Low Volume Applications to Citrus Trees: Effectiveness in Control of Citrus Red Mite and California Red Scale with Petroleum Oils and Pesticides

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Abstract:

Low volume sprays (LV = 50–100 gal/acre total spray) of petroleum oil and pesticides were applied to citrus trees to determine their effect on populations of citrus red mite, Panonychus citri (McGregor), and California red scale, Aonidiella aurantii (Maskell). Selection of LV equipment and its rate of travel, operating pressure, and the size of the nozzle orifices as well as their placement on the equipment was based on spray distribution studies. LV applications of most evaluated acaricides and the petroleum oil fractions effectively controlled citrus red mite. California red scale was not effectively controlled by LV applications of petroleum oils, malathion, azinphosmethyl, and carbaryl, but this scale was effectively controlled by the LV applications of parathion and by certain combinations of oil and malathion, oil and azinphosmethyl, or oil and carbaryl.

Document Type: Research Article

Publication date: June 1, 1974

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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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