First, it was and continues to be dry. Despite the last
couple of days, which have featured rain, overall, we are several inches behind
normal. May was 2” behind normal and June was another 3”. When we start falling
that far behind several things become apparent: the inefficiencies of the
irrigation system, that trees easily out-compete turfgrass for water, and even
the most drought tolerant grasses get dry.
No irrigation system is designed to hold up during
significant droughts. Irrigation is a supplement, and bridge, between rain
events. When we must rely on irrigation alone for long stretches, the places of
poor or no coverage become apparent. More information regarding dry stretches
and its affects can be found here and here.
Trees tend to vacuum up all the resources in their vicinity.
Their root systems are extensive and can gather much more than grass. Under
normal conditions, there is enough water for the tree and turf to survive. But,
when drought conditions settle in, the first place to spot it is around the
base of trees because the grass under the tree cannot get enough water anymore
because the tree is taking it all.
Bermuda grass is a drought and heat tolerant grass. Compared
to most turf species, Bermuda grass’s root system is robust. However, even Bermuda
grass still needs water. This leads us to the interesting picture mentioned
above:
This picture is interesting for a couple of reasons: First,
the brown grass on the tee is dry Bermuda grass. It is behind on its water
needs and has started to enter dormancy. Once it receives some water it will
turn green again and resume growth, but until then it is conserving its
resources. Second, notice how there is a straight line across the tee- the far
side of the line is where the Bermuda grass is brown and the near side has
green grass. Mother nature does not often work in straight lines. So, what is
going on? This line is soil related and points all the way to when this tee was
rebuilt during Master Plan construction. The dry half is within the boundary of
the tee box and was constructed of 90% sand, while the near side is built on
native soil. Water moves through the sand much quicker and therefore dries out
much faster than the native soil.
Sometimes, it is like trying to solve a puzzle when we see
changes out on the course. Luckily, knowing the underlying soil characteristics
made understanding this picture much easier.
Etiquette Reminder of the Month
Please enter and exit all bunkers on the low side. While
this may result in slightly more distance to rake, it will keep the sod on the
face of the bunker from tearing. It is also much safer! Thank you.
Also, as part of a Golf Committee initiative to improve
course etiquette, we have included links to videos teaching proper on course
etiquette. Please take a moment to watch:
Ball
Marks - How to properly repair
See you on the course!
Joe
jvillegas@bwrc.org
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