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Largeleaf Pondweed (Potamogeton amplifolius) is notorious for its
resistance to herbicide treatments. Found in the upper one-half of
the United States.
Q. What are the best control options?
A. Herbicide Application:
Aquathol Super
K or Hydrothol
191 granular is a good
choice but maximum label rates are recommended. If other plants are
present that require control the good news is that improvement is
most likely assured with these broad spectrum herbicides. You may
want to control a monotypic stand of Largeleaf Pondweed by cutting.
See below.
Cutting:
Largeleaf cuts more easily than many aquatic plants
and will not regrow the same season. See Water
weed cutter.
Q. When is the best time to treat?
A. Once water temperatures are around sixty degrees or warmer and
the plants are viable.
Q. How do I actually apply the product(s)?
A. Granular herbicides can be spread by a small Hand
held spreader or can be tossed by a hand scoop.
Q. How often do I need to treat Largeleaf Pondweed?
A. Controlled Largeleaf will not grow back the same season.
Purchase
recommended products online:
- Aquathol
Super K granular
- Hydrothol
191 Granular
- Hand
held spreader
- Water weed Cutter
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