Plant Disease Identification and Control

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Walnut Anthracnose
Walnut Anthracnose - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Walnut Anthracnose disease. More
Penn State Department of Plant Pathology & Environmental Microbiology Archives, Penn State, Bugwood.org
Grape Ivy (Cissus) Diseases - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Grape Ivy (Cissus) diseases. More
Hawthorn Diseases
Hawthorn Diseases - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Hawthorn diseases. More
Hickory Diseases
Hickory Diseases - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Hickory diseases. More
Scott Bauer, USDA Agricultural Research Service, Bugwood.org
Gray Mold on Strawberries - Articles Articles
Gray mold, or botrytis blight, is a common disease of a number of nonwoody plants worldwide and causes a greater loss of strawberry flowers and fruit than any other disease. More
Hemerocallis (Daylily) Diseases
Hemerocallis (Daylily) Diseases - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Hemerocallis (Daylily) diseases. More
Aster Diseases
Aster Diseases - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Aster diseases. More
H.J. Larsen, Bugwood.org
Apple Crown and Collar Rot - Articles Articles
Crown rot continues to be a major cause of tree death in Pennsylvania orchards. Certain rootstocks are more susceptible than others, and the disease often occurs on heavy, poorly drained soils. More
Gloxinia Diseases
Gloxinia Diseases - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Gloxinia diseases. More
Spur Blight in Home Raspberry Plantings
Spur Blight in Home Raspberry Plantings - Articles Articles

Spur Blight in Home Raspberry Plantings

Robert Crassweller, Ph.D.

Red and purple raspberries are more affected by spur blight than black raspberries. Blackberries appear to be immune. More
Pest and Plant Disease Prediction Tools
Pest and Plant Disease Prediction Tools - Articles Articles
There are several online tools to help you monitor and keep up to date on the proximity and likelihood for pests and plant diseases. More
Field day participants discuss disease management with Farmer Anton Shannon, at Good Work Farm.
Start Farming: Developing Your Disease Management Plan - Articles Articles
A field day at one of Penn State Extension’s Models for the Future sites reviewed the importance of a comprehensive disease management plan for your operation. More
Eric Coombs, Oregon Department of Agriculture, Bugwood.org
Crown Gall and Cane Gall in the Home Fruit Planting - Articles Articles
Crown and cane gall are bacterial diseases that seriously limit raspberry production in Pennsylvania. More
Diagnosing a Plant Problem 101
Diagnosing a Plant Problem 101 - Articles Articles
Use this step-by-step method to narrow down the possibilities of your plant problem, but don’t forget to ask the experts if you need to. More
Ecological Disease Management
Ecological Disease Management - Articles Articles

Ecological Disease Management

Beth K. Gugino, Ph.D.

In order for a plant to become diseased three conditions must be met: (1) a pathogen, (2) a favorable environment where the pathogen can thrive, and (3) a susceptible host. More
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