Everytime The Open Championship is conducted, there are always great discussions of the way they condition their courses compared to here in the States:
For one complete year prior to the past three Open Championship's held at St. Andrews, golfers are usually required to hit off of synthetic turf mats when hitting off of the fairways so they would not leave a divot.
In the 1960's there was a severe drought when Arnie won at Troon (I believe thats the correct venue?) and the contestants complained about the lack of turf. From that point forward the R & A quietly installed irrigation wall to wall on all of the courses that were and are in The Open rotation. Because of their unique climate, they usually only turn the sprinklers on the tees, fairways and roughs to keep the turf alive. Some of the sprinkler head covers have synthetic turf attached to them to hide them and to be able to find them, e.g., The Old Course.
Sod wall revetted bunkers are usually replaced every 2-5 years (sometimes at longer intervals) prior to each Open at St. Andrews. I have seen them many times strip the sod "bricks" from outer areas in the roughs and from their other courses in the Links Trust, instead of buying the bricks.
I was over giving a speech at the BIGGA Conference in Harrogate in January 2004 and I interviewed the Head Greenkeeper at St. Andrews. I asked him how much he normally fertilized and applied pesticides in a typical year. He stated that he had not fertilized fairways or roughs on The Old Course for 8 previous years and had not applied a herbicides, fungicide or insecticide in 5- years prior. I asked him how he accomplished this and he said that by controlling the water by not using the irrigation system unless he had to - and by having good drainage - he could control pesticide usage by keeping everything "dry." He also said that the grass clippings were not intentionally picked up on the tees, fairways and roughs and the grass clippings provided natural organic material that helped sustain green color and growth.
During the Open, a greenkeeper goes and stays with their assigned respective pairing during the entire championship and carries a large wooden rake with 4- inch long wooden teeth and rakes the bunkers instead of the caddies doing it. The greenkeepers then repair divots after play each day.
Cheers,
Terry Buchen, CGCS, MG