Full TGIF Record # 18048
Item 1 of 1
Publication Type:
i
Report
Author(s):Worf, Gayle L.; Smejkal, Catherine
Title:Anthracnose Control Studies at Nakoma Golf Course, 1989
Source:Wisconsin Turf Research: Results of 1989 Studies. Vol. 7, 1989, p. 46-48.
Publishing Information:Madison: University of Wisconsin, in cooperation with the Wisconsin Turfgrass Association.
Keywords:TIC Keywords: Anthracnose; Disease control; Fungicides; Fungicide evaluation; Application rates; Application frequency; Chemical control; Root depth; Application timing; Nitrogen fertilization; Fertilization rates
Abstract/Contents:Tested, registered, and experimental fungicides at various rates and schedules for preventative or therapeutic anthracnose control on Poa fairways at Nakoma Golf Course. In the preventitive and therapeutic trials, treatments were applied in 3 replications twice at 14 or 28 day intervals with low N (1lbN/1000ft2 (m) on 6/15 and 0.5lbN/m on 7/15) or high N (an additional 0.5N/m on 6/30 and 8/9). The preventative trial used 26 treatments and measured root depth on an unspecified date. Fertilization rate did not effect root depth. Preventative treatments strikingly protected the fairway from anthracnose incidence relative to: 1) nontreated fairway areas and 2) areas protected both demethylatin inhibitor fungicides applied by the superintendent. Treatments varied significantly in root depth but these differences may not have had biological significance. Rubigan at labeled rates did not damage the Poa turf. Bayleton did not reduce root depth as it had in the previous year. The therapeutic trial used 10 treatments with applications on 8/4 and 8/18 and disease ratings on 8/4, 8/9, and 8/31. Treatment plots differed in disease incidence prior to initial application. Then, symptoms increased greatly within 5 days after first treatment, regardless of treatment. Several improved after 8/9, suggesting the damage period can be minimized by choosing the proper treatment. No phytotoxicity was noted in the trials.
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Worf, G. L., and C. Smejkal. 1989. Anthracnose Control Studies at Nakoma Golf Course, 1989. Wis. Turfgrass Res. Rep. 7:p. 46-48.
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