Gul Hina, 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.
Department of Plant Protection, Faculty of Agriculture, Ordu University, 52200 Ordu, Turkey.
Insects. 2024 Jul 13;15(7):529. doi: 10.3390/insects15070529.
Flonicamid is a novel systemic insecticide widely used against aphids. However, the intergenerational sublethal effects of flonicamid on cotton aphid, have not been fully studied. This study aimed to evaluate the sublethal effects of flonicamid on the biological parameters of adult (F) and its subsequent intergenerational effects on the offspring (F generation) through age-stage, two-sex life table analysis. The results of the bioassays indicate that flonicamid exhibits significant toxicity toward adult , as evidenced by an LC value of 0.372 mg L after a 48-h exposure period. The longevity, fecundity, and reproductive days of adult cotton aphids (F) were significantly decreased when treated with the sublethal concentrations of flonicamid. The pre-adult stage exhibited an increase, whereas the adult longevity, total longevity, and fecundity experienced a notable decrease in F aphids after the exposure of F aphids to sublethal concentrations of flonicamid. Furthermore, the key demographic parameters, including , , , and RP, showed a significant decrease, while the total pre-reproductive period (TPRP) experienced a significant increase in the F generation. Collectively, our findings indicate that sublethal concentrations of flonicamid impact the demographic parameters of , resulting in suppression of population growth. This study presents comprehensive information on the overall impact of flonicamid on , which could potentially aid in managing this major pest.
氟啶虫酰胺是一种广泛用于防治蚜虫的新型内吸性杀虫剂。然而，氟啶虫酰胺对棉蚜的代际亚致死效应尚未得到充分研究。本研究旨在通过年龄-阶段两性生命表分析，评估氟啶虫酰胺对成虫（F0代）生物学参数的亚致死效应及其对后代（F1代）的后续代际效应。生物测定结果表明，氟啶虫酰胺对成虫表现出显著毒性，48小时暴露期后的LC50值为0.372 mg/L，证明了这一点。用亚致死浓度的氟啶虫酰胺处理时，成年棉蚜（F0）的寿命、繁殖力和生殖天数显著降低。在F0代棉蚜暴露于亚致死浓度的氟啶虫酰胺后，F1代的成虫前期有所增加，而成虫寿命、总寿命和繁殖力则显著下降。此外，关键种群统计学参数，包括R0、rm、λ和RP，均显著下降，而F1代的总繁殖前期（TPRP）则显著增加。总体而言，我们的研究结果表明，亚致死浓度的氟啶虫酰胺会影响F0代的种群统计学参数，从而抑制种群增长。本研究提供了关于氟啶虫酰胺对棉蚜总体影响的全面信息，这可能有助于对这种主要害虫进行管理。
