Efeito do óleo essencial de cravo e seu composto majoritário sobre o comportamento, ecologia e nutrição de Sitophilus zeamais L. e Callosobruchus maculatus.

Abstract

The culture of corn and beans stand out as the most produced and exported grains in Brazil, playing both social and economic importance, present in human and animal food due to its rich nutritional value. With the population increase, there was an increase in demand, highlighting the importance of grain storage, with the need for phytosanitary measures to minimize losses during this period, due to pests and diseases that can reduce their quality and commercial value Thus, the present study aimed to evaluate the bioactivity of clove essential oil and its mode of action in the management of stored grain pests. The research was developed in the Laboratory of Alternative Pest Control-LECAP, in the Laboratory of Physiology of Insects-UFRPE and in the Laboratory of Research in Natural Resources-LPqRN-UFAL, Campus Maceió/AL. By means of chromatography, eugenol was identified as the major compound of clove oil, both the essential oil and its major compound showed effect by contact, fumigation and repellency on Sitophilus zeamais and Callosobruchus maculatus at different lethal concentrations. In addition to the majority compound being lethal at different concentrations, it also promoted changes in the nutritional parameters of S. zeamais.

Keyword: Syzygium aromaticum; Eugenol; Weevil