The Efficiency of Various Spray and Dust Mixtures in Controlling the Rosy Aphis

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Lubricating oil emulsion, wettable sulfur with nicotine sulfate, and nicotine dust (2 per cent nicotine) controlled the rosy aphis (Anuraphis roseus), altho none of these preparations were quite so effective as lime-sulfur with nicotine sulfate, which is the standard treatment. The spray mixtures should be applied preferably during the delayed-dormant period, while dust mixtures containing a 2 per cent nicotine will probably give best results when used for the pre-pink treatment. Dust and spray mixtures applied during the pink and calyx periods gave in most instances inferior control.

Document Type: Research Article

Publication date: February 1, 1925

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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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