Control Methods For Aquatic Plants in Ponds and Lakes

Aquatic plants growing in ponds and lakes are beneficial for fish and wildlife. However, dense growths (over 25% of the surface area) of algae and other water plants can seriously interfere with pond recreation and threaten aquatic life.

The link address is: http://www.ext.vt.edu/pubs/fisheries/420-251/420-251.html