In New York State, leaves of mature apple trees often become stippled and devitalized as a result of feeding by the leafhopper T. pomaria. The species is twobrooded and overwinters in the egg stage on apple. In 1931 the first brood hatched in May; the second brood hatched during the latter half of August. The nymphs are readily killed by nicotine sprays, and since the duration in hatching of either brood was not long in 1931 it appears probable that a single correctly timed treatment may effect a high percentage kill of a brood.
Document Type: Research Article
Publication date: June 1, 1932
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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.