Phagodeterrency Induced by (−)-Carvone in the Larva of Spodoptera littoralis (Lepidoptera: Noctuidae)

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The effect of some pure terpenes or terpene mixtures on the development of larvae of Spodoptera littoralis Boisduval was investigated by incorporating the compounds at 1% in a wheat bran diet. On the (−)-carvone-treated diet, larval average weight was very low at each observation, only 2.5% of the larvae pupated, and no moths emerged. A negative correlation was found between the concentration of carvone in the diet and larval growth, pupation, and moth emergence. The location of larvae on treated and untreated diets was observed in choiceand nochoice experiments. In both cases, the total number of larvae found on carvone-treated diets was lower than on control diets. It is assumed that carvone acts as a phagodeterrent in the diets and does not repel the larvae by its odor.

Document Type: Research Article

Publication date: June 1, 1982

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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