Use of spray target cards and leaf analysis to measure spray coverage
AuthorsW. O. Reil
J. A. Beutel
W. J. Moller
Authors AffiliationsW. O. Reil is Staff Research Associate, Department of Plant Pathology, University of California, Davis; J. A. Beutel is Extension Pomologist, Department of Plant Pathology, University of California, Davis; W. J. Moller is Extension Plant Pathologist, Department of Plant Pathology, University of California, Davis.
Hilgardia 27(6):6-8. DOI:10.3733/ca.v027n06p6. June 1973.
This report evaluates a method used to determine the uniformity of spray coverage in a pear fireblight control experiment in 1972. Trees used for the experiment were mature 14-year-olds in a hedgerow planting at 11 hy 22 ft spacing. The trees were uniform in size, vigorous in growth (many 5-ft shoots per season) and completely grown together in the hedge. Standard vase-shaped pruning was practiced, giving a diameter of approximately 14 ft, with a height of 15 ft after dormant pruning.
Also in this issue:Reorganization of University of California's agricultural experiment station
Evaluation of chemical treatments on pear, '70, '71
Streptomycin-resistant control studies, 1972
Effects of control sprays on russetting of Bartlett pears
Nonmercury fungicides for control of seedling disease of cotton
Using organic wastes as nitrogen fertilizers
Diagnosing potassium deficiency by soil analysis
Response of Thompson Seedless grapes to 4-chlorophenoxyacetic acid and benzothiazol-2-oxyacetic acid