Grub control in cattle given Dow ET-57 (Trolelle4) and Dow ET-57 with purified phenothiazine during different months after heel fly activity ranged from 80 to 100%. There were no appreciable differences in the control obtained with dosages of 7.5 and 100 mg./kg. of Dow ET-57 or with 75 mg./kg. Dow ET-57 with 100 mg./kg, purified phenothiazine. Also, there were no apparent differences between the grub control obtained f~oll1 treating cattle as early as May and those treated at anytime during the subsequent months prior to appearance of grubs on the backs.
Document Type: Research Article
Publication date: December 1, 1958
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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.