Abstract
Coleoptera poses a threat to quality standards in crop production and storage, where it can cause large production losses as a fundamental organism for the transmission of plant diseases. Several synthetic products have been used for their control, with reported adverse effects on the health of exposed animals and humans. The use of essential oils (EOs) is an excellent alternative for the control of pests in crop production and storage, due to their high rate of safety for people and the environment. In the present study, EOs were obtained from three plant species cultivated in Colombia characterized by GC/MS Elettaria cardamomum, Salvia officinalis and Lippia origanoides (Carvacrol chemotype). These three plant species were evaluated for repellent and fumigant functions against Tribolium castaneum and Ulomoides dermestoides. The main component in E. cardamomum and S. officinalis was 1.8-cineole (23.4 and 30.9 %), whereas in L. origanoides it was carvacrol (32.3 %). EOs depicted concentration-dependent biological effects. L. origanoides exhibited the maximum percentage of mortality and the highest repellent potency with RC50 of 0.220 % for T castaneum, and 0.207 % for U. dermestoides. These results showed that the EOs from E. cardamomum, S. officinalis and L. origanoides are promising species for use in integrated pest management.
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