In Topic 1.3, we explored how biotic factors influence tree growth, development and survival. The relationships between trees, fungi, insects, mites, viruses, bacteria and other living organisms can range from positive to neutral to negative. When tree pests and diseases have the potential to cause harm or greatly undermine tree benefits, tree care providers need an effective and structured methodology to deal with this. Integrated Pest Management (IPM) is a framework for managing plant health care, by preventing problems with viable and sustainable decisions. This approach combines strategies like proper plant selection and site remediation, followed by cultural, physical, mechanical, biological and chemical control methods, when pest populations exceed tolerable levels.
IPM is a component of Plant Health Care (PHC), an approach centered on understanding plants, their needs, their interactions with other organisms and nonliving elements in the landscape.
This week, we look at the components of IPM. distinguish between different methods of control and share tips for integrating IPM in urban forest operations.
This week's readings resources offer different perspectives on dealing with significant tree pests and diseases. You will also have the opportunity to understand the current state of IPM research and research needs in urban forestry.
Learning Objectives
By the end of this topic, you should be able to:
Understand how an integrated management approach could help prevent, or reduce pest and disease populations to tolerable levels
Appreciate the different components of IPM and recognize how they can be applied in arboricultural operations
Describe different methods to control pests and diseases of urban trees
Topic Readings and Web Resources
Required Readings
Break on required readings for this session
Optional Readings
Looking to get up to speed? Consider this optional reading for more background context and terminology.
Lilly, S.J. (2010).ISA Arborists’ Certification Study Guide. International Society of Arboriculture, Champaign IL (Chapter 11 - Plant Health Care).
Want to dive a little deeper into North American IPM research? Consider this resource outlining IPM research priorities and key best for urban trees in the Eastern United States
Frank, S.D. (2018).IKey Pests and IPM Research and Extension Priorities for Urban Trees in the Eastern US,