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Invasive Species Resources

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University of California. Agriculture and Natural Resources.
Provides information to both growers and home gardeners, in two distinct sub-sites -- to get the basics on the insect and the disease it can vector, how to inspect your trees, how to treat your tree if you find ACP, critical things to do to help contain the insect population and deal with Huanglongbing (HLB), as well as additional information more specific to California.
Cornell University. Agriculture and Life Sciences.
This guide provides photographs and descriptions of biological control (or biocontrol) agents of insect, disease, and weed pests in North America. It is also a tutorial on the concept and practice of biological control and integrated pest management (IPM). Whether you are an educator, a commercial grower, a student, a researcher, a land manager, or an extension or regulatory agent, we hope you will find this information useful.
University of California. Agriculture and Natural Resources.

Pennsylvania State University. School of Forest Resources.

California Sea Grant.
These materials are provided for educational purposes only. They are intended to provide a general overview of what is required for implementing tactics to eradicate and control aquatic invasive species (AIS). Although prevention is the best approach, it also is important to be prepared and respond quickly to new infestations and to reduce risks posed by existing infestations.
University of New Hampshire. Cooperative Extension.

University of California. Cooperative Extension. Central Sierra.

Pennsylvania State University. Cooperative Extension.
North Dakota State University.
University of Maine. Sustainable Agriculture Program.
See also: For Farmers for more resources
Pennsylvania State University. Cooperative Extension.

University of California. Weed Research and Information Center.

See also: Weeds in Natural Areas for more information sheets