Greenskeeper Martinho Dias is using a Hydroject machine on #2 Green. The machine injects high pressure jets of water to open a small holes in the green. The holes allow water to penetrate and for gasses in the soil to freely exchange with atmosphere. This machine has been s a big part of our program avoiding regular core aeration in the greens.
This fall marks the 19th year we've been able to maintain the greens without any disruptive plugging. The program was designed to keep bent grass as the dominant turf type, which has also allowed for almost no pesticide use on the greens.