Full TGIF Record # 114430
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Web URL(s):https://stri.lib.msu.edu/vol66-1990/pdf/sptri90066184.pdf#page=3
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https://stri.lib.msu.edu/vol66-1990/sptri90066184.html
    Last checked: 09/18/2006
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Publication Type:
i
Report
Content Type:Q & A
Corporate Author(s):Sports Turf Research Institute
Title:Take-all patch
Section:Enquiries and replies
Other records with the "Enquiries and replies" Section
Source:Journal of the Sports Turf Research Institute. Vol. 66, 1990, p. 186.
Publishing Information:Bingley, West Yorkshire, UK: The Sports Turf Research Institute
# of Pages:1
Question:"Our bowling green is some 18 months old, being a pure sand construction. Through the latter part of this summer the green has had large areas of bentgrass killed off by take-all patch disease. What brings on this disease and what can we do to restrict damage and prevent further attacks in the future?"
Answer/Response:"Take-all patch disease (causal fungusGaeumannomyces graminis) can usually be diagnosed by the appearance of small patches of bleached or bronzed bentgrasses enlarging into a ring, the centre of which becomes colonised by plants resistant to the disease, e.g. fescues, annual meadow-grass and broad-leaved weeds. On pure sand constructions the main cause of take-all patch occurrence is the lack of natural antagonists in the relatively inert rootzone medium. The application of alkaline materials, e.g. by using sands containing lime or irrigation water of high pH, producing a rapid rise in turf surface pH can lead to severe take-all attacks. Once the disease has become established there is no effective control measure. In time, populations of fungi and bacteria antagonistic to the take-all fungus will build up, providing a natural long-term control referred to as take-all decline. However, this process can take a number of years during which time the green may be severely damaged with the loss of a high proportion of its bentgrass. As is the case with most turfgrass diseases, prevention is better than cure and preventative measures should also speed up the process of take-all decline if the disease is established. Avoid the application of alkaline materials, take-all patch rarely causes extensive damage in acidic turf. If necessary, acidify the turf surface with a fertiliser programme based on acidifying fertilisers such as sulphate of ammonia and light applications of sulphate of iron. Avoid applying fungicides as they are likely to affect antagonists than the take-all patch fungus itself and could, therefore, make the problem worse. However, immediate chemical control measures must still be taken in the event of an attack of fusarium patch disease. Maintain a free-draining turf surface with aeration treatments and by controlling thatch; take-all patch spreads rapidly in wet, water-retentive turf and the fungus over-winters in the thatch layer. Finally, overseed badly scarred areas with fescues which are resistant to the disease."
Keywords:TIC Keywords: Bowling greens; Disease control; Disease identification; Fungicide application; Take-all patch
Language:English
References:0
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sports Turf Research Institute. 1990. Take-all patch. J. Turfgrass Sports Surf. Sci. 66:p. 186.
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Web URL(s):
https://stri.lib.msu.edu/vol66-1990/pdf/sptri90066184.pdf#page=3
    Last checked: 08/30/2006
    Requires: PDF Reader
    Notes: Available to TGIF and STRI users
https://stri.lib.msu.edu/vol66-1990/sptri90066184.html
    Last checked: 09/18/2006
    Notes: Available to TGIF and STRI users
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