Full TGIF Record # 13298
Item 1 of 1
Publication Type:
i
Report
Author(s):Worf, G. L.; Lee, M.
Author Affiliation:Department of Plant Pathology, University of Wisconsin-Madison
Title:Effect of Rates, Treatment Schedules and Formulations Upon Fungicide Efficacy, 1987
Source:Fungicide and Nematicide Tests. Vol. 43, 1988, p. 281.
Publishing Information:St. Paul: American Phytopathological Society
Keywords:TIC Keywords: Leaf spot; Poa pratensis; Drechslera; Sclerotium delphinii; Fungicides
Abstract/Contents:"Dyrene, Daconil and Chipco 26019 formulations and rates were compared, and single versus multiple applications of Chipco 26019 were examined. Banner rates and a single application of Vorlan also were included. The trial was conducted on two-year-old turf maintained at approximately two-inch cutting height. The plot was fertilized with 1 lb N/1000 ft sq on 18 May and arranged in a randomized complete block design with four replications, each 5 x 9 ft in size. Liquid sprays applied with a CO2-powered sprayer equipped with two 8006 TeeJet nozzles, operating at 50 psi, and delivering 2 gal/ft sq. Granulars were applied with a small cyclone spreader. All treatments were applied on 28 Apr, and additional applications were made on 12 and 26 May as required. Disease severity was estimated with a rating scale of 0 = no symptoms; 1 = few foliage lesions; 2 = few to many foliage lesions; 3 = many foliage lesions; 4 = light crown damage, light to moderate foliage lesions; 5 = light crown damage, severe foliage lesions; 6 = moderate crown damage; 7 = severe crown damage; 8 = very severe crown damage. A quality measurement also was determined by estimating the percent thinning that occurred during the spring and summer. Chipco 26019, Banner and Vorlan significantly reduced disease severity and turf thinning. However, both Chipco 26019 and Banner consistently offered excellent protection. Dyrene 4F, Daconil 2787F and Daconil 90DG provided moderate control. The granular formulations of Dyrene did not control the disease. No phytotoxicity was observed."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Worf, G. L., and M. Lee. 1988. Effect of Rates, Treatment Schedules and Formulations Upon Fungicide Efficacy, 1987. Fungicide Nematicide Tests. 43:p. 281.
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