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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Strawberry Disease Photos - Angular Leaf Spot Bacterium
Strawberry Disease Photos - Angular Leaf Spot Bacterium - Articles Articles
Angular leaf spot is caused by the bacterium Xanthomonas fragariae. More
Ericacea (Heath) Family and Their Culture
Ericacea (Heath) Family and Their Culture - Articles Articles

Ericacea (Heath) Family and Their Culture

Jim Sellmer, Ph.D., Rick Bates, Ph.D.

Generally, the ericaceous plants are woody and range in size from low ground covers to small trees over 20 feet tall. More
Landscaping and Gardening Around Walnuts and Other Juglone Producing Plants
Landscaping and Gardening Around Walnuts and Other Juglone Producing Plants - Articles Articles
Walnuts and hickories produce the chemical juglone (5 hydroxy-1,4- napthoquinone), which is exuded from all parts of the plant. More
What Killed this Tree? Site-Related Problems in the Landscape
What Killed this Tree? Site-Related Problems in the Landscape - Articles Articles
This article provides some questions to ask yourself when diagnosing plant problems in the landscape. More
Using Nature's Signals to Manage Landscape Pests
Using Nature's Signals to Manage Landscape Pests - Articles Articles

Using Nature's Signals to Manage Landscape Pests

Emelie Swackhamer, Gregory Hoover

The best way to make an effective pesticide application is to observe pest development at the site through regular monitoring. More
Pest Management Methods
Pest Management Methods - Articles Articles

Pest Management Methods

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

IPM (integrated pest management) primarily consists of methods used to prevent plant problems from occurring in the first place. More
Monitor Pests and Keep Records
Monitor Pests and Keep Records - Articles Articles

Monitor Pests and Keep Records

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

Inspecting your plants on a regular basis is essential to identifying and evaluating plant problems in their early stages. More
Late blight on potato
Late Blight on Potato - Articles Articles
Photos showing late blight on potato. More
Moldy core in Red Delicious. (Photo: K. Peter)
Moldy Core Of Apple - News News

Moldy Core Of Apple

01/20/2017

Moldy core is characterized by the growth of fungus mycelium within the apple fruit seed cavity, without penetration into the flesh of the fruit. More
Pieris Diseases
Pieris Diseases - Articles Articles

Pieris Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Pieris diseases. More
Understanding Synthetic, Natural, Organic and Chemical Pesticide Designations
Understanding Synthetic, Natural, Organic and Chemical Pesticide Designations - Articles Articles
Avid gardeners may yearn to grow the tastiest tomato, the largest pumpkin, or an unblemished rose. More
Pyracantha Diseases
Pyracantha Diseases - Articles Articles

Pyracantha Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Pyracantha diseases. 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
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
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
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
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
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
Scott Bauer, USDA Agricultural Research Service, Bugwood.org
Plum Pox Virus In Ornamentals - Articles Articles

Plum Pox Virus In Ornamentals

Gary W. Moorman, Ph.D.

Plum pox is a serious disease of Prunus species caused by a virus. More
Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
Powdery Mildew Cross Listing - Articles Articles

Powdery Mildew Cross Listing

Gary W. Moorman, Ph.D.

A few of the common powdery mildews and the plants that each can infect are listed here. More
Virus Diseases
Virus Diseases - Articles Articles

Virus Diseases

Gary W. Moorman, Ph.D.

Viruses are submicroscopic entities capable of causing disease. They are a piece of nucleic acid (genetic material) surrounded by a protein coat. More
Tomato-Potato Late Blight in the Home Garden
Tomato-Potato Late Blight in the Home Garden - Articles Articles
This article describes tomato-potato late blight, including symptoms; disease development, cycle, and management; and management after harvest. More
Tobacco Mosaic Virus (TMV)
Tobacco Mosaic Virus (TMV) - Articles Articles

Tobacco Mosaic Virus (TMV)

Gary W. Moorman, Ph.D.

Tobacco mosaic virus (TMV) is named for one of the first plants in which it was found in the 1800s. However, it can infect well over 350 different species of plants. More
Taxus Diseases
Taxus Diseases - Articles Articles

Taxus Diseases

Gary W. Moorman, Ph.D.

Informational table showing disease name, symptoms, pathogen/cause, and management of Taxus diseases. More
Schefflera (Brassaia) Diseases
Schefflera (Brassaia) Diseases - Articles Articles
Informational table showing disease name, symptoms, pathogen/cause, and management of Schefflera (Brassaia) diseases. More