Boophilus annulatus1 and B. microplus:1 Laboratory Tests of Insecticides2,3

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Engorged females of the cattle tick, Boophilus annulatus (Say), and the southern cattle tick, B. microplus (Canestrini), were dipped in emulsions, suspensions, or solutions of 30 insecticides. The effect on estimated reproduction (ER. ER = g eggs/g X estimated % hatch X 20,000) was determined, and the percentage reductions in ER afforded by several concentrations of each insecticide were analyzed by the log probit method. The results were presented in terms of concentrations of insecticides affording 50% (IC50) and 90% (IC90) inhibition of reproduction. Rankings by b, IC50 and IC90 values for the 2 species showed a highly significant statistical relationship. Also, the ranking of IC50, values was significantly related to the ranking of the same treatments applied as sprays to cattle.

Document Type: Research Article

Publication date: February 1, 1973

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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