Aquatic Herbicides and Algaecides (chemicals) have been useful tools for pond management for decades. Once a pond becomes infested with weeds and/or algae, a chemical application may be your best solution to gain control, at least for the short-term.
The problem is an abundance of suspended nutrients and the organics (muck) that have settled to the bottom of your pond. Contributing factors can be a such things such as surface water runoff, grass clippings and fertilizers just to mention a few.
Use chemical only as a tool in your management practice. Always remember to run your aeration system before and after chemical applications. This will increase oxygen levels and enhance the effectiveness of the application.
Call 877 780-1174 to discuss the potential treatments you may want to use for various pond weeds. We can help you decide what products you may want to use.