Spraying Equipment for Citrus Trees in California


Source: Journal of Economic Entomology, Volume 16, Number 6, December 1923 , pp. 494-497(4)

Publisher: Entomological Society of America

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There are two citrus districts in California,--Tulare County with medium sized open trees, where good results can be obtained with usual four horsepower spray machine,--and Southern California, with larger, denser trees, where the largest orchard sprayers (10 horsepower), are required. These machines have a capacity of 15 to 20 gallons per minute and carry 350 and more pounds pressure. Spray guns are used almost exclusively, with disc apertures ranging from 7/64 to 9/64 inches.

In Tulare County the average tree requires 8 to 10 gallons of solution, making a cost of 4 to 15 cents per tree for the application, and in Southern California, requiring 12 to 15 gallons, making the cost of applying run from 6 to 19 cents per tree.

Document Type: Research Article

Publication date: December 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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