The incredibly mild conditions so far this winter - with a mild
November and the warmest December on record - has highlighted the
current topsy-turvy weather patterns. Some areas experienced no
frosts until the second week of January this year, compared to the
record cold and prolonged snow experienced in the winter of
2010/11. Groundsmen and greenkeepers have had to contend with turf
growth continuing, all be it slowly, right through the winter.
If February repeats the experiences of recent years, there is
every chance that further mild weather will be on the cards. Since
1997, 14 of the 15 seasons have seen above long-term average
temperatures for February, excepting 2010. Although last year was
relatively dull, the lengthening days do mean we
typically enjoy 50% more hours of sunshine in February,
compared to January.
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Table 1. February 2011 followed some
incredibly cold winter weather with temperatures two degrees above
the norm and significantly fewer frosts. Despite the warmer weather
it was still dull and wet.
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Av Temp (°C)
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Sun (hours)
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Rain (mm)
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Days with air
frost
|
|
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2011
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Diff to 30-yr av.
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2011
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Diff to 30-yr av.
|
2011
|
Diff to 30-yr av.
|
2011
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Diff to
30-yr av.
|
|
UK
|
5.3
|
+ 1.9
|
52
|
- 21%
|
115
|
+ 32%
|
5
|
- 6
|
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N. England
|
5.4
|
+ 2.1
|
51
|
- 20%
|
116
|
+ 72%
|
3
|
- 8
|
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S. England
|
6.5
|
+ 2.3
|
45
|
- 35%
|
58
|
+ 3%
|
3
|
- 7
|
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Scotland
|
3.7
|
+ 1.2
|
56
|
- 9%
|
167
|
+ 35%
|
8
|
- 5
|
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Wales
|
6.1
|
+ 2.2
|
52
|
- 21%
|
130
|
+ 14%
|
4
|
- 6
|
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N Ireland
|
5.8
|
+ 1.6
|
68
|
+ 12%
|
137
|
+ 58%
|
5
|
- 4
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Whilst parts of northern England and Scotland have already
experienced record rainfall this winter, for many, particularly in
the southern regions, one of the greatest concerns has been the
lack of water to replenish groundwater aquifers - raising the
spectre of shortages and early restrictions on irrigation over the
coming season. In recent years, February rainfall has typically
fallen well short of average for large parts of the country, and
has proven a precursor to exceptionally dry spring conditions.
Water use efficiency and getting the most from available resources
with wetting agent programmes is likely to be more important than
ever this season.
The lack of frost to really penetrate the ground is likely to
have allowed Fusarium Patch to develop in the turf and thatch
layer, where it could flare up with the onset of wet surface
conditions. Using the free GreenCast website - www.greencast.co.uk - to
predict periods of disease conducive weather can help turf mangers
time preventative fungicide applications more effectively and get
the most out of the treatments.
Whilst turf growth remains slow or non-existent in cold
conditions, the Contact+ activity of Medallion TL is most
appropriate. However, once consistent growth commences in spring,
the fast moving 'cool weather systemic' activity of Banner Maxx may
be more appropriate; during the difficult intervening period, when
growth can be inconsistent, the multi-active Instrata covers both
options.
With typically little potential for recovery through February,
protecting against any loss in turf cover and quality, as a result
of disease attacks, remains essential t. Any damage will be further
exacerbated by heavy wear and tear, as players seek to make up for
games cancelled or course closures due to frost and snow.
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Warmest
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Coldest
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Wettest
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Driest
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Sunniest
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Dullest
|
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On record
(since 1914)
|
1998
(6.8ºC)
|
1947
(- 2.0ºC)
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1990
(188 mm)
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1932
(9 mm)
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2008
(103 hours)
|
1940
(37 hours)
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Past decade
(2001 - 2011)
|
2002
(5.5ºC)
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2010
(1.9ºC)
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2002
(175 mm)
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2009
(60 mm)
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2008
(103 hours)
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2009
(52 hours)
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Table 2: February
weather highs and lows. The last decade has been typically
less extreme, with a trend towards warmer, drier
weather.
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February Top Tips
- Watch for potential damage from players' spikes and
studs as frozen turf surfaces defrost; especially tees and sports
pitches
- Be aware of stress on turf plants when frost follows
warm days - increasing susceptibility to damage
- Use contact fungicides during periods of slow or zero
growth
- Take the opportunity to review free turf management
information on GreenCast
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