RESUMO

The insecticide effect of a lectin obtained from Ricinus communis (castor-oil plant) on a population of houseflies from San José de Las Lajas was evaluated. Assays were performed with adults and larvae. Mortality was higher as the time f exposure to the extract increased DL50 was of 353.4 p.p.m. after 72 hours of exposure. It was observed a remarkedly significant reduction of the pupal development in the presence of the extract, which shows its insecticide activity.

Assuntos

Moscas Domésticas , Inseticidas , Plantas , Ricina , Animais , Cuba , Relação Dose-Resposta a Droga , Inseticidas/isolamento & purificação , Dose Letal Mediana , Pupa , Ricina/isolamento & purificação , Fatores de Tempo