I was just wondering if there were any permanent options for american lotus control. We are looking at the herbicide option for control, and would like to use a granular herbicide if possible.
Like Essup, I don't know of any granular herbicides that are labeled for or effective on American lotus. Even if there were, granular treatments would be a much more expense and a less efficacious option in comparison to topically-sprayed liquids.
I would suggest topical-applications of aquatic-labeled herbicides that contain glyphosate, 2,4-D, triclopyr or imazapyr; any of which would work with varying degrees of success. Remember that such treatments will only affect the plants whose pads are on or above the water's surface at the time of application (assuming the pads receive adequate coverage). Any submerged pads or newly germinating seeds will require future applications in a long-term program to interrupt the population's seed-production cycle.
