Effectiveness and Persistence of Insecticides Applied During the Summer Months to Control Oriental Fruit Moth on Peach1

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Injury by the oriental fruit moth (Grapholitha molesta(Busck)) to ripening peach varieties Summer crest and Elberta in untreated orchards in central New Jersey averaged 23.3% over a period of 19 years. Applications of EPN, parathion, SevinĀ® (1-naphthyl N-methylcarbamate), or GuthionĀ® (O,O-dirnethylS-( 4-oxo-1,2,3- benzotriazin-3-( 411)-ylmethyl) phosphorodlthioate) about July 10 and August 1 effectively prevented such injury. Chemical analysis showed considerable differences between deposits of insecticides on leaves and fruit in orchards and the rates at which they disappeared. Bioassay of residues showed marked differences in toxicity to stages of the oriental fruit moth at various intervals up to g weeks after sprays were applied to orchard plots. The rate of parathion residue loss from leaves and fruit was not reduced by formulat1llg this insecticide with various materials of low vapor pressure.

Document Type: Research Article

Publication date: October 1, 1962

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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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