Seasonal Life Cycle of Fiorinia externa in Maryland1
Authors: GARRET, WALLACE T.; LANGFORD, GEORGE S.
Source: Journal of Economic Entomology, Volume 62, Number 5, October 1969 , pp. 1221-1222(2)
Publisher: Entomological Society of America
Abstract:F. externaFerris on hemlock in Maryland has 2 generations per year. Crawlers hatch continuously from late April until early November. The largest egg hatch is in early May when the new growth is approximately ½ inch long. The second largest hatch occurs in September. There is a great deal of overlapping of the generations especially during the second generation. From 91 to 96 days arc required for first-generation development. Second- generation development was longer because of cold and other unfavorable environmental conditions.
Document Type: Research Article
Publication date: October 1, 1969
- 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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