Biochemical Analysis of a Castor Bean Leaf Extract and its Insecticidal Effects Against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)

摘要: Plant extracts represent a great source of molecules, with insecticidal activity, which are used for pest control in several crop production systems. This work aimed to evaluate the toxicity an aqueous extract leaves castor bean against larvae Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) search different classes molecules activities by using vitro assays. The effects leaf on food utilization, development, and survival S. was evaluated feeding artificial diet supplemented concentrations (0%, 1%, 2.5%, 5%, 10% w/v). observed were dose-dependent, highest concentration (10% w/v) one most affected utilization altering nutritional indices, as well larval weight gain, development time, survivorship. In assays detect saponins, lectins, trypsin inhibitors performed, but only detected. No preference detected choice experiments diets containing tested. data obtained indicate existence potential molecule tested be alternative insecticide integrated management frugiperda.