当前位置: X-MOL 学术Physiol. Entomol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Insecticide susceptibility level and control failure likelihood estimation of Sub‐Saharan African populations of tomato leafminer: Evidence from Burkina Faso
Physiological Entomology ( IF 1.6 ) Pub Date : 2020-08-28 , DOI: 10.1111/phen.12332
Mathieu W. Sawadogo 1, 2 , Irénée Somda 2 , Souleymane Nacro 3 , Anne Legrève 4 , François J. Verheggen 1
Affiliation  

The South American tomato pinworm, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is a leafminer species currently considered as one of the major pests of fresh tomatoes around the world. The species settled in north Africa in 2007, before being observed in the entire continent. Widespread insecticide use has led to the emergence of resistant populations in South America and Europe, but no large‐scale insecticide resistance assessment has been performed in Sub‐Saharan Africa so far. In this study, we collected T. absoluta larvae from locations widely distributed in Burkina Faso, where the pest was first detected in 2016. Acute toxicity of the all available molecules in Burkina Faso was evaluated in the laboratory on F1 individuals, including acetamiprid, abamectin, spinosad, cypermethrin, chlorpyrifos, λ‐cyhalothrin, deltamethrin, and Bacillus thuringiensis. No LC50 differences among T. absoluta populations were highlighted, except for Bacillus thuringiensis. Insects were still highly susceptible to abamectin [LC50 < 0.4 mg/L; Control failure likelihood (CFL) = −25%], spinosad (LC50 < 0.6 mg/L; CFL = 25%) and chlorpyrifos‐ethyl (LC50 between 254 and 458 mg/L; CFL = −15%), but were less susceptible to acetamiprid (CFL ranging from 72% to 91%), cypermethrin (CFL = 80%), λ‐cyhalothrin (CFL =79%), and deltamethrin (CFL ranging from 51% to 66%), with LC50 values for these insecticides ranging between 100 and 525 mg/L. Pending a proper communication strategy, we hope this work could help producers avoiding the most inefficient active substances.

中文翻译:

撒哈拉以南非洲番茄潜叶虫种群的杀虫剂敏感性水平和控制失败可能性估计:来自布基纳法索的证据

南美番茄蛲虫 Tuta absoluta Meyrick(鳞翅目:Gelechiidae)是一种潜叶虫,目前被认为是世界各地新鲜番茄的主要害虫之一。该物种于 2007 年在北非定居,然后在整个大陆被观察到。杀虫剂的广泛使用导致南美洲和欧洲出现抗药性种群,但迄今为止,尚未在撒哈拉以南非洲进行大规模的杀虫剂抗药性评估。在这项研究中,我们从布基纳法索广泛分布的地点收集了 T. absoluta 幼虫,该害虫于 2016 年首次被发现。布基纳法索所有可用分子的急性毒性在实验室中对 F1 个体进行了评估,包括啶虫脒、阿维菌素、多杀菌素、氯氰菊酯、毒死蜱、λ-三氯氟氰菊酯、溴氰菊酯、和苏云金芽孢杆菌。除了苏云金芽孢杆菌外,没有突出显示 T. absoluta 种群之间的 LC50 差异。昆虫仍然对阿维菌素高度敏感 [LC50 < 0.4 mg/L;控制失败可能性 (CFL) = -25%]、多杀菌素(LC50 < 0.6 mg/L;CFL = 25%)和毒死蜱(LC50 在 254 和 458 mg/L 之间;CFL = -15%),但较少对啶虫脒(CFL 范围从 72% 到 91%)、氯氰菊酯(CFL = 80%)、λ-三氯氟氰菊酯(CFL = 79%)和溴氰菊酯(CFL 范围从 51% 到 66%)敏感,这些的 LC50 值100 至 525 mg/L 的杀虫剂。在制定适当的沟通策略之前,我们希望这项工作可以帮助生产商避免使用效率最低的活性物质。昆虫仍然对阿维菌素高度敏感 [LC50 < 0.4 mg/L;控制失败可能性 (CFL) = -25%]、多杀菌素(LC50 < 0.6 mg/L;CFL = 25%)和毒死蜱(LC50 在 254 和 458 mg/L 之间;CFL = -15%),但较少对啶虫脒(CFL 范围从 72% 到 91%)、氯氰菊酯(CFL = 80%)、λ-三氯氟氰菊酯(CFL = 79%)和溴氰菊酯(CFL 范围从 51% 到 66%)敏感,这些的 LC50 值100 至 525 mg/L 的杀虫剂。在制定适当的沟通策略之前,我们希望这项工作可以帮助生产商避免使用效率最低的活性物质。昆虫仍然对阿维菌素高度敏感 [LC50 < 0.4 mg/L;控制失败可能性 (CFL) = -25%]、多杀菌素(LC50 < 0.6 mg/L;CFL = 25%)和毒死蜱(LC50 在 254 和 458 mg/L 之间;CFL = -15%),但较少对啶虫脒(CFL 范围从 72% 到 91%)、氯氰菊酯(CFL = 80%)、λ-三氯氟氰菊酯(CFL = 79%)和溴氰菊酯(CFL 范围从 51% 到 66%)敏感,这些的 LC50 值100 至 525 mg/L 的杀虫剂。在制定适当的沟通策略之前,我们希望这项工作可以帮助生产商避免使用效率最低的活性物质。但对啶虫脒(CFL 范围为 72% 至 91%)、氯氰菊酯(CFL = 80%)、λ-三氯氟氰菊酯(CFL = 79%)和溴氰菊酯(CFL 范围为 51% 至 66%)的敏感性较低,LC50这些杀虫剂的值在 100 到 525 毫克/升之间。在制定适当的沟通策略之前,我们希望这项工作可以帮助生产商避免使用效率最低的活性物质。但对啶虫脒(CFL 范围为 72% 至 91%)、氯氰菊酯(CFL = 80%)、λ-三氯氟氰菊酯(CFL = 79%)和溴氰菊酯(CFL 范围为 51% 至 66%)的敏感性较低,LC50这些杀虫剂的值在 100 到 525 毫克/升之间。在制定适当的沟通策略之前,我们希望这项工作可以帮助生产商避免使用效率最低的活性物质。
更新日期:2020-08-28
down
wechat
bug