Plant Health Care



A tree disease can be defined as an abnormal condition that affects a plants ability to properly function. Tree diseases are mainly caused by fungi; however, other organisms such as nematodes, bacteria, and viruses can also cause disease in trees.

Trees in urban environments provide many benefits to our communities. However, an urban setting isn’t always the most conducive environment for a tree to thrive due to factors like confined root space, salt, competition for water, compacted soil, and pollution to name a few.

These abiotic stresses can damage a tree by themselves or cause a tree to become more susceptible to a pathogen or pest. Its important to remember that many tree diseases cannot be cured after a tree has been infected. Therefore, trees must receive preventive treatments to ensure that they do not succumb to diseases.  Once a tree has contracted a disease, management strategies can be aimed at reducing symptoms and prolonging the life of the tree.


At Forester Tree Service we take an Integrated Pest Management (IPM) approach to protect trees and shrubs on our clients’ properties. IPM is designed to make certain we achieve our goal of suppressing pest problems while minimizing negative environmental impacts.

The abiotic stresses of living in urban environments can damage a tree independently or increase a tree’s susceptibility to pathogens and pest.

Unlike diseases, pests can be eradicated from a tree after they have taken residence. However, preventative measures are most effective. Furthermore, the earlier that steps are taken to treat an occupied tree, the higher likelihood that the tree will not suffer long-term consequences.

Treatment methods for both diseases and pests include:
– Spray Application
– Soil Application
– Trunk Injection