Evaluation of Twenty Botanical Extracts and Products as Sources of Repellents , Toxicants and Protectants for Stored Grains against the Almond Moth , Cadra cautella

Management of stored product pests using substances of natural origin is nowadays the subject of much research. The effectiveness of 20 botanical extracts and products was evaluated for protecting stored corn meal against Cadra cautella Walker (Lepidoptera, Pyralidae) infestation. Toxicity of the botanical materials was evaluated through screening of the tested botanicals on adults’ oviposition preference and the mortality of eggs and larvae. Besides, the repellency effect of the tested plant materials was evaluated against C. cautella larvae (20-days old). Repellency tests were carried out through food and area preference tests. Results showed that cedar wood oil, clove buds powder and orange oil were the most promising materials in protecting stored corn meal against C. cautella infestation. _____________________________________________________________________________________________________________

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