Don’t “P” on Your Lawn

In cities and suburbs, fertilizers—whether organic or conventional—from lawns and gardens are a major source of phosphorus. About one-sixth of the phosphorus that enters Lake is from developed lands, and one acre of developed land contributes about twice as much phosphorus to the lake as one acre of farm land!

The Don’t “P” campaign provides information about phosphorus fertilizers—did you know that laws in Vermont and New York prohibit using phosphorus fertilizers except in certain circumstances—and tips for reducing or eliminating phosphorus from your lawn care activities.

It’s The Law!

Laws in Vermont and New York that took effect January 1, 2012, prohibit the application of phosphorus fertilizers except in certain circumstances. Fertilizer with phosphorus may be applied if a soil test indicates a phosphorus deficiency.

  • What is the TMDL?

  • What is Phosphorus?

  • What You Can Do?

  • Best Management Practices

  • Legacy Phosphorus