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Powdery mildew occurs on many different flowers, woody ornamentals and trees.

Informational table showing disease name, symptoms, pathogen/cause, and management of Pyracantha diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Palm diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Lily Of The Valley (Convallaria) diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Spruce diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Hemlock diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Viburnum diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Boxwood diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Pieris diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Hydrangea diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Ficus diseases.

Junipers (Juniperus sp.), also known as red cedars, are susceptible to a disease that results in the death of twig tips.

Oak leaf blister, caused by the fungus Taphrina caerulescens, occurs on most species of oaks.

Informational table showing disease name, symptoms, pathogen/cause, and management of Crabapple diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Ash diseases.

Root rot can be caused by several different species of the fungus-like organism Pythium.

A few of the common powdery mildews and the plants that each can infect are listed here.

Informational table showing disease name, symptoms, pathogen/cause, and management of Tulip Poplar diseases.

Certain diseases of trees weaken their structure and create a hazardous situation where serious damage could result from falling limbs or the toppling of the entire tree.

Informational table showing disease name, symptoms, pathogen/cause, and management of Honeysuckle diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Juniper diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Kalanchoe diseases.

London plane and sycamore trees are susceptible to a fungus, Ceratocystis fimbriata f. sp. platani, that is lethal.

Selecting plants for placement in the landscape can be simplified if the key plants are known and if the key diseases on those plants can be identified.

Informational table showing disease name, symptoms, pathogen/cause, and management of Walnut Anthracnose disease.