Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China.
College of Life Science, Hebei Normal University, Shijiazhuang, China.
PeerJ. 2022 Apr 22;10:e13316. doi: 10.7717/peerj.13316. eCollection 2022.
The peachfruit fly, (Saunders) is a polyphagous pest in nature, belonging to order, and their respective family is . It mostly feeds on different crops, vegetables and fruits. Different traditional chemical insecticides have been used to control this notorious pest. Excessive consumption of pesticides has become a major threat to the fresh fruits trade since many importing countries refused to accept the shipments due to public health and environmental concerns. There is a growing trend to control these pests using the most effective biological control methods and other preventive measures have been adopted for reducing their attacks. Fungal agents have been used as biological agents to manage the attack of different insects pest through biological means. The present study was conducted to assess the virulence of three entomopathogenic fungi, , and against stages under different laboratory conditions. The results showed that and were more effective in pathogenicity and potentially kill at all stages of as compared to . The highest mortality rate for the third larval instar and the pupal stage were recorded after exposure to the 1 × 10 conidia/ml concentrations, with 68.67% and 89.67%, respectively. Adult flies were the most susceptible to all entomopathogenic fungi. However, was more virulent against adult flies than and at 1 × 10 conidial concentration. Therefore, the entomopathogenic fungi and can be used as an cost effective bio-insecticide in the integrated pest management programs to control . This study will be helpful to overcome this pest through biological control means.
桃小食心虫，（桑德斯）在自然界中是一种多食性害虫，属于目，它们各自的科是。它主要以不同的作物、蔬菜和水果为食。不同的传统化学杀虫剂已被用于控制这种臭名昭著的害虫。由于许多进口国出于对公众健康和环境的担忧而拒绝接受这些产品，过量使用农药已成为新鲜水果贸易的一大威胁。控制这些害虫的趋势越来越倾向于使用最有效的生物防治方法，并且已经采取了其他预防措施来减少它们的攻击。真菌制剂已被用作生物制剂，通过生物手段来管理不同昆虫害虫的攻击。本研究旨在评估三种昆虫病原真菌、、对不同实验室条件下的不同发育阶段的毒力。结果表明，与相比，和在致病性方面更有效，并且有可能杀死的所有发育阶段。在暴露于 1×10 个分生孢子/ml 浓度下，第三龄幼虫和蛹期的死亡率最高，分别为 68.67%和 89.67%。成虫对所有昆虫病原真菌最敏感。然而，在 1×10 个分生孢子浓度下，比和对成虫的毒力更强。因此，昆虫病原真菌和可以用作具有成本效益的生物杀虫剂，用于综合虫害管理计划来控制。这项研究将有助于通过生物防治手段克服这种害虫。
