Plant databases
USDA Plants Database
Wisconsin invasive species
Weed Science Society of America
Factsheets and other educational resources
The Learning Store – Division of Extension
Wisconsin Horticulture – Division of Extension
Diagnostics
University of Wisconsin – Madison Insect Diagnostic Lab
University of Wisconsin – Madison Plant Disease Diagnostics Clinic
UW Soil and Forage Lab
Other
Wisconsin Master Gardener Program
Wisconsin Phenological Society
