We have been experiencing a number of days with high heat and humidity. With these conditions, turfgrass diseases begin to show up, especially in low areas that hold moisture. Our poorly drained soils also lend to the development of the disease after a rain event. This was the case this past weekend when we began to see the formation of a number of patches throughout the course. On the tees and fairways it was particularly evident. The picture below exhibits what we call, in the turf world, Brown Patch.
The dreaded disease called Pythium was also seen. This turfgrass pathogen is the worst of them all, for each grass blade that it comes in contact with will quickly die. A picture of a patch of pythium is below. Take note of the dark, greasy center.
Thank goodness the patches were small and few. Both diseases were sprayed for with two different control products (i.e. fungicides) and have shown signs of stopping the disease. The Brown Patch areas are healing, but the Pythium patch is completely wiped out.
We make preventative applications throughout the growing season for many turfgrass diseases, but sometimes when the disease pressure is very high our best laid plans may go awry. Mother Nature can be a cruel beast at times.
