Two New Phosphate-Oil Combinations for Scale Control on Deciduous Fruit Trees in the Dormant Period1
Authors: FULLMER, O. H.; KURTZ, E. A.; WADE, W. H.
Source: Journal of Economic Entomology, Volume 52, Number 3, June 1959 , pp. 373-376(4)
Publisher: Entomological Society of America
Abstract:Ethion-oil and Phostex® (a mixture of bis(dialkyloxyphosphinothioyl) disulfides)-oil sprays applied during the dormant period have given excellent control of San Jose scale, Aspidiotus perniciosus Comst.; olive scale, Paratoria oleae (Colvée); European fruit lecanium, Lecanium corni Bouche; and frosted scale, L. pruinosum Coq. Trials conducted over a 2-year period indicate that ethion-oil and Phostex-oil sprays provide control equal or superior to that obtained with standard materials with less possibility of tree injury. All the experimental tests were conducted on deciduous trees in California. The optimum toxicant to oil ratios are discussed, and minimum dosages for satisfactory control are given. Ethion-oil and Phostex-oil mixtures are compatible with basic zinc sulphate, zinc carbamate, and fixed copper compounds. Ethion-oil mixtures also have been combined with limesulfur and sodium polysulphide whereas Phostex-oil is not compatible with these two materials.
Document Type: Research article
Publication date: 1959-06-01
- 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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