Below are links to good sources for guidance for dealing with weeds in the pond.
A good paper at ACES is Weed Management in Lakes and Ponds. The following paragraph and links were extracted from there.
Herbicides Used in Water
Learn how herbicides can be used to control aquatic weeds in the following fact sheets from the Southern Regional Aquaculture Center (SRAC). Alabama Extension is a partner in SRAC, which funds and develops projects to meet aquaculture industry needs. Always read the product label for application methods, specific rates, and weeds controlled.
- SRAC 0360: Aquatic Weed Management: Control Methods
- SRAC 0361: Aquatic Weed Management: Herbicides – Includes advice on uses of specific herbicides.
- SRAC 3601: Aquatic Weed Management: Herbicide Safety, Technology and Application Techniques
- SRAC 3602: Aquatic Herbicide Mode of Action and Use Implications