The Jenson Lake Mower™ is a cost-effective, environmentally friendly, mechanical aquatic weed control tool. The proven Jenson Lake Mower™ is the premier lake weed cutter on the market today. It can especially be useful during oil spill response situations where shoreline access may be covered with vegetation.

Whether called lake, pond, or river weeds, seaweed or algae, invasive plants can easily kill your fun on the water. The Lake Mower™ is the sickle lake weed cutter that enables you to handle lake weed removal at your property as easily as mowing your lawn. Controlling milfoil, hydrilla, cattail, lily pads, and other aquatic weeds becomes a simple task with this electric lake weed cutter.


The Lake Mower™ lets you spend your time enjoying your lake, river or pond waterfront, not fighting it. Imagine using your small boat as an aquatic lake weed cutter and mower!

It cuts weeds up to seven feet deep (with optional extender), allowing you to enjoy swimming and boating, while maintaining a good habitat for fish. In several cases, cutting lake weeds regularly drastically reduces their growth the following season.

It’s built to last, comes with a two-year warranty, and will give you years of service. Many of the first models ever built are still in service today, over two decades later. This weed cutting machine makes it easy to control lake weeds (commonly referred to as algae or seaweed) affecting your waterfront at an affordable price. Unlike water chemical treatment or huge, expensive harvesters, the Lake Mower™ gives you the ability to cut and trim the areas you choose, and leave the rest.

Jenson Lake Mower Customers Include:

  • Aquatic/Lake Weed Control Specialists
  • Canal Maintenance Companies
  • Cities
  • Counties
  • Entrepreneurs Offering Weed Cutting Services
  • Fisheries
  • Golf & Country Clubs
  • Lake & Pond Management
  • Lake Homeowners or Property Owners Associations
  • Landscaping Companies
  • Marinas
  • Military Bases
  • Municipalities
  • Museums
  • National Forests
  • Parks
  • Pond Owners
  • Real Estate Developers
  • Research Entities
  • Resorts, Lodges and Campgrounds
  • Riverfront Restaurants
  • U.S. Army Corps of Engineers
  • Water Authorities
  • Waterfront Property Owners
  • Waterparks
  • Water ski Clubs
  • Wetland Managers
  • Yacht Clubs
  • Anyone who needs to remove lake weeds.

Jenson Lake Mower Features

  • Assembly with the enclosed 1/8″ Allen wrench is quick and easy.
  • Quick disconnect allows easy “fold-up” for compact storage or easy transportation.
  • Special low power consumption, high-efficiency motors.
  • Up to 7 hours of operation per charge for the HD5000.
  • Light-weight design: Weighs between 42 and 51 pounds.
  • Robust aluminum and stainless steel construction, for long life.
  • Self-sharpening cutting blades are made of heavy-duty specialty steel.
  • Adjustable mounting bracket fits the Lake Mower™ to the side, transom, or front of almost any small boat.
  • Tiller handle with safety on/off switch (height adjustable).
  • Custom bearing blocks, promoting smooth operation.
  • Depth-stop collar adjusts for varying depths, from 0 to 3 feet. Optional 2′ and 4′ extenders are available.
  • Compact drive system.
  • Warranty is NOT voided when used commercially (except for rentals).
  • Easy and fun to operate.
  • The Lake Mower™ easily cuts through submerged weeds such as Eurasian milfoil, hydrilla, elodea, tape grass, cattails, bulrushes, and dense lily pads.
  • Cutting width: 4 feet
  • Cutting depth: Down to 3 feet (+/-) below water surface (adjustable). Down to 5 or 7 feet (+/-) with optional 2 ft or 4 ft extenders
  • Number of blades
  • Upper Bar: 15
  • Lower Bar: 16
  • Height: 68″
  • Width: 48″
  • Weight: HD5000: 45 lb
  • 4′ Extender: 6 lb
  • 2′ Extender: 3 lb
  • Box dimensions: 53″ x 11″ x 7″
Motor Specifications:
  • Heavy duty
  • 100% continuous duty rated gearmotors
  • 1/5 horsepower
  • Steel gears
  • 12 Volt DC
  • Fuse protected: 30 Amp fuses
  • Suitable for prolonged cutting
  • Vertical up/down, for deeper or shallower cut.
  • Swing through 90° on mounting bracket (vertical to horizontal position) to swing blades out of water, or to cut at an angle.
  • Rotate 360° in horizontal plane, to cut forward, backward or sideways.
Power Source:
  • 12 Volt deep cycle marine battery (not included).
  • Available cutting time per charge: typically 7 hours.
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