Today we arerify #15 and #6 fairway South. The weather is perfect and with limited availability this fall, today is a perfect day to make progress. This completes 1/2 of the South fairways. We continue on #14 fairway next week.
We will be aerifying fairways this fall in play during the week, as the weather allows. Due to the lack of open Mondays, it will be necessary to perform this very important practice when we have the opportunity. The range of weather conditions is narrow. It must be sunny and dry for the "cores" or "plugs" to dry enough to be pulverized and reincorporated.
We will not "core" aerify greens this fall in order to allow members better access. We will be solid tine aerifying greens which is not disruptive to play.
Thank you Purdue and MSU for this explanation, which I think is pretty good:
What is a Growing Degree Day (GDD)?A growing degree day (GDD) is a method to track the heat units that have accumulated and are needed for plant growth and development. The formula for calculating GDD is: GDD = ((max temperature °F + min temperature °F) ÷ 2) - base temperature °F, where the base temperature is normally either 22, 32 or 50 °F but varies based on the model.
For example, if the high today was 74°F and the low was 52°F and we used a base temperature of 50°F, our calculation would be, GDD= ((74°F + 52°F) ÷ 2) - 50°F = 13
Models that help us predict plant development use accumulated GDD which is simply adding the GDD calculated each day and determining how many GDD units have accumulated thus far.
In some cases accumulated GDD can be used to monitor when weeds might germinate or flower or when grasses might produce a seedhead while in other cases accumulated GDD can be used to help optimize application timing such as with preemergence crabgrass applications or the selection of amines or esters for spring broadleaf applications. Research into plant development and optimal herbicide application timing has determined a window of accumulated GDD needed to best predict when to time these applications or when these events might occur.
The North Course aerification of greens, tees and fairways went great! Perfect weather - dry, low humidity and 65 deg - helped make this process flow perfectly. Thanks to the staff for the long hours and attention to details.