Wang Bokun, Hui Hongming, Li Xingye, Yang Xueqing, Li Yuting
College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China.
Insects. 2025 Jun 15;16(6):629. doi: 10.3390/insects16060629.
The bird cherry-oat aphid (L.) poses a significant threat to wheat production, resulting in substantial yield reductions. Abamectin and acetamiprid are frequently utilized for management. This study assessed the sublethal effects of abamectin and acetamiprid on through life table analysis and enzyme activity assays. At 24 h, the LC and LC values for abamectin to were 0.063 mg/L and 0.252 mg/L, respectively, while, for acetamiprid, the corresponding values were 0.065 and 0.293 mg/L. The results indicated that exposure to sublethal concentrations of abamectin (AB-LC) extended the longevity of F generation, while acetamiprid (AC-LC and AC-LC) decreased it. Furthermore, the fecundity of the F generation was significantly reduced following exposure to AB-LC, AC-LC and AC-LC. In the F generation, exposure to sublethal concentrations of acetamiprid negatively impacted on , as evidenced by a significant reduction in longevity; fecundity and population parameters (, , , , , , and ). Conversely, sublethal concentrations of abamectin did not significantly affect these parameters. Additionally, population projections revealed a significantly smaller total population size of in the acetamiprid-exposed group compared to both the abamectin-exposed and control groups. Except these population-level effects, the activities of detoxification enzymes, including cytochrome P450 monooxygenases (P450), glutathione S-transferases (GST) and carboxylesterases (CarE), changed differently after treatments. These results suggest that sublethal concentrations of acetamiprid, but not abamectin, significantly inhibit the population growth of . These insights are crucial for control and facilitate the development of effective control strategies that take into account these sublethal effects in integrated pest management strategies targeting .
稠李燕麦蚜对小麦生产构成重大威胁，会导致大幅减产。阿维菌素和啶虫脒常用于防治。本研究通过生命表分析和酶活性测定评估了阿维菌素和啶虫脒的亚致死效应。在24小时时，阿维菌素对稠李燕麦蚜的LC₅₀和LC₉₀值分别为0.063毫克/升和0.252毫克/升，而啶虫脒的相应值为0.065和0.293毫克/升。结果表明，暴露于亚致死浓度的阿维菌素（AB-LC₅₀）可延长F代稠李燕麦蚜的寿命，而啶虫脒（AC-LC₅₀和AC-LC₉₀）则会缩短其寿命。此外，F代在暴露于AB-LC₅₀、AC-LC₅₀和AC-LC₉₀后，繁殖力显著降低。在F₁代中，暴露于亚致死浓度的啶虫脒对稠李燕麦蚜产生负面影响，表现为寿命、繁殖力和种群参数（净生殖率、内禀增长率、周限增长率、世代平均历期、种群加倍时间、种群增长指数和种群趋势指数）显著降低。相反，亚致死浓度的阿维菌素对这些参数没有显著影响。此外，种群预测显示，与阿维菌素处理组和对照组相比，啶虫脒处理组的稠李燕麦蚜总种群数量显著更小。除了这些种群水平的影响外，解毒酶的活性，包括细胞色素P450单加氧酶（P450）、谷胱甘肽S-转移酶（GST）和羧酸酯酶（CarE），在处理后变化不同。这些结果表明，亚致死浓度的啶虫脒而非阿维菌素会显著抑制稠李燕麦蚜的种群增长。这些见解对于稠李燕麦蚜的防治至关重要，并有助于制定有效的防治策略，在针对稠李燕麦蚜的综合害虫管理策略中考虑这些亚致死效应。
