Abstract
The insecticidal effects of the insecticide based on the mixture of porous starch and fennel essential oil was investigated. Its insecticidal activity and its mortality on adults of Tribolium confusum were evaluated. Moreover, the production methods used in the evaluation was studied. Fennel essential oil was put into the porous starch with glycerin and ethyl acrylate. Non-woven was chosen as the substrate, and ethyl acrylate as adhesives. Then the new insecticide was made. According to the fumigant toxicity and persistent of the new insecticide, the insecticidal effect of the insecticide was analyzed. Tribolium confusum mortality was dose dependant and after 4-day exposure the insecticide was more toxic than the pure fennel essential oil. There was, however, a highly significant loss of toxicity after 24 and 48 h following treated with essential oil and insecticide, respectively. The fennel essential oil evoked moderated repellent action and high fumigant toxicity (LD50 = 0.030μL/cm3) against adults of Tribolium confusum.
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