Plant pathogens and diseases

deformity in a woody plant, typically a tree, where the natural structure of the plant is changed: a dense mass of shoots grows from a single point, with the resulting structure resembling a broom or a bird's nest; sometimes caused by pathogens

right|thumb|Ophiognomonia clavigignenti-juglandacearum|Butternut canker is a lethal disease of butternut trees, and has no cure.

species of fungus

identifier issued by the European and Mediterranean Plant Protection Organization (EPPO), to uniquely identify plants, pests and pathogens that are important to agriculture

thumb|Example of downy mildew (left) along with [[powdery mildew (right) on a grape leaf]]

thumb|Wilted flower of Tigridia pavonia thumb|Time lapse video of flower wilting

species of fungus

thumb|Phyllody on a purple coneflower ([[Echinacea purpurea)]] Phyllody is the abnormal development of floral parts into leafy structures. It is generally caused by phytoplasma or virus infections, though it may also be because of environmental factors that result in an imbalance in plant hormones. Phyllody causes the affected plant to become partially or entirely sterile, as it is unable to produce normal flowers.

Disease that causes plant roots to rot

common disease of plants belonging to the family Brassicaceae (Cruciferae)

disease in fruit trees

index of fungi with the same common name

species of fungus

taxonomic rank

species of fungus

species of fungus

a fungal disease that affects seeds and seedlings

plant disease

species of fungus

species of fungus

Blight is a specific symptom affecting plants in response to infection by a pathogenic organism.

species of fungus

genus of fungi