The control of insect and tree disease pests on trees often involves tree spraying. Tree trunk injections or soil injections can be done to control some insect and disease pests of trees, but the most common method used is tree spraying. Many tree care companies that offer tree pruning or tree removal also offer tree spraying. The equipment used for tree spraying can be as small as a backpack sprayer all the way up to a 1000 gallon tank trunk. The equipment an arborist uses for tree spraying depends on the tree species, tree size, and the insect pest or tree disease pest the arborist is controlling.
Some tree species are highly targeted by insect pests or various tree diseases, while other landscape trees are relatively pest free. A local arborist, or local tree service, can be a valuable resource in determining what landscape trees will be prone to attack by insect pests or tree diseases.