the first report about the pathogenicity of EPNs against larvae and adults of lesser mealworm A. diaperinus strains from Turkey. We conclude that S. carpocapsae can be used as a control agent for lesser mealworms.
粉纹夜蛾（鞘翅目：拟步甲科）是家禽生产系统中的一种昆虫害虫。这种昆虫已经对许多化学杀虫剂产生了抗性。作为化学物质的替代品，昆虫病原线虫（EPN）是对抗几种害虫节肢动物最常用的制剂之一。研究了捕食线虫真菌斯氏线虫对来自土耳其的四种粉纹夜蛾田间品系（A. diaperinus）的致病力。在实验中，发现粉纹夜蛾幼虫比成虫对 S. carpocapsae 的感染更为敏感。在幼虫和成虫的 LC50 值方面，发现 Balikesir 菌株最敏感，Manisa 菌株最具抗性。成虫的计算 LC50 值分别为 85.9、205.6、135.4 和 418.8 IJs/ml，幼虫的计算 LC50 值分别为 31.2、39.8、34.8 和 70.9 IJs/ml，分别对应于 Balikesir、Canakkale、伊兹密尔和 Manisa 菌株。这是首次报道关于捕食线虫真菌对来自土耳其的粉纹夜蛾幼虫和成虫的致病性。我们得出结论，斯氏线虫可以用作粉纹夜蛾的控制剂。
