Aquatic weed control and removal for lakes and ponds.
Aquatic Plants and You
Plants are an essential part of lake communities and benefit a
wide variety of organisms, including you. Although aquatic plants are
sometimes a nuisance for lakeshore property owners, it is important to
remember that they are critical for a healthy lake environment. Here are
some reasons why.
- Help prevent shoreline erosion by breaking up wave action
- Provide natural food and shelter for fish and wildlife
- Are one of the first links in the aquatic food chain
- Improve water clarity and quality
The Nuisance Factor
The Minnesota Department of Natural Resources (DNR)
recognizes that aquatic plants, algae, snails, and other aquatic life
are sometimes a nuisance. Nuisance aquatic plants can be addressed
through the department's Aquatic Plan Management Program. This program
issues permits for controlling or destroying aquatic plants or
invertebrates in public waters. One goal of the program is to ensure
that methods used to manage nuisance conditions will be effective
without harming beneficial aquatic plants and the environment.
Before removing or treating aquatic vegetation or organisms
in the lake, be sure you understand the rules and regulations for
these activities. If you have questions about aquatic plant control
contact your nearest fisheries office. Violations of
Minnesota laws pertaining to aquatic plant removal may result in civil
or criminal penalties.
Different Aquatic Plants
The amount of control allowed often depends on the kind of plant
growing in the area. Aquatic plants are categorized as follows:
Submerged plants have stems and leaves that
grow entirely under water, through some may also have floating leaves.
Pondweeds and coontail are well-know examples.
Floating-leaf plants are rooted in the lake bottom,
but their leaves and flowers float on the surface of the water. Water
lilies are well-known examples.
Emergent plants are rooted in the lake
bottom, but their leaves and stems extend out of the water. Cattails and
bulrush are well-known examples.
Algae have no true roots, stems, or leaves
and range in size from tiny one-celled organisms to large, multi-celled
plant-like organisms, such as chara. Many algae are free floating and,
when present in large numbers, can make the water appear green.
Two common types of Watermilfoil
Some Friendly Advice
This Web page is a reference guide for you. It is not a complete
list of the aquatic plant management regulations. If you have further
questions, please contact one of the information centers below or at:
Permits to Control Aquatic Plants - DNR
Really Valuable Resources
• HELP STOP Aquatic Hitchhikers
• AQUATIC PLANT MANAGEMENT
• PURPLE LOOSESTRIFE - What You Should Know, What You
DNR Fisheries Offices:
- Bemidji • 218-755-3959
- Glenwood • 320-634-4573
- Brainerd • 218-828-2735
- Grand Rapids • 218-327-4414
- New Ulm • 507-359-6088
- Little Falls • 320-616-2450 ext 235
- St. Paul • 651-772-7956