This IPM word cloud displays key terms associated with integrated pest management. Understanding these key terms will help you grasp the concept of IPM.
Identify the pest.
Monitor pest populations and assess their damage.
Determine a guideline (threshold) for when pest management action is needed (for instance, the point at which the pest is causing economic losses from its damage).
Attempt to prevent the pest problem.
Combine nonchemical and chemical controls to reduce pest populations.
Assess how well the IPM tactics controlled the pest.
Host resistance – the use of hosts that are resistant to pests (ex. planting roses are less susceptible to blackspot).
Biological controls – the use of natural enemies (ex. ladybird beetles feeding on aphids).
Cultural controls – growing practices (ex. weeding a garden or moisture control).
Mechanical and physical controls – the use of devices or machines to control or exclude pests (ex. using a barrier like a screen to keep the pest out).
Tomato hornworm larva on tomato plant (scientific name Manduca quinquemaculata).
*Photo sourced from Wikipedia.
If you ever see a hornworm caterpillar covered in white egg masses as shown above, this is good! It means the hornworm has been parasitized by a natural enemy (an example of biological control).
*Photo sourced from BugGuide.
An Introduction to Integrated Pest Management -- Virginia Cooperative Extension Publications
Virginia Pesticide Safety IPM -- Virginia Department of Agriculture and Consumer Services, Office of Pesticide Services
Integrated Pest Management Principles -- Environmental Protection Agency