Gul Hina, Haq Ihsan Ul, Güncan Ali, Ullah Farman, Desneux Nicolas, Liu Xiaoxia
MARA Key Laboratory of Pest Monitoring and Green Management, Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
Insect Pest Management Program, Institute of Plant and Environmental Protection, National Agricultural Research Centre, Islamabad 44000, Pakistan.
Toxics. 2023 Sep 24;11(10):806. doi: 10.3390/toxics11100806.
The bird cherry-oat aphid, (L.) (Hemiptera: Aphididae) is one of the most economically important pests of wheat crops worldwide. Thiamethoxam, bifenthrin, and flonicamid are extensively used insecticides for controlling this key pest. However, the indiscriminate use of chemical insecticides has led to the development of resistance in insects. In this study, we assessed the development of selection-induced resistance to bifenthrin, flonicamid, and thiamethoxam under controlled laboratory conditions. Additionally, we employed the age-stage, two-sex life table method to examine the fitness of . After ten generations of selection, bifenthrin-, flonicamid-, and thiamethoxam-resistant strains of were developed with resistance levels of 34.46, 31.97, and 26.46-fold, respectively. The life table analysis revealed a significant decrease in adult longevity and fecundity in these resistant strains compared to susceptible strain. Furthermore, the key demographic parameters such as net reproductive rate () and reproductive days exhibited a significant reduction in all resistant strains, while the intrinsic rate of increase () and finite rate of increase () were decreased only in resistant strains to bifenthrin and thiamethoxam. Taken together, these findings provide a comprehensive understanding of laboratory-induced insecticide resistance evolution and the associated fitness costs in . This knowledge could help to design resistance management strategies against this particular pest of wheat.
稠李燕麦蚜，（L.）（半翅目：蚜科）是全球小麦作物最重要的经济害虫之一。噻虫嗪、联苯菊酯和氟啶虫酰胺是广泛用于防治这种关键害虫的杀虫剂。然而，化学杀虫剂的滥用导致昆虫产生了抗性。在本研究中，我们在可控的实验室条件下评估了对联苯菊酯、氟啶虫酰胺和噻虫嗪的选择诱导抗性的发展。此外，我们采用年龄-阶段两性生命表方法来研究稠李燕麦蚜的适合度。经过十代选择，分别培育出了对联苯菊酯、氟啶虫酰胺和噻虫嗪具有抗性的稠李燕麦蚜品系，抗性水平分别为34.46倍、31.97倍和26.46倍。生命表分析表明，与敏感品系相比，这些抗性品系的成虫寿命和繁殖力显著降低。此外，所有抗性品系的关键种群统计学参数，如净繁殖率（）和繁殖天数均显著降低，而内禀增长率（）和周限增长率（）仅在对联苯菊酯和噻虫嗪的抗性品系中降低。综上所述，这些发现全面了解了实验室诱导的杀虫剂抗性进化以及稠李燕麦蚜相关的适合度代价。这些知识有助于设计针对这种特定小麦害虫的抗性管理策略。
