Free-choice Administration of Ronnel in Mineral Mixture for the Control of Cattle Grubs1

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Technical ronnel incorporated in a 3: 1 salt-bonemeal mixture was made available on a free-choice basis to cattle grub-infested calves for periods of 28 to 66 days. Outstanding control (100%) was achieved at concentrations of 48 and 40 grams ronnel per pound of mixture for 66 days. Inadequate control was obtained at lower levels (16 grams per pound) and over shorter periods (28 days). Six-fold variations in average total mineral consumption (0.31 to 1.88 oz. per day) were observed. Accompanying physiological events such as reduced erythrocyte cholinesterase activity (as low as 21% of pretreatment activity) and transient weight gain depression at higher levels of ingestion suggest that further research with this or other appropriate systemic chemicals- be pursued before general recommendations for use be made.

Document Type: Research Article

Publication date: October 1, 1959

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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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