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Vegetable Pathology – Long Island Horticultural Research & Extension Center

Home
About
Photo Gallery
- Arugula
- Asparagus
- Basil
- Beans
- Beets and Swiss chard
- Blueberry
- Carrots
- Celery
- Corn (sweet)
- Crucifers (aka brassicas and cole crops)
- Cucurbits
- Dill
- Eggplant
- Garlic
- Horseradish
- Lettuce
- Onion
- Parsley
- Peas
- Peppers
- Potatoes
- Spinach
- Strawberries
- Tomatoes
Research
Extension & Outreach
Site news

Photo Gallery

HomePhoto GalleryBeans

Beans

Anthracnose
Bacterial brown spot
Chimera (genetic disorder)
Common blight
Halo blight
Ozone injury
Phytophthora blight
Rust
Virus
White mold

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Contact

Margaret McGrath
Associate Professor Emeritus
(retired 5-2-23)
School of Integrative Plant Science
Plant Pathology and Plant-Microbe Biology Section
Long Island Horticultural Research & Extension Center
Riverhead, NY 11901-1098
Email: mtm3@cornell.edu

Need help …

… diagnosing or managing diseases? Contact your local office of Cornell Cooperative Extension. Not from New York? Find your office here. Or find help through the National Plant Diagnostic Network.

News highlights

McGrath featured in A Way to Garden podcast
McGrath featured in A Smarter Fall Cleanup in The New York Times
McGrath travels to China to share insights on cucurbit disease management
McGrath speaks at Mexican conference on disease management in vegetables
Curiosity and expertise earn Excellence in IPM award for Cornell ‘pumpkin whisperer’

Site news

Margaret Tuttle McGrath receives NED-APS Award of Merit
Tomato virus alert
New Basil Downy Mildew Race 1 in NY in 2022
New photo gallery: Turnip mosaic virus on crucifers
New photo galleries

A Way to Garden podcasts:

Meg McGrath is an occasional guest on New York Times garden columnist Margaret Roach’s popular A Way to Garden podcast. Follow the links to listen or read the interview transcript:

Basil and cucurbit downy mildews
What’s wrong with my tomatoes?

Featured

Photo gallery
Vegetable disease factsheets & articles
Managing vegetable diseases organically

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