Should the Midsummer Apple Spray be timed for the second brood only of codling worm?

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Studies of the life history of the codling moth, Carpocapsa pomonella, have been made, partially or fairly complete, at Marietta in southern Ohio, at Wooster in the north central section and at Gypsum in the northwestern section. Records of the dates when the sprays are commonly applied have also been kept through a series of years. The stages of development of the moth at the dates of spraying are shown by the life history chart. The tentative conclusion is reached that when the season is late the summer spray should be earlier than usual instead of later and that a later second summer spray is desirable in such a year.

Document Type: Research Article

Publication date: April 1, 1924

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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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