Polychrosis viteana is now rated as the worst enemy of grapes in Delaware. Life History studies during 1928 show that nearly a full third brood developed in the vicinity of Camden while only a partial third brood took place at Newark. In the Camden section the earliest moths started to issue on May 28th but careful field observations showed that grape berry.moth eggs started general hatching in the field on June 25th. Under control, emphasis is placed on clean up of leaf accumulations in old hedge rows and grassy strips between vineyards, the use of a good sticker and spreader, and the timeliness, thoroughness, and manner of application.
Document Type: Research Article
Publication date: February 1, 1929
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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.