Plant Disease

Plant Disease Identification Guide

Fruit & Vegetable Diseases

Bacterial Leaf Spot of Pepper
Corn Mold Downy Mildew
Early Blight of Tomatoes
Late Blight of Tomatoes
Powdery Mildew
Septoria Leaf Spot
Strawberry Black Root Rot

Landscape Tree Diseases

Diplodia Tip Blight
Leaf Scorch
Rhizosphaera Needle Cast
Seiridium Canker
Winter Damage

Tree Fruit Diseases

Fire Blight on Pome Fruit
Fruit Cracking
Peach Leaf Curl
Cherry Leaf Spot
Black Rot Disease in Apples
Brown Rot in Stone Fruit
Introduction to Black Knot

Managing Garden Diseases

Identifying & Preventing Herbicide Injury

Plant Diagnostic Clinic

Contact the Clinic

WVU Plant Diagnostic Clinic

G102 South Agricultural Sciences
Morgantown, WV 26506-6108
Email Mahfuz Rahman
304-293-8838 304-288-9541

Monday - Friday | 8:15 a.m. - 4:45 p.m.
Closed on WVU Holidays

Collect & Submit Plant Samples

Take & Submit a Plant Sample

Active Plant Disease Alerts

AgAlert! Cucumber Downy Mildew and Anthracnose

Cucumber downy mildew (CDM) has now been reported from neighboring states (Virginia, Pennsylvania, Ohio and Kentucky). It is predicted that the disease can be in West Virginia, especially in the counties bordering other states, within a few days (https://cdm.ipmpipe.org/). 

This is the best time to take preventative measures against this deadly disease. If cucumber plants are treated with either mancozeb (Manzate, Dithane, Penncozeb, Fore, Roper, etc.) or chlorothalonil (Bravo, Daconil, Fungonil, etc.) on a weekly basis prior to the arrival of the pathogen in your area, it can be effective in delaying the onset of the disease or completely preventing infections.

Read AgAlert! Cucumber Downy Mildew and Anthracnose

If you see or suspect a new plant disease outbreak that's not currently reported here, please contact Mahfuz Rahman with the WVU Plant Diagnostic Clinic or your local county Extension agent, immediately.

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