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| Web URL(s): | https://listings.lib.msu.edu/iowat/1989.pdf#page=38
Last checked: 01/10/2017
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Gleason, M. L. |
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| Title: | Evaluation of Fungicides for Control of Brown Patch on Bentgrass - 1988 |
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| Source: | 1989 Iowa Turfgrass Research Report. July 1989, p. 34-35. |
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| Publishing Information: | Ames, Iowa: Iowa State University |
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| Keywords: | TIC Keywords: Agrostis; Disease control; Brown patch; Fungicide evaluation; fungicides; Application rates; Phytotoxicity
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| Abstract/Contents: | Assessed effect of various fungicides on control of brown patch and degree of browning on two adjoining bentgrass greens in 1988. Fungicides were applied to bentgrass maintained at 5/32 in cutting height, using a modified bicycle sprayer at 30 psi and a dilution rate of 5 gal/1000 ft2. The experimental design was randomized, complete-block plan with four replications. Treated plots were alternated with untreated plots, so that no treated plots were adjacent to each other. All plots meansured 4 ft by 5 ft. Fungicides were applied on a 14-, 21-, or 28-day schedule. Applications began on June 7 and continued through August 15. Brown patch symptoms appeared on about July 16. Plots were evaluated for percent of diseased turf on July 19 and August 19. A table provides fungicides used, rate and timing of application and disease ratings in July and August. Brown patch development on July 19 was severe on check plots. By August 19, disease development on check plots was light to moderate. Several treatments had brown patch development that was not significantly less than the check plots. Of these, the most consistently ineffective product was Terraneb SP at the rates tested. Most treatments reduced brown patch symptoms significantly below levels in check plots, and nine of these treatments gave 100% suppression of brown patch on both rating dates. Several treatments produced a slightly enhanced green color in the turf on both rating dates. These included: SAN 619F, SAN 832F at both rates, and ICIA 0523 at both rates. Spotless 25W, at the 0.25 a.i. rate and both 14- and 21-day treatment intervals, caused a slight browning of the turf in July and August. |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gleason, M. L. 1989. Evaluation of Fungicides for Control of Brown Patch on Bentgrass - 1988. Iowa Turfgrass Res. Rep. p. 34-35. |
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| Web URL(s):
https://listings.lib.msu.edu/iowat/1989.pdf#page=38
Last checked: 01/10/2017
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 I55 |
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