Landscape Pesticide Registry is now online
A Landscape Pesticide Registry dataset of registered properties and participants, is available as a sortable spreadsheet, as a PDF and as an interactive map. The web map is a visual reference to display parcels listed on the registry.
Users can zoom in to a specific city or address, and look for yellow circles that identify properties listed on the registry. Businesses should still use a downloadable spreadsheet or PDF file, to verify if a customer’s address is registered.
If the customer’s address is on the registry, the business should provide advanced notice to the person listed at that particular address, at least 12 hours prior to the business making a landscape pesticide application. This includes application to turf, ornamentals, trees, shrubs, lawns, mulched areas or to control adult mosquitos.
Ch ATCP 29.56(8) Wis Adm Code requires the business to provide the following information:
• Note name, address and telephone number of the business making the application.
• Address of the landscape to be treated.
• Scheduled date of application. If the date changes after giving notice, the business must give a revised notice.
• The brand name, product name or common chemical name of each pesticide that may be applied. Homeowners and renters must annually sign up, if they want to know in advance when a business is going to apply pesticides to neighboring properties. The 2025 registry is valid between March 15, and March 14, 2026. For any questions, contact DATCPLandscapeRegistry@ wisconsin.gov.
