University of Maryland Web Sites
- Plant Diagnostic Lab (Maryland)
- Weed of the Week
- Pest Threats - Invasive insect and disease species
- Soil Testing Labs ((list compiled by the Home and Garden Information Center)
- Home and Garden Information Center (for homeowners)
- Watershed Protection and Restoration Program
- Understanding Maryland Watershed Restoration and Stormwater Protection Fees
Maryland Association Web Sites
- Maryland Turfgrass Council
- Maryland Arborist Association
- Maryland Department of Agriculture - Prohibited Invasive Plant Species
- Frederick Area Landscape Contractors and Nurserymen Association
- Professional Grounds Management Society of D.C.
- Maryland Nursery and Landscape Association
- Landscape Contractors' Association of MD/DC/VA
Additional Sites
- e-GRO Electronic Grower Resources (commercial greenhouse production)
- Emerald Ash Borer University - Archived webinars on EAB topics are posted on their website