do Carmo Daiane G, Costa Thiago L, Santana Júnior Paulo A, Santana Weyder C, Marsaro Júnior Alberto L, Pereira Poliana S, Santos Abraão A, Picanço Marcelo C
Departamento de Fitotecnia, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil.
Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil.
Insects. 2023 Jan 17;14(2):98. doi: 10.3390/insects14020098.
We evaluated the efficacy and residual toxicity of nine commercial insecticides on and their selectivity to the predator ant under laboratory and field conditions. First, to test the insecticides' effectiveness and selectivity, we conducted concentration-response bioassays on both species and the mortalities were recorded 48 h after exposure. Next, rapeseed plants were sprayed following label rate recommendations in the field. Finally, insecticide-treated leaves were removed from the field up to 20 days after application and both organisms were exposed to them as in the first experiment. Our concentration-response bioassay indicated that seven insecticides caused mortality ≥80% of : bifenthrin, chlorfenapyr, chlorantraniliprole, cyantraniliprole, indoxacarb, spinetoram, and spinosad. However, only chlorantraniliprole and cyantraniliprole caused mortality ≤30% of . The residual bioassay indicated that four insecticides had a long-lasting effect, causing mortality of 100% to 20 days after application: chlorantraniliprole, cyantraniliprole, spinetoram, and spinosad. For , bifenthrin caused mortality of 100% during the evaluated period. Additionally, mortality rates below 30% occurred four days after the application of spinetoram and spinosad. Thus, chlorantraniliprole and cyantraniliprole are safe options for management since their efficacy favor .
我们评估了九种商用杀虫剂在实验室和田间条件下对[目标害虫名称未给出]的防治效果和残留毒性，以及它们对捕食性蚂蚁[蚂蚁名称未给出]的选择性。首先，为测试杀虫剂的有效性和选择性，我们对这两个物种进行了浓度 - 反应生物测定，并在接触48小时后记录死亡率。接下来，按照田间标签推荐剂量对油菜植株进行喷雾处理。最后，在施药后长达20天从田间采集经杀虫剂处理的叶片，并像在第一个实验中那样让两种生物接触这些叶片。我们的浓度 - 反应生物测定表明，七种杀虫剂导致[目标害虫名称未给出]的死亡率≥80%：联苯菊酯、虫螨腈、氯虫苯甲酰胺、氰虫酰胺、茚虫威、多杀霉素和乙基多杀菌素。然而，只有氯虫苯甲酰胺和氰虫酰胺导致[蚂蚁名称未给出]的死亡率≤30%。残留生物测定表明，四种杀虫剂具有长效作用，在施药后20天导致[目标害虫名称未给出]的死亡率为100%：氯虫苯甲酰胺、氰虫酰胺、多杀霉素和乙基多杀菌素。对于[蚂蚁名称未给出]，联苯菊酯在评估期内导致100%的死亡率。此外，在施用多杀霉素和乙基多杀菌素四天后死亡率低于30%。因此，氯虫苯甲酰胺和氰虫酰胺是防治[目标害虫名称未给出]的安全选择，因为它们的防治效果有利于[目标害虫名称未给出]。
