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A Comparative Study of Certain Biological Phenomena of a Resistant and a Susceptible Strain of the Boll Weevil, Anthonomus grandis1

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Abstract:

Research was conducted in 1959 to determine if biological differences existed in a laboratory reared resistant and susceptible strain of the boll weevil, Anthonomus grandis Bah.

The most significant differences found were an increase in the length of the developmental period and a decrease in the reproductive potential of the resistant strain. An increase of 12.5 hours in the developmental period of the resistant strain over the susceptible strain proved highly significant. The fecundity of the resistant females decreased approximately 2Z% below the susceptible females.

Significant differences were observed in the fecundity, and the length of time required for embryonic, larval, and pupal development. No differences were observed in the mortality rates, sex ratios, length of preoviposition and oviposition periods or percentage egg hatch.

Document Type: Research Article

Publication date: June 1, 1961

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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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