Spreaders in Relation to Theory and Practice in Spraying

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Fog spraying works out poorly. Much can be said for high power spraying. Spreaders gin' a uniform covering with low pressures. Substances with very low surface tensions, such as saponin and soaps give too thin coatings, caseinate a thicker film deposit without affecting compatibility. Wind and rain doubtless affect efficiency. A suitable spreader, such as calcium caseinate, increases efficiency, as shown by tests with the codling moth, Carpocapsa pomonella, green apple aphis, Aphis pomi and woolly apple aphis, Eriosoma lanigera.

Document Type: Research Article

Publication date: April 1, 1923

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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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