As the calendar flips to September, the stress to cool
season turf starts to subside (usually; though the first week of September
this year will be the hottest week all year!). We also have major chemical
applications on the Bermuda grass to help ensure that next season
is as good as possible.
Part of the difficulty of managing any turfgrass, but especially
Bermuda grass, is that many of the agronomic programs that we implement won’t
show results, good or bad, for many months. We execute our plan in the fall,
but we don’t know if it worked until at least the following spring, and in the
meantime, there is nothing more we can do. We must make observations, take
notes, and plan accordingly for our chance to improve that next fall.
One of our first major items currently is a pre-emergent
herbicide application. This application prevents weeds from growing in the Bermuda
grass while it is dormant all winter. The rule of thumb is to have the application
made by Labor Day. We made our spray last Monday and everything went according
to plan. We have a couple of other tools to help take care of weeds that grow
over the winter, so all is not lost if we do start to see some breakthrough.
That is not always the case with some of our Bermuda grass management.
Starting September 1st, we monitor soil
temperatures for our Spring Dead Spot (SDS) applications. You can track some of
the evolution in current research and understanding for treatment by reading
some of the past blogs here,
here,
and here.
Those blogs illustrate how our program has changed. Regardless, September is
the time to start preparing so that we are ready when the soil temperatures are
optimal.
But why do we have to be so precise? First, we are always
trying to be precise when making any pesticide applications. We have a specific
target and chemical and we apply it only where needed. But, with SDS, the
chemicals are expensive, and the pathogen is very difficult to control. Missing
the window would be an enormous waste. Unfortunately, even if we make our
application on time exactly, we don’t know the results for 6-8 more months. There
really is no indication of percent control for that long, so we are not able to
make a rescue application in the winter to help.
If we spray too early, the fungi have time to rebuild their
population and infect the turf. If we spray too late, the infection has already
occurred, and chemical is no longer effective. And even if we spray right on
time, it has not been shown that 100% control can be achieved, we are working
to get as close to 100% as possible only.
All of this makes September a crucial month for the Grounds
department. Aside from the best golfing time of the year, it is also an
important agronomic time as well.
Happy Labor Day
Etiquette Reminder of the Month
Please be conscious not to scuff your feet or drag your
putter along the surface of the putting green. This can adversely affect other
people’s putts and can damage the turf grass.
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
Golf
Cart tips
See you on the course!
Joe
jvillegas@bwrc.org