Efeito tóxico do óleo de alho sobre as operárias de abelhas africanizadas em condições controladas.

Abstract

in organic agricultura, famlers aim the use of insecticides to control pests, however, these compounds can achieve insects do not hall the diverse culturas. This work aims to study the toxicity of garlic oil to Apis mellifera bens under controlled conditions. Bioassavs were carried out at the Entomology Laboratory of the Federal University of Campina Grande, Campus de Pombal. If garlic oil used in three different âactions (0.25%, 0.50% and 1 .0%) and added to the "candy" and water. The workers recently emerged have been selected by dize and color, distributed set of 20 insects per wooden box measuring 1 1 cm long by 1 1 wide and 7 cm high, in three replications and control, making boxes 12 and 240 worker bees , they were placed in BO D with temperature adjusted to 32 C and 70% humidity. The control group received only the candy and water. The insects received the candy of treatment with the plant powder. The results of statistical analysis was obtained in the comparison between the concentrations ofthe treatment and the control group in garlic oil intake experiment. For data analysis we used the nonparametric test Log Rank Test, the comparison of survival It was observed that the survival of bens was reduced with the use of diet containing the compound of garlic oil. The control bens remained avive until 20 days and for those treated with 0.25%, 0.50% and 1.0% respectively showed 12, 13 and 06 days survival, suggesting that there is a toxic effect of gar]ic oi] on workers of ]pís mettifera .