The NY State Department of Environmental Conservation Be Green Organic Yards NY program promotes organic lawn, plant, and tree care. Businesses that participate in the Be Green program only use products that meet DEC's conditions for organic management. The Be Green program is not a license or certification to apply pesticides and while the organic approach is a process rather than product oriented solution there are many pesticides that can be used. To commercially apply those pesticides requires a pesticide applicator certification issued by the DEC. Please see the link below and for information on how to participate or to find businesses that participate in the Be Green program.