Tree & Shrub Care Resources
International Society of Arboriculture - "Through research, technology, and education, the International Society of Arboriculture (ISA) promotes the professional practice of arboriculture and fosters a greater worldwide awareness of the benefits of trees."
Tree Care Industry Association - Established in 1938 as the National Arborist Association, the TCIA is a trade association of more than 2,200 commercial tree care firms and affiliated companies with a mission to advance tree care businesses.
Tree Care Tips - Consumer tree care information, including tips on how to hire a professional tree company, asking for a written proposal, checking for insurance coverage, storm damage, pests and diseases, mulching, planting and other tree oriented information.
Maryland Forest Service - "The Forest Service restores, manages, and protects Maryland’s trees, forests, and forested ecosystems to sustain our natural resources and connect people to the land."
Licensed Tree Expert Information - By law, "All tree care professionals practicing in Maryland must obtain a license. Without a license, they may not practice or advertise tree care services in the state. To obtain a license, the applicant must possess adequate and related college education plus one year of experience under a LTE or have three years experience under a Licensed Tree Expert (LTE), then have passed an exam and carry adequate amounts of liability and property damage insurance. The license must be renewed annually every January."
TREE-MENDOUS MARYLAND - Tree-mendous Maryland’s goal is to help Maryland residents have access to affordable trees to plant on their public lands. With permission from land owners, volunteers can plant trees at schools, in state and community parks, local open space, street trees and more. Gather your friends, scout troop or classmates and plant a tree today to clean your air, clean your water and beautify your home town!
Emerald Ash Borer in Maryland - The history, identification and potential impact of this very destructive invasive species, from the Maryland Department of Natural Resources.
Emerald Ash Borer: Maryland Quarantine - Ash is the most common tree in Baltimore. This information from the Maryland Department of Agriculture includes a quarantine map, trap survey, buffer zone locations, and a Homeowner's Guide to a very destructive exotic pest.
Big Tree Champions of Maryland - There are several trees growing in Maryland that are estimated to be more than 400 years old. The Maryland Big Tree Program registers and catalogs the largest examples of native or naturalized trees in Maryland.
The Wye Oak - Sprouting from an acorn sometime during the 1500s, this massive white oak tree – long recognized as the largest in the United States – finally collapsed during a storm in 2002 when it was measured to be 31 feet 8 inches in circumference, 96 feet tall, with an average crown spread of 119 feet.
National Arbor Day Foundation - Founded in 1972, this 501(c3) nonprofit organization is the largest nonprofit membership organization dedicated to planting trees. Their Website features a Glossary of Tree Terms and a Tree and Shrub Database with descriptions of more than 200 different species.