Disruption of Navel Orangeworm (Lepidoptera: Pyralidae) Oviposition by Almond By-Products

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The ability of almond by-products, crude almond oil and/or a wettable powder (WP) formulation of cull almond kernals, to disrupt the host-finding ability and oviposition of navel orangeworm moths, Amyelois transitella (Walker), was investigated along with the phytotoxicity of these products. The application of 5% crude almond oil in water to large orchard plots resulted in lower egg deposition on egg traps and a lower percentage of infested mummy nuts (unharvested previous year's nuts) when compared with untreated controls. High rates of crude almond oil (10% or greater) were severely phytotoxic to almond foliage. Lower rates showed no phytotoxicity. No phytotoxicity was observed with 9.0 kg of 60% WP of cull almond per 379 liters of water.

Document Type: Research Article

Publication date: December 1, 1987

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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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