We have treated the Duckweed in #8 pond. The normally green weed will turn an orange like color then sink. This should occur over the next few days.
There are a few greens out on the course (mainly #1, #9, #10 and #12) with some areas of moss. We are treating this with a herbicide and you may have noticed the moss going from a green color to black as seen in this photo.
These areas should be completely gone shortly after the second application of the herbicide in two weeks time.