Anyone know how long it generally takes a lake treated for weeds for the process to take effect and kill off the weeds? What is the reasoning on doing this? I would assume uptight property owners not wanting unsightly weeds in their beach areas. Two lakes near my house are treated every year and fishing can become tough after the kill off.
It takes about 14-21 days for the products used to take affect and control the vegetation. The reason most people make applications to their properties is recreational use of the water, aka swimming and boating. The DNR will not issue a permit to a person who wants an application make solely for the purpose of aesthetics. It would be my estimation that there are other factors at work in the lake that makes fishing tough after applications. I have talked to a few fisherman who will actually return to treated areas and fish the newly created weedlines and catch more fish. Again this is hearsay and not personal experience.
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