Soil Treatments with Insecticides to Control the Root Form of the Grape Phylloxera1,2

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In 1963 and 1964 root galls caused by Phylloxera vitifoliae (Fitch) on bearing Agawam and Delaware grapevines in well-drained clay loam soil in the Niagara Peninsula of Ontario were reduced significantly by Baygon® (o-isopropoxyphenyl methylcarbamate) applied at 10, 27, and 30 pounds of actual toxicant in drenches of 400--500 Imperial gallons of water per acre and sealed with an additional application of at least 3 times as much water. Zinophos® (O,O-diethyl 0-2-pyrazinyl phosphorothioate) , similarly applied at 10 and 30 lb actual per acre, was less effective, and hexachlorocyclopentadiene was not effective. In 1965 and 1966 Baygon at 10, 15, and 20 pounds on a poorly drained clay loam soil did not reduce injury significantly on Catawba and :Elvira vines. In small-scale applications on single-vine plots disulfoton, endosulfan, and Niagara 10242 (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate) also were ineffective. A significant reduction in number of root galls did not increase yield, sugar content, or wood weight of Delaware grapes.

Document Type: Research Article

Publication date: October 1, 1968

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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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