Abstract
The distribution and decay rates of dislodgeable residues of azinphosmethyl applied by two types of air blast sprayers on apple foliage in Ohio were investigated. Leaf discs were taken from nine sites located on the periphery of Cortland apple trees at five dates after spraying. The sprayer delivering the higher airflow rate, but lower velocity, deposited the pesticide much more uniformly over the trees and applied more in the top of the tree. The other sprayer deposited the greatest proportion of pesticide on the site nearest the sprayer. The residue decreased at all sites and ranged from 42 to near 100% decrease at 14 days after spraying.
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Brann, J. L.: Factors affecting use of airblast sprayer. Trans. ASAE7, 200 (1964).
Brann, J. L., P. Steiner, and D. Lisk: Comparison of spray deposits applied at 33X and 2X concentrations. New York State Hort. Soc. Proc. 1967 Ann. Mtg., 183 (1967).
Carman, G. E., W. E. Westlake, and F. A. Gunther: Potential residue problem associated with low volume sprays on citrus in California. Bull. Environ. Contam. Toxicol.8, 38 (1972).
Gavett, E.: Economic implications of imposing field re-entry limits for seven crops treated with organophosphate insecticides. Project leader,Farm Production Economics Div., Econ. Res. Serv., USDA. Contract report for OSHA, Dept. Lab. 250 p. (1973).
Gunther, F. A., W. E. Westlake, and J. H. Barkley: Establishing dislodgeable pesticide residues on leaf surfaces. Bull. Environ. Contam. Toxicol.9, 243 (1973).
Hall, F. R., D. Ferree, and B. Jones: Crop protection and two spraying systems: A preliminary report.Ohio Agr. Res. & Develop. Ctr., Fruit Crop Research Summary60, 5 (1972).
Hall, F. R., H. Forsythe, B. Jones, D. Reichard, and R. Fox: Comparisons of orchard sprayers for insect and disease control on apples.Ohio Agr. Res. & Develop. Ctr. Res. Bull. (in press) (1974).
Himel, C. M.: The optimum size for insecticide spray droplets. J. Econ. Entomol.62, 919 (1969).
Hoerger, F., and E. Kenaga: Pesticide residues on plants: Correlation of representative data as a basis for estimation of their magnitude in the environment. Environ. Quality and Safety1, 9 (1972).
Lewis, F., and K. Hickey: The need for additional studies on pesticide usage in fruit production. Fungicide-Nematocide Report-Results of 1968.24, 1 (1969).
Randall, J. M.: The relationship between air volume and pressure on spray distribution in fruit trees. J. Agr. Engin. Res.16, 1 (1971).
Reil, W. O., J. Beutel, and W. Moller: Use of spray target cards and leaf analysis to measure spray coverage. Cal. Agr.27, 7 (1973).
Sell, W.: Staubausscheidung an einfachen Korpern und in Luftfiltern. Forsch. Gebiete Ingenieurw.347, 1 (1931).
Westlake, W. E., F. A. Gunther, and G. E. Carman: Worker environment research: dioxathion (Delnav®) residues on and in orange fruits and leaves, in dislodgeable particulate matter, and in the soil beneath sprayed trees. Arch. Environ. Contam. Toxicol.1, 60 (1973).
Young, T., and L. Ditman: Factors influencing pesticide deposits on leaf surfaces. Univ. of Md. Bull. A-132. Dec. 1963 (1963).
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Approved by the Associate Director of the Ohio Agricultural Research and Development Center, Wooster, Ohio, as Journal Article No. 39–74. Received for publication July 24, 1974.
Mention of a pesticide or a commercial or proprietary product does not constitute recommendation or endorsement by the authors or their agencies.
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Hall, F.R., Reichard, D.L. & Krueger, H.R. Dislodgeable azinphosmethyl residues from air blast spraying of apple foliage in Ohio. Arch. Environ. Contam. Toxicol. 3, 352–363 (1975). https://doi.org/10.1007/BF02220747
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DOI: https://doi.org/10.1007/BF02220747