Observations on Three Important Forest Insects
Author: KNULL, JOSEF N.
Source: Journal of Economic Entomology, Volume 25, Number 6, December 1932 , pp. 1196-1203(8)
Publisher: Entomological Society of America
Abstract:The pine spittle bug (Aphrophora parallela Say) has caused severe damage to Scotch pine plantings in Pennsylvania. The extensive feeding of the adults and nymphs causes retardation in growth to such an extent that the trees die. The fruit-tree leaf-roller(Cacoecia argyrospila Walker) and the elm spanworm (Ennomos subsignarius Hubner) have caused the death of many hardwoods, especially oaks, in various parts of the State. The larvae defoliate the trees and make them susceptible to the attack of secondary insects, chief of which is the two-lined chestnut' borer (Agrilus bilineatus Weber).
Document Type: Research Article
Publication date: December 1, 1932
- 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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