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UMaine Cooperative Extension: Insect Pests, Ticks and Plant Diseases

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Plant Disease Images - Forward/Disclaimer

The images on this Web site are the property of the author and may not be used  without permission. All images were taken from samples received at the University of Maine Plant Diagnostic Clinic. Where image file names begin with a nine digit number, this number refers to a specific sample entered into the PDIS database and, therefore, all images prefixed by the same number are of the same organism. Although extensive effort has been made to correctly identify the organisms in these images, this is not a taxonomic treatise and some errors may occur. Please send any corrections or other input to It will be appreciated.

–Bruce A. Watt

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University of Maine Cooperative Extension

Contact Information

UMaine Cooperative Extension: Insect Pests, Ticks and Plant Diseases
491 College Avenue
Orono, Maine 04473-1295
Phone: 207.581.3880, 800.287.0279 (in Maine) or 800.287.8957 (TDD)E-mail:
The University of Maine
Orono, Maine 04469
A Member of the University of Maine System