Additional PH Resources

PH Bibliography

Registrations By State

State Herbicide Contacts

List of Retail PH Products
There are more than 150 retail persistent herbicide products available to consumers in the United States.  USCC obtained the names of these products by searching the Kelly Solutions webpage ( in 30 states by active ingredients: aminocyclopyrachlor, aminopyralid, clopyralid, and picloram.  Even professional herbicide applicators often will not know the active ingredients in the products that they apply but they will know retail names.  As a compost producer, these lists may enable you to ask your feedstock customers the right questions in order to help avoid accepting contaminated materials.

Fact Sheets

Persistent Herbicide FAQ