Forest and Urban Tree Pathology and Disease Management

This course is currently being updated and will be available again in May 2025. 

This is a single course offering, based on the pathology component of a regular OSU class (PLNTPTH/ENTMLGY 5110) aimed primarily to professionals in the tree care industry, including arborists, landscapers, forest managers, and extension educators, but also curious and interested people in the community at large, including master gardeners and private citizens. Purpose of the course. The course is designed to provide the basic knowledge necessary to recognize major diseases of forest and urban trees, and to apply the foundations of the discipline to new and unknown diseases of trees.

Course structure: THERE ARE NO START AND END DATES. THAT MEANS THAT YOU CAN START THE COURSE AT ANY TIME OF YOUR CHOOSING AND END IT AT ANY TIME OF YOUR CHOOSING.  The material is offered on an extremely flexible, continuous basis as a SELF-PACED, SELF-CONTAINED online course. The course consists of 7 modules roughly equivalent to 7 in-class weeks of instruction.