Beginning April 1, 2010 retailers will no longer be displaying lawn fertilizers containing phosphorus fertilizer in Wisconsin under a new law that is designed “to provide protection to Wisconsin’s lakes, rivers, streams and other water resources from phosphorus run-off.” Phosphorous-containing fertilizers will still be available to individuals establishing/renovating turfgrass areas who are able to demonstrate a phosphorous deficiency in the soil through a soil test report.
It is interesting for me to follow these new developments. Having lived in Wisconsin for nearly three years while working with the commercial horticulture industry in the Winnebago County UW Extension office I had the opportunity to see the early stages of change that lead to this new law. Comparing the changes that occurred in Wisconsin to the movement in Florida I see many similarities. It will be interesting to see where the State of Florida is at in a couple years with regard to local/statewide laws controlling fertilization of turfgrass areas.