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Effect of Pandora Moth (Lepidoptera: Saturniidae) Defoliation on Growth of Ponderosa Pine in Arizona

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Abstract:

Defoliation of ponderosa pine, Pinus ponderosa Douglas ex Lawson and Lawson, by the pandora moth, Coloradia Pandora Blake, results in a significant reduction in basal area growth compared with undefoliated trees. A high proportion (83%) of heavily defoliated trees produced no growth in the year following defoliation. Heavily defoliated trees produced more growth than moderately defoliated trees one year after the last defoliation. Overall, tree growth is not related linearly to defoliation intensity.

Document Type: Research Article

Publication date: December 1, 1989

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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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