Cabomba / Fanwort
Fanwort, Cabomba caroliniana, is a rooted aquatic plant that produces red stems up to 6 feet long. Leaves branch opposite of one another and appear like small fans.
Fanwort spreads through fragmentation and seeds. Free floating fragments of fanwort can survive for up to 8 weeks. It can grow in water up to 10 feet deep.
Fanwort outcompetes desired aquatic plants. It is recommended to control Fanwort Cabomba if spotted because it spreads easily in a wide depth range.
Chemical treatment options:
Sonar provides the best long term control for fanwort. Sonar reacts slowly, taking 30-60 days for results. The entire pond must be treated for success. This treatment option is only for ponds with little or no flow coming into the pond. Sonar AS, Sonar One and Sonar RTU are available options.
Propeller is fast acting treatment option. Propeller comes in granular form but is dissolved in water and tank sprayed in areas where fanwort grows.