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| Web URL(s): | https://stri.lib.msu.edu/vol70-1994/pdf/sptri94070142.pdf#page=2
Last checked: 08/30/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users
https://stri.lib.msu.edu/vol70-1994/sptri94070142.html
Last checked: 09/18/2006
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: | Anthracnose |
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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. 70, 1994, p. 143-144. |
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| Publishing Information: | Bingley, West Yorkshire, UK: The Sports Turf Research Institute |
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| # of Pages: | 2 |
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| Question: | " I always believed anthracnose was a disease associated with poor drainage, yet this summer we have seen the disease on the driest parts of our driest greens! Can you please explain this phenomenon and advise on its regulation?" |
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| Answer/Response: | "Anthracnose disease is, as you rightly point out, usually associated with wet surface conditions. However, there are other factors which can induce disease activity such as low nitrogen levels, but in any instance where Poa annua is under stress anthracnose may be found. The fact that you are employing a management policy of minimal water and fertilising could well be putting P. annua under too great a stress on naturally dry stretches of ground. It was interesting to note a very vigorous Agrostis sward through the main body of the greens but a sparse cover in dry zones, made up of a mixture of Agrostis, a small proportion of wiry, Festuca and anaemic P. annua. To high ground the soil is powder dry indicating that irrigation is either missing these areas or shedding straight off. Associated with this may be a lack of available nitrogen, due to inadequate soil moisture or retention of irrigation at the base of the stem because it cannot penetrate into the soil, producing local boggy conditions, albeit short-lived, favouring shallow rooting and a weak turf susceptible to anthracnose. Whatever the knock-on effect, the thrust of improvements must ensure penetration of water through depth on these high spots. Continue with the basic philosophy of minimal irrigation and feeding but to weaker stretches of turf this has, in essence, become total abstinence. Redressing this scenario will involve localised aeration, preparing the ground for wetting agent application - most successful if applied through a hand-gun - and hand watering to make up for deficiencies with the automatic system. The Toro HydroJect may be worth hiring to moisten the soil through depth in a single pass with its water injection, a process which can prove difficult by conventional aeration techniques at the height of summer. Autumn hollow tining then working in a granular seaweed extract may hold moisture in drier areas. Returning to the original subject of your question, anthracnose disease. Observation suggests that boosting soil potassium can reduce the incidence of anthracnose. If the disease is widespread then it can be checked with an approved fungicide containing chlorothalonil." |
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| Keywords: | TIC Keywords: Anthracnose; Disease control; Disease incidence; Disease profile; Irrigation rates; Recommendations; Soil moisture
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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. 1994. Anthracnose. J. Turfgrass Sports Surf. Sci. 70:p. 143-144. |
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| Web URL(s):
https://stri.lib.msu.edu/vol70-1994/pdf/sptri94070142.pdf#page=2
Last checked: 08/30/2006
Requires: PDF Reader
Notes: Available to TGIF and STRI users
https://stri.lib.msu.edu/vol70-1994/sptri94070142.html
Last checked: 09/18/2006
Notes: Available to TGIF and STRI users |
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MSU catalog number: SB 433 .A1 S63 |
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