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Rapid Spread of the Apple and Thorn Skeletonizer, Hemerophila Pariana Clerck

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This European insect, Hemerophila Pariana Clerck, first appeared in the United States in West chester County, N. Y., in 1917 and in Greenwich and Stamford, Conn., in November, 1920. In 1921, first brood injury was prominent and adults were abundant in Greenwich and Stamford and before the close of the season records indicated that this insect occurred in all counties of Connecticut except Windham County. Late in 1922, unsprayed apple trees were brown from its attacks in the vicinity of New Haven and northward through Hartford. It was also observed in Windham County, Conn., and in Huntington and Amherst, Mass. Adult moths were very abundant on window screens in late fall and it is believed that it passes the winter in the adult stage, and that it spreads chiefly by adults moving with the prevailing winds. Dr. Felt reports an invasion just south of Albany, N. Y. It is believed to be in northern New Jersey, though definite proof is not at hand.

Document Type: Research Article

Publication date: April 1, 1923

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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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