Cengiz Aysegul, Polat Burak, Kokten Sevval Kahraman, Aslan Bıckı Ummuhan, Calıskan Cansu, Koc Samed, Oz Emre, Kocaoglu-Cenkci Serap, Tufan-Cetin Ozge, Cetin Huseyin
Department of Biology, Faculty of Science, Akdeniz University, 07070 Antalya, Türkiye.
Department of Forest Protection, Wildlife and Protected Areas, Southwest Anatolia Forest Research Institute, 07010 Antalya, Türkiye.
Pathogens. 2025 Jul 1;14(7):655. doi: 10.3390/pathogens14070655.
Cockroaches, particularly the German cockroach ( Linnaeus, Blattodea: Ectobiidae) and the American cockroach ( (Linnaeus), Blattodea: Blattidae), are major public health pests due to their ability to transmit pathogens and develop resistance to chemical insecticides, including synthetic pyrethroids, which are widely used worldwide. Given the increasing resistance, entomopathogenic nematodes (EPNs) have emerged as a potential biological control alternative. This study evaluates the efficacy of three EPN species, (Weiser), (Filipjev), and Poinar, against and collected from different regions of Antalya, Türkiye. Laboratory bioassays were conducted under controlled conditions, testing five EPN concentrations (100, 250, 500, 750, and 1000 IJs/mL). The results showed that was the most effective, causing mortality rates of 46.7% to 100% in adult German cockroaches and 20% to 66.7% in nymphs, while and exhibited lower efficacy. American cockroaches showed higher resistance, with achieving a maximum mortality of 33.3% at the highest concentration, whereas and had no significant lethal effect. These findings suggest that could be a promising biological control agent for , particularly in pyrethroid-resistant populations.
蟑螂，尤其是德国小蠊（林奈，蜚蠊目：姬蠊科）和美洲大蠊（（林奈），蜚蠊目：蜚蠊科），由于其传播病原体的能力以及对包括合成拟除虫菊酯在内的化学杀虫剂产生抗药性，成为主要的公共卫生害虫，而合成拟除虫菊酯在全球广泛使用。鉴于抗药性不断增加，昆虫病原线虫已成为一种潜在的生物防治替代方法。本研究评估了三种昆虫病原线虫物种，即小卷蛾斯氏线虫（魏泽尔）、嗜菌异小杆线虫（菲利波夫）和长尾斯氏线虫（波伊纳尔），对从土耳其安塔利亚不同地区采集的德国小蠊和美洲大蠊的防治效果。在可控条件下进行了实验室生物测定，测试了五种昆虫病原线虫浓度（100、250、500、750和1000条感染期幼虫/毫升）。结果表明，小卷蛾斯氏线虫最有效，导致成年德国小蠊的死亡率为46.7%至100%，若虫的死亡率为20%至66.7%，而嗜菌异小杆线虫和长尾斯氏线虫的效果较低。美洲大蠊表现出更高的抗性，长尾斯氏线虫在最高浓度下的最大死亡率为33.3%，而嗜菌异小杆线虫和小卷蛾斯氏线虫没有显著的致死效果。这些发现表明，小卷蛾斯氏线虫可能是防治德国小蠊的一种有前景的生物防治剂，特别是在对拟除虫菊酯具有抗性的种群中。
