Site of Spruce Budworm Egg Masses on their Preferred Hosts in the Lake States1

Authors: WILSON, LOUIS F.; BEAN, JAMES L.

Source: Journal of Economic Entomology, Volume 56, Number 5, October 1963 , pp. 574-578(5)

Publisher: Entomological Society of America

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Abstract:

The distribution of spruce budworm (Choristoneura fumiferana (Clemens)) egg masses on the tree's vertical axis and certain needle characteristics at the oviposition site on the branch were examined. The sample trees, which varied in degree of defoliation, consisted of five balsam fir (A bies balsamea (L.) Mill.) and two white spruce (Picea glauca (Moench) Voss). A correlation was established between the number of egg masses and both branch size and location in the crown. The trends of the results were similar for each of the samples.

The needle-characteristic study was made only on balsam fir. The side of the needle that faced a high density of adjacent needles was the preferred side for oviposition. The distance between the need les was also a factor responsible in part for selection of the oviposition site.

Document Type: Research Article

Publication date: October 1, 1963

More about this publication?
  • 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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