Continuous Recording of H2O Spray Spot Images Across the Sprayed Swath on 35-mm Film1
Author: CARLTON, J. B.
Source: Journal of Economic Entomology, Volume 60, Number 3, June 1967 , pp. 744-748(5)
Publisher: Entomological Society of America
Abstract:A technique for recording water spray spot images continuously across a spray swath on 35-mm film is described. Although the technique was developed for aerial-spraydeposit studies. it can be used in studies of much narrower swaths.
One hundred- foot lengths of 35-mm film were specially prepared as the spray sampling surface. The spray solution of H20 and black Nigrosine dye was sprayed over the film. Specially prepared film holders were made to hold the film, and spray passes were made flying at right angles to the film sampling line. The sprayed sample was printed by a 35-mm motion-picture contact printer. After the print was developed, a small. compact, permanent copy of the spray deposit was available for study of drop sizes. An empirical relation was derived to express the spherical drop diameter as a function of the spot diameter on the film.
Document Type: Research Article
Publication date: June 1, 1967
- 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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