Full TGIF Record # 63151
Item 1 of 1
Publication Type:
i
Report
Author(s):Gleason, M. L.; Newton, J. P.
Author Affiliation:Department of Plant Pathology and Veenker Memorial Golf Course, Iowa State University, Ames, IA
Title:Evaluation of fungicides for control of brown patch in creeping bentgrass, 1998
Source:Fungicide and Nematicide Tests. Vol. 54, 1999, p. 492.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Agrostis stolonifera; Disease control; Brown patch; Rhizoctonia solani; Fungicide evaluation; Disease severity; Application rates; Application frequency; Tank mix
Abstract/Contents:"Trials were conducted at Veenker Golf Course on the campus of Iowa State University. Soil type was a Nicollet (fine, loamy, mixed, mesic Aquic Hapludoll). Fungicides were applied to creeping bentgrass maintained at 0.16-inch cutting height, using a modified bicycle sprayer at 30 psi and a dilution rate of 5 gal/1000 ft². The experimental design was a randomized complete block with four replications. All plots measured 4 ft x 5 ft. All plots were bordered on opposite sides by 1-ft-wide strips of untreated turf in order to help create uniform disease pressure. Fungicide applications began on 22 May (Bio-Trek treatments only). The remainder of the treatments received the first application on 10 Jun. Subsequent applications were made on 17, 19, and 24 Jun and 1, 8, 15, and 22 Jul. Weather was exceptionally rainy in June; rainfall in July was normal. Temperatures were normal. Brown patch symptoms were first observed on 29 Jun. Disease development on untreated check plots was light on 29 Jun and moderate on 10 and 22 Jul. Most, but not all, fungicide treatments exhibited significantly (LSD, P=0.05) less disease than the untreated check. Phytotoxicity (browning of tips of grass blade) on plots treated with AMV 300 became progressively worse during July, and was more severe at the higher rate of product."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gleason, M. L., and J. P. Newton. 1999. Evaluation of fungicides for control of brown patch in creeping bentgrass, 1998. Fungicide Nematicide Tests. 54:p. 492.
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