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| Web URL(s): | https://stri.lib.msu.edu/vol55-1979/pdf/sptri79055172.pdf
Last checked: 09/14/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Report |
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| Content Type: | Q & A |
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| Corporate Author(s): | Sports Turf Research Institute |
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| Title: | Dark coloured patches |
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| Section: | Enquiries and replies
Other records with the "Enquiries and replies" Section
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| Source: | Journal of the Sports Turf Research Institute. Vol. 55, 1979, p. 172. |
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| Publishing Information: | Bingley, West Yorkshire, UK: The Sports Turf Research Institute |
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| # of Pages: | 1 |
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| Question: | "This spring we have been puzzled by the appearance of almost black patches on the surface (sample enclosed) at several points on the green. Is this dangerous and is there any method of control?" |
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| Answer/Response: | "On examination the cause of the dark patches proves to be a species of blue/green algae which is growing on top of the turf sample. The condition is fairly common, the algal growth developing usually on areas where the grass is relatively sparse. As a rule the algal growth is a sign that the surface is slow to drain due to over-compaction, too heavy a soil or some other cause. The algae does not harm the turf in any way but it is unsightly and can be something of a nuisance if the green is in play. Control can usually be achieved fairly easily by local watering on of sulphate of iron in solution - 17 g in 5 litres of water/2 m2 (1/2 oz. in 1 gal. water/2 sq. yd.). The algae will return, however, in wet weather unless the surface drainage is improved. Plenty of spiking and dressings of very sandy compost are the obvious remedies, and sometimes it is useful to include a quantity of wood charcoal in the top dressing - up to 0.5 kg/m2 (1 lb./sq. yd.) of 3 mm (1/8 in.) mesh." |
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| Keywords: | TIC Keywords: Algae control; Algicides; Drainage improvement; Problem diagnosis; Sports turf maintenance
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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):
Sports Turf Research Institute. 1979. Dark coloured patches. J. Turfgrass Sports Surf. Sci. 55:p. 172. |
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| Web URL(s):
https://stri.lib.msu.edu/vol55-1979/pdf/sptri79055172.pdf
Last checked: 09/14/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users |
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MSU catalog number: SB 433 .A1 S63 |
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