ECOTOXICOLOGIA DE BIOINSUMOS: CONCENTRAÇÕES SEGURAS E NÃO SEGURAS DE BIOINSETICIDA À BASE DE Metarhizium anisopliae SOBRE A ABELHA Tetragonisca angustula

Abstract

The work investigated the effects of a biopesticide on stingless bees, Tetragonisca angustula. This study is motivated by the need to understand how the use of bio-inputs can affect the behavior and efficiency of bees, which are essential for the pollination of various native and cultivated plants, and consequently, agricultural productivity and the conservation of native species. The research addressed issues such as the acute and sublethal effects of exposure to biopesticides. The main hypothesis is that the Metarhizium anisopliae-based bioinsecticide has toxic effects on the stingless bee T. angustula, with the degree of toxicity being dependent on concentration and type of exposure, impacting the behavior and mortality of bees. The methodology involved trials under controlled laboratory conditions, using survival and behavioral parameters. The generated data aim to determine the lethal concentration for 10 and 50% of bees (CL10;50), the No Observed Effect Concentration (NOEC), and the Lowest Observed Effect Concentration (LOEC), with a view to generating data that contribute to environmental protection agencies, as well as agricultural sustainability and the preservation of native pollinators.