Susceptibility and residual effect of indoxacarb formulations on major soybean lepidopteran pests

Abstract Chysodeixis includens and Helicoverpa armigera can negatively impact soybean yield due to defoliation direct injury on the pods, respectively. Insecticides, such as indoxacarb, are still an important controlling tool manage these insects. To support Integrated Pest Management (IPM) Insect Resistance (IRM) well reduce product decantation during storage nozzle clogging in field application, a new indoxacarb formulation (emulsifiable concentrate - EC) was developed replace suspension (SC). The objective of this study evaluate susceptibility compare residual effects two formulations C. H. soybean. A dose-response curve effect from in-field application were obtained using laboratory strain both insect pests. Soybean leaflets collected dipped into aqueous solutions. evaluations performed 96 h after infestation calculate mortality percentage foliar damage. Also, plants sprayed mid upper regions used feed third-instar larvae species. Results demonstrated that similary sensitive . activity up 1 for 3 days No difference observed between plant. Overall, enhanced EC is effective SC control species