Plant Disease Identification and Control

Information on plant disease identification and control, including rot, freeze damage, rust, blight, mold, scales, bacteria, viruses, fungus, wilt, mildew, gall, mites, moths and cankers. Tips on integrated pest management and herbicide summaries.

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Plant Health Diagnosis: Assessing Plant Diseases, Pests and Problems
Plant Health Diagnosis: Assessing Plant Diseases, Pests and Problems - Online Courses Online Courses
$59.00
Learn a process for diagnosing plant health problems, including signs and symptoms of diseases, pests and insects, and environment or management issues. More
Fire blighted flowers. Photo: Gary Moorman
Fire Blight in Ornamentals - Articles Articles

Fire Blight in Ornamentals

Gary W. Moorman, Ph.D.

Fire blight is a disease caused by the bacterium Erwinia amylovora. More
M.G. Klein, USDA Agricultural Research Service, Bugwood.org
Home Orchards: Table 4.4. Disease, Insect, and Mites on Apples and Pears - Articles Articles
Occurrence of diseases, insects, and mites on apples and pears during the growing season. More
John Hartman, University of Kentucky, Bugwood.org
Home Fruit Gardens: Table 8.2. Strawberry Disease Control Strategies - Articles Articles
Informational table showing summary of strawberry disease control strategies. More
on Ferrin, Louisiana State University Agricultural Center, Bugwood.org
Home Fruit Gardens: Table 8.3. Efficacy of Fungicides on Strawberries - Articles Articles
Informational table showing efficacy of fungicides on strawberries. Always consult the label before making pesticide applications. More
Home Fruit Gardens: Table 8.6. Pesticide Recommendations for Strawberries
Home Fruit Gardens: Table 8.6. Pesticide Recommendations for Strawberries - Articles Articles
The important insects and diseases to be controlled, except for viruses, root rot, verticillium wilt, and nematodes, are listed in the right-hand column in the spray schedule. More
Pesticides for Gooseberry and Currant Home Plantings
Pesticides for Gooseberry and Currant Home Plantings - Articles Articles
Informational table showing pesticide recommendations for gooseberries and currants. More
Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
Home Orchards: Table 2.4. Plant Protection Materials - Articles Articles
Informational table showing pesticides available for home garden use on various fruit crops. More
Anthracnose in Home Plantings of Brambles
Anthracnose in Home Plantings of Brambles - Articles Articles
Anthracnose, is considered an extremely serious disease of black, purple, and susceptible varieties of red raspberry. More
Aphids on Raspberries in Home Gardens
Aphids on Raspberries in Home Gardens - Articles Articles
Aphids are pear-shaped, tiny (1/16 to 3/8 inch long), soft-bodied, sucking insects with small heads and a pair of cornicles ("exhaust pipes"). More
R. Stace-Smith, Bugwood.org
Leaf Curl Virus of Brambles in Home Gardens - Articles Articles
Raspberries are affected more severely by leaf curl than are blackberries. More
Pest Management in Elderberries in Home Fruit Plantings
Pest Management in Elderberries in Home Fruit Plantings - Articles Articles
No pesticides are currently registered for use. More
Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org
Phytophthora Root Rot in Raspberries in the Home Garden - Articles Articles
Phytophthora root rot is now regarded as a major cause of declining red raspberry plantings. 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
Pest Management in Gooseberries and Currants in Home Fruit Plantings
Pest Management in Gooseberries and Currants in Home Fruit Plantings - Articles Articles
Many cultural methods such as pruning and sanitation practices will help in keeping disease organisms out of your plantings. More
Eugene E. Nelson, Bugwood.org
Mites in Brambles in Home Fruit Plantings - Articles Articles
Leaves infested by the two-spotted spider mite, Tetranychus urticae (Koch), first appear to have areas of white stippling. Later, the leaves may bronze, dry, and eventually fall off. More
Fern Diseases
Fern Diseases - Articles Articles

Fern Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Fern diseases. More
Walnut Anthracnose
Walnut Anthracnose - Articles Articles

Walnut Anthracnose

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Walnut Anthracnose disease. More
Willow Diseases
Willow Diseases - Articles Articles

Willow Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Willow diseases. More
Home Orchards: Table 4.1. Scab-resistant Apple Varieties
Home Orchards: Table 4.1. Scab-resistant Apple Varieties - Articles Articles
Informational table showing apple varieties that are resistant to apple scab and recommended for home planting in Pennsylvania. More
Home Orchards: Table 4.2. Non-Scab Resistant Apple Varieties
Home Orchards: Table 4.2. Non-Scab Resistant Apple Varieties - Articles Articles
Informational table showing apple varieties that are non-resistant to apple scab but recommended for home planting in Pennsylvania. More
Astilbe Diseases
Astilbe Diseases - Articles Articles

Astilbe Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Astilbe diseases. More
Home Orchard: Table 2.3. Pesticide Application Amounts
Home Orchard: Table 2.3. Pesticide Application Amounts - Articles Articles
Informational table showing pesticide application amounts on fruit. More
Black Root Rot on Strawberries in Home Fruit Plantings
Black Root Rot on Strawberries in Home Fruit Plantings - Articles Articles
Black root rot is known as a "disease complex," meaning that it can be caused by several factors. More
Powdery Mildew of Strawberries in Home Fruit Plantings
Powdery Mildew of Strawberries in Home Fruit Plantings - Articles Articles
Powdery mildew is observed mostly as a foliage disease, but it occasionally causes a serious fruit rot. Severe foliar infection can damage leaves and reduce photosynthesis. More
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