Efeito do extrato etanólico de Annona mucosa jack. (Annonaceae) no controle de Plutella xylostella (L.,1758) (Lepidoptera: Plutellidae)

Abstract

The management of insect pests with the use of alternative control methods, specifically the vegetal extracts, has been studied. The objective of this research was to investigate the insecticidal potential of the Annonaceae family as an alternative control tactic for the integrated management of the diamondback, Plutella xylostella (Lepidoptera: Plutellidae). The objective of this study was to evaluate the ethanolic extract of A. mucosa Jacq (Annonaceae), to estimate the lethal concentrations (LC₅₀ and LC₉₉) and to evaluate the insecticidal activity in the larval stages. The estimation of LC₅₀ and LC₉₉ was determined using the Bliss formula (1934) performed by Probit analysis. For A. mucosa the LC₅₀ and LC₉₉ of the ethanolic extract of A. mucosa (EEAM) estimated were 51.64 and 616.2 μL.mL^-1, respectively; LC₉₉ has efficiency effects in the 1st instar larval stage; LC₅₀ has efficiency in the 1st instar larval stage. It was concluded that specie of A. mucosa present insecticidal action for the control of P. xylostella.