Control of Spruce Budworm (Lepidoptera: Tortricidae) Eastern Canada with the Experimental Mexacarbate Formulation Zectran UCZF19

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The experimental mexacarbate formulation Zectran UCZF19 was effective in controlling spruce budworm, Choristoneura fumiferana (Clemens), in a trial conducted during 1984 in eastern Canada. The formulation was mixed in both water and an oil-based diluent and applied as double applications at 70 g (AI) in 1.5 liters tank mix per ha with an aircraft (Cessna Ag-truck) equipped with four atomizers (Micronair AU3000). The aqueous mix produced significantly greater percentages of <50 m-diameter droplets than oil-based sprays. High spruce budworm population reductions (85 and 84% corrected mortality) and low defoliation of balsam fir, Abies balsamea (L.) Mill., in blocks treated with oil-based and aqueous sprays (8.6 and 17.3%, respectively) were significantly different from those in untreated blocks.

Document Type: Research Article

Publication date: June 1, 1986

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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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