Multi-State/Institution
- Apple Testers Input Database
- NECC-1009: Multidisciplinary Evaluation of Tree Fruit Cultivars
- NC-140 Regional Rootstock Research Project
- Virtual Orchard Collaborative Orchard News and Information
- International Organic Fruit Symposium
Northeast
Cornell University
- Cornell Gardening Resources, Apple Tree Rootstocks
- Five Important Apple Varieties Named by Cornell
- Apple Varieties and their Uses for Varieties Sold at Cornell Orchards, Ithaca, NY
- Cornell Pest Management Guidelines for Tree Fruits
University of Maine
University of Massachusetts
University of Vermont
Midwest
University of Minnesota
- Grafting and Budding Fruit Trees
- Minnesota Commercial Apple Production
- Minnesota Apple Varieties
- Minnesota Apple Rootstock Information
University of Missouri
- Home Apple Production
- Apple Cultivars and their Uses
- Missouri Apple Facts
- Missouri Apples
- Ice and Freeze Damage to Ornamental and Fruit Trees: Implications and Remediation
Ohio State University
Purdue University
- Apple Cultivars for Indiana
- Managing Pests in Home Fruit Plantings
- Disease Susceptibility of Common Apple Cultivars
- Apple Scab on Tree Fruit in the Home Orchard
- Fire Blight on Fruit Trees in the Home Orchard
South
North Carolina State University
- Apple Rootstocks and Tree Spacing
- Growing Apple Trees in the Home Garden
- Blooming and Ripening Timing of Apple Varieties in North Carolina
- Southeastern Pest Management Guide
- Southeastern Apple Production
- High Density Apple Production in NC
Kentucky
Mid-Atlantic
Pennsylvania State University
- Commercial Tree Fruit Production Guide
- Apple variety developments slide set
- Fruit production for the Home Gardener
- Fruit Times Newsletter