Water Weed Guide
Our Weed ID Guide is designed with the do-it-yourselfer in mind. Our aquatic weed control product recommendations are based on over thirty years of field experience. These are general recommendations that typically work when used according to the product label. Our biologists may choose to use other products and solutions when on site as the water chemistry of each pond is unique. We also carry products to rid your property of nuisance geese.
The following pages picture common aquatic weeds throughout the country. Place your weed in a clear glass jar with water and compare it to the pictures. Pay careful attention to the leaves. Keep in mind prior to implementing any control method that plants are a necessary and beneficial component of healthy pond ecosystems. Nevertheless, plants can cause problems and control measures to eliminate or reduce overabundance are available.
Click on the description of the aquatic weed you would like to control.
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| 1. Problem Algae | 2. Submersed Weeds | 3. Free Floating Weeds | 4. Rooted Floating Weeds | 5. Emergent Weeds |
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In Wisconsin and other states, chemical use permits are required for all herbicide/algaecide applications or you must have in place a current Type I or Type II fish farm license. Check with your local and/or state regulatory group for specific requirements. In order to apply chemicals in liquid form within Wisconsin, the applicator must be licensed with the State. Wisconsin pond owners - contact the Department of Agriculture at 608-224-4887 for a fish farm license.