Toxicology and Repellent Activity of Essential Oils on<i>Sitophilus oryzae</i>L. and<i>Tribolium castaneum</i>Herbst

Abstract

ABSTRACT The repellence, attractance, and mortality of essential oils from several herb species cultivated in Argentina was evaluated on the stored grain pests Sitophilus oryzae and Tribolium castaneum. At a concentration of 22 μ1 of oil/liter of air, the essential oil of false camphor, Cinamommum glandulifera, attracted Sitophilus oryzae at a dose of 60 μl of oil/liter of air and the essential of rosemary, Rosmarinus officinalis, was toxic to Tribolium castaneum. No repellent activity was observed with any of the essential oils tested.