CONTROLE ALTERNATIVO DE Bemisia tabaci BIÓTIPO B E TOXICIDADE PRELIMINAR DO CONCENTRADO DE LIMONOIDES OBTIDOS DO RESÍDUO INDUSTRIAL DE SEMENTES DE Capara guianensis.

The present work was based on the search for bioinsecticides of vegetal origin, in particular, the industrial seed residue of Carapa guianensis (Andiroba). The Andirobeira tree produces fruits to which vegetable oil used by pharmaceutical and cosmetic industries is extracted, however, there is generation of by-products called residual cake without any destination. This vegetable oil is rich in compounds called terpenoids with insecticidal action, so it was sought to extract them from the industrial waste with ethanol followed by recrystallization with n-hexane to evaluate its bioactivity against the insect pest Bemisia tabaci Biotype B (whitefly). The results indicated that the concentrations of 200 and 100 mg / ml of the limonoid concentrate were sufficient to eliminate 100% of the whitefly larvae until the third day after application, however, there were significant differences between the concentrations (p> 0.001) confirmed by the Tuckey 5% test. The ecotoxicological test with Artemia salina allowed to confirm the toxicity observing that the concentration of 500µg / ml of the limonoid concentrate caused mortality of 50% of the nauplii and the hemolytic activity presented high toxicity, where the lowest concentration of 62,2µgm / ml of concentrate of limonoids caused less than 10% hemolysis. We sought to add value to a biomass discarded by the industry in the development of bio-insecticidal prototype and to investigate possible adverse effects on the environment. [ABSTRACT FROM AUTHOR]