If you have not yet had a chance to read the latest turfGRASS CLIPPINGS from the greens department website, you should take a moment to do so. The topic, the effects of a warm and dry winter, is especially relevant this year. Personally, I don’t think the article does enough to emphasize the effects of our current winter so I am going to expand on that concept here.
Just so you don’t think I am being a downer, I am happy for the membership that they were able to utilize the golf course so much this winter. Last winter the golf course was essentially unusable due to the fact that it seemed to snow once a week.
My first comment is, snow is not bad for turf. Most of you probably already have heard that it insulates the turf and root zone. Snow also covers the plants which protect it from those windy, cold, my face hurts from being outside kind of days. What I also like about the snow, is that it keeps traffic off the course. Ball marks, scuffing, sheared plants, and frost damage do not heal over the winter. Any and all damage that is incurred during the winter, is still there come April. Once you incorporate the size of our greens and the limited variability of foot traffic, you have some areas receiving more damage than they potentially can handle.
Our greens in particular, are a healthy mix of both Bentgrass and Poa(pronounced poe ah). NOW THE SCIENCE…..By nature, and unaffected by cultural inputs, Bentgrass takes an additional 3 to 4 weeks to come out of winter. Bentgrass requires warmer soil temperatures than Poa and that is why the Poa begins growing first. Due to Poa populations, it is necessary that we inhibit seed growth via chemical applications. These chemical applications begin in March, just as the Poa is getting healthy. The chemical is aggressive enough that you significantly reduce growth for up to 7 weeks. So, now you have all this damage on greens, Bentgrass hasn’t started growing yet, and the Poa growth is severely stunted. The end result is potentially a longer period of time before we can return the greens to a higher standard of playability. We are not saying that because of a warm winter our greens will suffer all year, we are simply stating that more effort and resources will be required at the onset of spring.
Some golf courses, and less now because of the economy, do not allow any play on greens during the winter. Whether they cover greens or simply restrict play, the overall premise is that they are trying to ensure they have a quick, healthy start up in the spring. Some professionals in our industry feel that the winter income outweighs the additional maintenance costs, while others feel that no chances should be taken during the winter that could potentially set you back in the spring.