Ability of Egg Traps to Detect the Onset of Second-Generation Navel Orangeworm (Lepidoptera: Pyralidae) Moth Activity in Almond Orchards

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The performance of egg traps for monitoring ovipositional activity of the navel orangeworm, Amyeloi$ transitella (Walker), is impaired by the competing attractiveness of the almond crop during the period when the almonds dehisce (hullsplit). To determine if egg traps detect the onset of second-generation moth activity, activity of navel orange worm after hull split was monitored with egg traps and blacklight traps in five commercial almond orchards during two seasons. The performance of egg traps that were painted black also was compared with that of standard, clear plastic egg traps. Although significantly more eggs were found on black traps than on standard traps, both trap types detected fairly accurately the onset of second-generation moth emergence, as measured by the black light trap catches.

Document Type: Research Article

Publication date: April 1, 1990

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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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