Last week, you saw a process get done to the putting greens that was done this time last year. In simple terms, we dethatched the greens. Although the concept is similar to aeration in the spring time, it certainly doesn’t take the place of it. In fact, it removes more surface material than a traditional aerator would. It allows for each putting green to be treated with sand and it gives the sand a little slit to nestle into. The machine is called a Rotadairon. A very detailed explanation can be seen here on their website. The service was provided by Mike Parks from Hillcrest Turf Services (http://www.hillcrestturfservices.net) located right here in Massachusetts. The purpose of running this machine over all 39 greens is to remove the “thatch” layer that builds up over the duration of multiple golf seasons. Although we aerate the greens every year, that machine only pokes holes and removes material 2″ on center (process can be read about here). Sand is then applied to fill the holes in. However, the Rotadairon cuts into the surface approximately 0.5″ – 0.75″ over a 53″ width. It collects and removes all of the thatch material allowing for immediate air exchange to the roots and improved surface drainage. During the process last week, we mowed the greens, ran the Rotadairon, mowed the greens again to remove the very little debris left behind, blew off the collars, rolled the green, topdressed, fertilized, and watered-in. The topdressing sand is a 1mm sand. This is used because it has a much larger pore space than thatch or traditional soil. The sand will allow for the bent-grass plants to continue to creep and become more dense. This week, we are topdressing again and fertilizing again with a slightly different material. Overall, the achieved result is a firmer, faster, healthier putting green. With the right weather, the greens will be near perfect again by the weekend. Apologies for the short inconvenience. Below, are a few pictures and videos of the machine in action! See you on the course!

The attachment is a PTO driven attachment with over 100 blades!

An underneath view of the machine.

An up close look at the green surface after the Rotadairon has passed.

Clip from 1 North green

-Jason VanBuskirk, Superintendent