PDF(Pubmed)
Abstract：
Fruit flies cause substantial economic damage, and their management relies primarily on chemical insecticides. However, pesticide resistance has been reported in several fruit fly species, the mitigation of which is crucial to enhancing fruit fly control. Here, we assess the toxicity of a novel insecticide (fluralaner) and a common insecticide (dinotefuran) against three fruit fly species, Bactrocera dorsalis (Hendel), Bactrocera cucurbitae (Coquillett), and Bactrocera tau (Walker). Both pesticides exhibit robust lethal and sublethal effects against all three fruit fly species, with fluralaner being more potent. Fluralaner and dinotefuran suppress the reproductive capacities and survival rates of fruit flies. However, at the 50% lethal concentration, fluralaner stimulates the reproductive capacity of B. dorsalis and the survival rate of B. tau. Fluralaner also causes significant transgenerational effects, impacting the offspring hatching rate of B. cucurbitae and B. tau and reducing the proportion of female offspring. Thus, both pesticides exhibit high potential for controlling fruit flies. However, their application should be tailored according to species variations and the diverse effects they may induce. Collectively, the findings of this study outline the sublethal effects of two insecticides against fruit flies, helping to optimize their application to ensure the effective management of insecticide resistance.
摘要：
果蝇造成了巨大的经济损失，他们的管理主要依靠化学杀虫剂。然而,已经报道了几种果蝇的农药抗性，缓解这种情况对加强果蝇控制至关重要。这里,我们评估了一种新型杀虫剂（fluralaner）和一种普通杀虫剂（dinotfuran）对三种果蝇的毒性，dorsalis（Hendel），葫芦芽孢杆菌（Coquillett），和Bactroceratau（沃克）。两种杀虫剂对所有三种果蝇都表现出强大的致死和亚致死作用，Fluralaner更有效。Fluralaner和dinotfuran抑制果蝇的繁殖能力和存活率。然而,在50%的致死浓度下，fluralaner刺激背芽孢杆菌的生殖能力和B.tau的存活率。Fluralaner也会引起重大的跨代效应，影响葫芦和tau的后代孵化率，降低雌性后代的比例。因此，两种杀虫剂都显示出控制果蝇的高潜力。然而,它们的应用应根据物种变化和它们可能引起的各种影响进行调整。总的来说，这项研究的结果概述了两种杀虫剂对果蝇的亚致死作用，帮助优化其应用，以确保有效管理杀虫剂抗性。
