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| Web URL(s): | https://gsrpdf.lib.msu.edu/?file=/1930s/1933/330582.pdf#page=2
Last checked: 01/25/2017
Requires: PDF Reader |
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| Publication Type:
| Professional |
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| Content Type: | Q & A |
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| Corporate Author(s): | USGA Green Section |
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| Title: | Yellowing of turf in winter |
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| Section: | Questions and answers
Other records with the "Questions and answers" Section
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| Source: | The Bulletin of the United States Golf Association Green Section. Vol. 13, No. 3, May 1933, p. 83-84. |
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| Publishing Information: | Washington, DC: USGA Green Section |
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| # of Pages: | 2 |
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| Question: | "Our turf in winter is affected in a manner not specifically mentioned in your article Turf Diseases and Their Control in the Bulletin for August, 1932. The winter in Japan is not very severe, and it seldom snows, but toward February, the coldest month of the year, the grass becomes frost-bitten and parts of the green discolored, having a tinge of the blackish brown, although as the weather gets warmer the grass resumes its usual greenish color. The trouble is that there are a lot of "yellow blights" in winter in place of brownpatch in summer. The blade of the grass becomes yellowish in some sections, probably due to overfertilzation or underfertilzation. Your suggestions will be appreciated." |
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| Source of Question: | Japan |
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| Answer/Response: | "The general discoloration of grass in the winter months to which you refer and which is common thoughout the United States is a natural response of the grass to cold. When warm weather returns the discoloration soon disappears. The yellowing which you mention however is probably something else. If it occurs in definite patches somewhat like the snowmold or brownpatch diseases, it may be caused by the snowmold fungus or a similar fungus active at low teperatures. If it is in more or less indefinite areas it might be caused by poor drainage. In some cases it is found that where there are little depressions in the surface, water may collect, and even though there may be no water covering the grass in these areas the soil may be entirely too wet, resulting in a poor root system, which often leads to the yellowing of grass blades over a large area. In such cases the injury is more or less confined to areas which are lower than others. If the yellowing occurs rather well scattered over the putting green it may be due to a deficiency of iron or some other fertilizering element in the soil. Sometimes a yellowing grass is found, particularly in the fall, winter, and early spring, where a fertilizer too high in phosphoric acid, as for example bone meal, has been used. This has been explained as due in part at least to a chemical reaction in the soil whereby the phosphoric acid combines with the iron and makes it unavailable to the plant. If this is your difficulty you will find that the grass will quickly regain its color if you apply a little sulphate of iron in solution. It is suggested that you try the iron on a small area of one of your greens badly affected, and if improvement results as evidenced by a marked difference between the treated and untreated areas, the same treatment may well be given to the entire putting green. It is suggested also that you have the affected grass examined by a plant pathologist located at one of your universities with a view to identifying the cause of the yellowing." |
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| Keywords: | TIC Keywords: Ferrous sulfate; Low temperature discoloration; Nutrient deficiency; Problem diagnosis; Recommendations; Temperature response
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| Geographic Terms: | Japan |
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
USGA Green Section. 1933. Yellowing of turf in winter. Bull. U.S. Golf Assoc. Green Sec. 13(3):p. 83-84. |
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| Web URL(s):
https://gsrpdf.lib.msu.edu/?file=/1930s/1933/330582.pdf#page=2
Last checked: 01/25/2017
Requires: PDF Reader |
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MSU catalog number: SB 433.15 .B85 |
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