Boll Weevil (Coleoptera: Curculionidae): Marking with Rubidium Chloride Sprays on Cotton and Dispersal from Cotton

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Cotton was sprayed with 2.24 or 4.48 kg of rubidium chloride (RbCl) per ha during the fruiting period (March through August) of 1974 and 1973, respectively. Boll weevils, Anthonomus grandis Boheman, that developed in flower buds of this cotton were marked with rubidium. Boll weevil dispersal was measured to a distance of 90 m from the sprayed plot, and weevils found in grandlure-baited traps set at various distances from the treated cotton were considered labeled if their rubidium content was 70 ppm or more, which was higher than the background level in boll weevils that had not been exposed to sprays of RbCI. Labeled overwintering populations were found during the winter of 1973 and spring of 1974. RbCI applied at 3-week intervals provided sufficient plant coverage to label weevils so that their movement in and around a field of colton could be traced for at least 3 months after the source of rubidium was removed.

Document Type: Research Article

Publication date: December 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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