US Forest Service Tree Owner’s Manual Like an owner’s manual that comes with automobiles and appliances, this includes a parts list, instructions for installation, tips for troubleshooting common issues, recommended service, and more.
www.treeownersmanual.info
Virginia Cooperative Extension is a state service dedicated to bringing university knowledge to the community. This website provides information, education, and tools you can use every day in caring for your trees.
http://pubs.ext.vt.edu/category/trees-shrubs-groundcovers.html
International Society of Arboriculture (ISA), the professional association of certified arborists, provides the general public with quality tree care information. Check out the Benefits calculator on your own tree!
http://www.treesaregood.org/treeowner
Arlington County Public Tree Information
https://environment.arlingtonva.us/trees/
Alexandria City Public Tree Information
http://alexandriava.gov/Trees
How To Prune
https://www.fs.usda.gov/naspf/sites/default/files/publications/htprunerev2012.pdf
Choose Native Trees for Wildlife Habitat and Conservation Landscaping