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

Nematodes are soil-dwelling non-segmented roundworms, usually less than 0.5 mm (0.02 in.) long.

Selecting plants for placement in the interiorscape can be simplified if the key plants used are known and if the key pathogens on those plants can be identified.

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

Of the two major types of diseases of woody ornamentals—biotic and abiotic—abiotic diseases are by far the most important ones on landscape and nursery plants.

Not only do you and I look forward to spring weather, but fungi, bacteria, phytoplasmas, and other plant pathogens also gear up for the season.

The scheduling of effective disease management measures is not a simple task nor can it be standardized.

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

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

Crown gall is caused by bacteria belonging to the genus and species Agrobacterium tumefaciens. This bacterium can infect a wide range of herbaceous and woody plants.

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

Downy mildew is the common name for a group of highly specialized obligate parasites of vascular plants.

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

Informational table showing disease name, symptoms, pathogen/cause, and management of Rose Diseases (Outdoors) diseases.

Informational table showing disease name, symptoms, pathogen/cause, and management of Hemerocallis (Daylily) diseases.

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

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

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

Rhizoctonia, a soil-borne fungus, is known to cause root rots, stem rots, damping-off and, in some cases, a blight of leaves.

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

Fire blight is a disease caused by the bacterium Erwinia amylovora.

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

One of the early flowering small trees I anxiously await every spring is Halesia carolina, Carolina silverbell.

Horse owners should manage catsear presence in pastures and limit their horses' contact with the plant.

Western flower thrips are one insect pest that can wreak havoc on even the best-managed garden mum crop.