Are aquatic herbicides safe to put in my lake?
Yes, if used properly. Like all aquatic plant management techniques, aquatic herbicides have both positive and negative characteristics. If used properly, they can all be beneficial to a lake’s well being. If misused or abused, they all share similar outcomes - negative impacts to the lake.

Aquatic herbicides are the most common method to control nuisance vegetation/algae. When used properly, they can provide selective and reliable control. Products cannot be licensed for use in aquatic situations unless there is less than a 1 in 1,000,000 chance of any negative effects on human health, wildlife and the environment. Aquatic herbicides are not allowed to be environmentally persistent, bioaccumulate or have any bioavailability. Prior to herbicide application, licensed applicators should evaluate the lake’s vegetation, choose the appropriate herbicide and treatment areas and apply the herbicides during appropriate conditions (i.e., low wind speed and temperature and high dissolved oxygen concentration).

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1. Why does my lake look like someone poured green paint into it?
2. If I’m seeing a lot of foam washing up along my shoreline, is it possible that someone is dumping detergent into the lake via wash water?
3. What does it really mean when a beach is closed? Why can’t I still swim?
4. Why is it undesirable to remove all of the plants from my lake?
5. Is it legal to put aquatic herbicides in my lake?
6. Are aquatic herbicides safe to put in my lake?
7. My shoreline is eroding. Should I install a seawall?
8. Should I have an aerator installed in my lake?
9. What can be done about all the geese that live on my lake and are ruining my beach and lawn with their feces?
10. I'm worried about sediment entering my lake from a nearby construction site. What can I do?