Plant Disease Diagnostics Clinic

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2023 PDDC Plant Disease Talks
2024 PDDC Monthly Disease Talk Registration Form
2024 PDDC Plant Disease Talks
2025 PDDC Monthly Disease Talk Registration Form
2026 PDDC Monthly Ask the Experts Registration Form
2026 PDDC Monthly Disease Talk Registration Form
2026 PDDC Plant Disease Talks
Ask the Experts: A Monthly Q&A Series
Building Block Plant Diseases
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Fact Sheet Listing – All
Fact Sheet Listing – Diseases – Broad Leafed Woody Ornamental
Fact Sheet Listing – Diseases – Field and Forage
Fact Sheet Listing – Diseases – Fruit Crop
Fact Sheet Listing – Diseases – Herbaceous Ornamental
Fact Sheet Listing – Diseases – Needled Woody Ornamental
Fact Sheet Listing – Diseases – Specialty Crop
Fact Sheet Listing – Diseases – Vegetable
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Search for:

Tar_Spot

August 18, 2015 212 × 213 Tar Spot of Trees and Shrubs

Symptoms of tar spot on silver maple leaves.

Symptoms of tar spot on silver maple leaves.

University of Wisconsin-Madison

University of Wisconsin-Madison

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Learn About Us:

Clinic Overview

Diagnostic Services

Get a Diagnosis:

Submit Digital Photograph
Submit Physical Sample

Outreach/
Education

Watch Talks & Workshops:

Ask the Experts Talks
Monthly Plant Disease Talks
Events
Book a Talk for Your Group

Watch Courses:

Fundamentals of Plant Diseases
IPM Scout School – Diseases of Field and Forage Crops

Watch/Listen to Media:

Brian on Wisconsin Public Radio
Brian on Wisconsin Public Television

Read/Listen to Resources:

Limerickettsia Book
Monthly Notes (Blog)
Plant Disease Fact Sheets
Plant Disease Pointers (Blog)
Scientific Publications
Wisconsin Hort Update Archive (Podcast)

Test Your Knowledge:

Disease Quizzes – Earn Medallions

Read Disease Stats:

Wisconsin Disease Almanac

Resources for Kids:

Building Block Plant Diseases

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University of Wisconsin-Madison

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Plant Disease Diagnostic Clinic
1630 Linden Dr. Room 183
Madison, Wisconsin 53706
608-262-2863
pddc@wisc.edu
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UW-Madison College of Agricultural and Life Sciences
UW-Madison Department of Plant Pathology

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