Aquatic Herbicide
Many aquatic herbicides can be labeled for both aquatic and landscape use. Most herbicides labeled for landscape use, like RoundUp, can be very harmful to fish and other animals in and around the pond.
Therefore, it is very important to get herbicides labeled for aquatic use if you need to kill weeds in and around your pond. Sanco Industries carries two different aquatic approved herbicides.
Tsunami DQ is a diquat based herbicide used to kill floating and underwater weeds like duckweed and coon tail. Tsunami DQ is a contact herbicide that will burn the weeds back. This means the product has to make contact with the weed and you will have to treat throughout the season to keep the weeds burned back.
Catt Plex is a glyphosate based herbicide used to kill emerged weeds like cattails and water lilies. Glyphosate is the same active ingredient in RoundUp, however RoundUp contains surfactants that may be harmful to your fish.
Tips:
- All herbicides should be applied by spray application in order to get the most effective results.
- If you have excessive vegetation you should only treat a portion of your pond at a time to avoid oxygen depletion.
- Be sure to properly identify your weed before you treat. Some algae is often mistaken for weeds like chara.