Repellent activity against Solenopsis invicta (Buren, 1972) and Monomorium pharaonis (Linnaeus, 1758) and larvicidal docking against Haematobia irritans (Linnaeus, 1758) of Astrocaryum acaule Mart oil

Abstract

The study evaluated the repellent properties of Astrocaryum acaule oil against ants (Solenopsis invicta and Monomorium pharaonis) and its larvicidal activity against Haematobia irritans larvae by molecular docking. Ripe fruits of A. acaule were found in Ananás, Tocantins. The samples were produced from the extraction of alcohol and oil from the pulp of A. acaule, followed by the fusion of the components to form the repellent solution and evidence by gas chromatography and mass spectrometry, identification of the substances. Repellenticide tests (S. invicta and M. pharaonis) and comparative tests on pork ham plates with commercial repellent and with A. acaule oil were performed. Genetic and molecular tests on H. irritans larvae were performed to determine the action of the active principles of A. acaule oil from computerized simulations. A. acaule oil showed higher concentrations of active ingredients, such as dillapiole (45.1%) and icaridin (31.2%). Oil volatilization was rapid, both in the shade (101 min) and in the sun (75 min). Genetic and molecular testing indicated changes in genes, mainly due to the ability to alter the amino acids methionine and tryptophan with the use of A. acaule oil, indicating potential for population control. The results suggest that A. acaule repellent is a promising and effective option for insect control, contributing to public health and the management of agricultural and urban policies, highlighting the importance of continuous research for its responsible and sustainable use.