At HCC, I have a contract with a company called Mountain Lake and Pond Management. This company treats all waterways on the golf course on a monthly basis. It is very important to stay on top of aquatic weeds and algae. If left unattended, weeds can take over a water body and will lead to numerous other issues. For example, when algae takes over a pond and a high rate chemical application is required, other pond biology is affected. The decomposition (chemical reaction) of algae requires a tremendous amount of oxygen. This is the same oxygen supporting fish life. This is why fish kills are associated with algae blooms. Remaining on a monthly schedule ensures we stay ahead of the curve and avoid such issues.
Above is a clump of Parrots Feather weed floating in club lake. This is one of the more invasive weeds we see. Removing it with a rake only compounds issues by creating new growth.