We have been spraying out the cool-season weeds from the bermudagrass fairways and rough over the past month. The cool-season weeds (mostly ryegrass and poa annua) compete with the bermudagrass for water, light, and nutrients. The removal of these weeds will allow the bermudagrass to emerge from dormancy in the spring without competition from these weeds so it can fully develop into a uniform stand of healthy turf.
The picture below shows the results of our spraying next to the 2nd green. We purposely stay away from the green edges because the herbicide is toxic to the bentgrass greens. The remaining portion of ryegrass next to the green surface will be removed this winter using herbicide laced paint brushes.
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