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Pest Identification Guides and Tools

To effectively control a pest, it is important to accurately identify it. Pests can look different as they go through their life cycles. For example an immature beetle may look like a caterpillar or worm. Because of this, pests can easily be mistaken for non-pests, and vice versa. You may find out that your "pest" is actually a beneficial organism, harmless, or only a temporary problem.

There are many identification guides online; however, information posted on the web is not always reliable. You may consider looking for information from universities or government agencies. Field guides and other printed references may be available at your library or Cooperative Extension Office.

A scientist who specializes in plants, plant diseases, insects, microbes, or other organisms may be needed to identify a pest. You may be able to contact an expert through your Cooperative Extension Office. There may be a fee for identification services.

The links below can help you identify and learn about your pest. Once you think you have identified your pest, learn about your pest so you can develop an effective control plan.

If you have questions about this, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email us at npic@ace.orst.edu.

Additional Resources:

Last updated September 18, 2020

Related Topics:

What are pests?

Learn about a pest

Identify a pest

Control a pest

Integrated Pest Management

What are pesticides?





Natural and Biological Pesticides



Other types of pesticides

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