Evaluation of Four Seed-Derived Oils as Controls for Acarapis woodi (Acari: Tarsonemidae) in Colonies of Apis mellifera (Hymenoptera: Apidae)

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Four seed-derived oils were evaluated in field trials as control agents for the parasitic tracheal mite,Acarapis woodi (Rennie), in colonies of the honey bee, Apis mellifera (L.). Seventy-one honey bee colonies infested with the tracheal mite were each assigned to 1 of 4 treatment groups or to a control group. Treatments were peanut, soybean, sunflower, or canola oil, delivered as patties after blending with confectioner sugar (2 parts sugar/l part oil [wt:wt]). All 5 groups had similar mite prevalence values (proportion of infested bees) ,md parasite load scores (a measure of the number of mites per bee) before initiating treatment. Each colony received five 500-g patties delivered approximately every 14 d starting on 16 September 1992 and continuing until 1 December 1992. Mite prevalence values, parasite load scores, and colony weight gains (an indicator of honey production) were measured the following spring. Average mite prevalence values obtained on 4 and 5 May 1993 in the treated groups ranged from 0.015 to 0.027, compared with 0.094 in the control group. The mite prevalence value in each treatment group was less than the mite prevalence value in the control group. Similar differences were observed for parasite load scores. Differences in colony weight gains among the 5 groups were not significant.

Document Type: Research Article

Publication date: August 1, 1995

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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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