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Probing Behavior of Aphis gossypii> on Resistant and Susceptible Muskmelon

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Microscopic examination of stylets and sheaths and electronic recording of the probing behavior of the melon aphid on resistant and susceptible muskmelon revealed pronounced differences in probing on the 2 lines. Relative to the susceptible line, ‘Top Mark,’ stylets and sheaths in the resistant line, 91213, had significantly more branches ending in the phloem. Electronic recording of aphid probing revealed that on the resistant plants a significantly greater percentage of the probes led to stylet contact with the phloem sieve cells, but a smaller proportion of the sieve cell contacts resulted in ingestion than was the case on susceptible plants. In addition, the duration of periods of ingestion from the sieve cells was 2- to 3× greater on susceptible than on resistant plants.

Document Type: Research Article

Publication date: February 1, 1978

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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