Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants American Pondweed

There are several questions I have.

First how big is your pond. What size area was treated with weedtrine and how much weedtrine did you use for given area. If american pondweed browned out several hours after initial application it sound like you had a chemical burn instead of getting herbicide to react with plant material.

Weedtrine is a diquat that works on pondweed and is really effective if mixed with copper i.e. cutrine plus.

Either way if you start raking pondweed out before it dies off it will reestablish itself because it has a good strong root system. If herbicide does not get down to root system then it may be better to reapply weedtrine or something else to get effective management of American Pondweed.