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Pea Aphid (Homoptera: Aphididae)-Induced Changes in Some Growth Rates of Pea Plants

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Feeding by Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) on young pea plants, Pisum Sativum (L.) var. 'Alaska,' reduced the relative growth rate and efficiency of production of new tissue relative to the amount of leaf area by as much as 118%. These changes were proportional to the number of aphids and length of infestation period and occurred because of reductions in leaf surface area up to 83% and loss of pholosynlhate which aphids extracted. Reductions were only one-fifth to two-thirds as large when infestations were delayed for 5 days.

Total leaf area of the plants relative to their weights was not decreased.

Document Type: Research Article

Publication date: October 1, 1982

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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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