DISEASE: Angular leaf spot
HOST: Strawberry
Early stage of disease begins as water-soaked, angular lesions, often with yellow ooze. There also are blight and vascular collapse stages.
Angular leaf spot | Strawberry
DISEASE: Angular leaf spot
HOST: Strawberry (Fragaria × ananassa)
PATHOGEN: Xanthomonas fragariae
SOURCE: M. Schroth
DISEASE: Angular leaf spot
HOST: Strawberry
Diseased sepals.
Angular leaf spot | Strawberry
DISEASE: Angular leaf spot
HOST: Strawberry (Fragaria × ananassa)
PATHOGEN: Xanthomonas fragariae
SOURCE: M. Schroth
DISEASE: Angular leaf spot
HOST: Strawberry
Vascular collapse stage occurs from systemic invasion of crown region.
Angular leaf spot | Strawberry
DISEASE: Angular leaf spot
HOST: Strawberry (Fragaria × ananassa)
PATHOGEN: Xanthomonas fragariae
SOURCE: M. Schroth
DISEASE: Aster yellows
HOST: Strawberry
Aster yellows causes flowers to be entirely phylloid. Young leaves of infected plants are small, chlorotic, and cupped and have short petioles. Red coloration may develop on older leaves.
Aster yellows | Strawberry
DISEASE: Aster yellows
HOST: Strawberry (Fragaria × ananassa)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: S. Guerrini
DISEASE: Aster yellows
HOST: Strawberry
'Marmolada' strawberry with fruit distortion and phyllody of achenes.
Aster yellows | Strawberry
DISEASE: Aster yellows
HOST: Strawberry (Fragaria × ananassa)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: S. Guerrini
DISEASE: Bacterial wilt
HOST: Strawberry
Advanced stage of wilt (center plant).
Bacterial wilt | Strawberry
DISEASE: Bacterial wilt
HOST: Strawberry (Fragaria × ananassa)
PATHOGEN: Ralstonia solanacearum
PATHOGEN SYNONYM: Pseudomonas solanacearum
SOURCE: M. Goto
DISEASE: Fire blight
HOST: Plum
Typical symptoms of fire blight-infected, young European plum shoot.
Fire blight | Plum
DISEASE: Fire blight
HOST: Plum (Prunus domestica 'Empress')
PATHOGEN: Erwinia amylovora
SOURCE: S. Mohan
DISEASE: Fire blight
HOST: Plum
Diseased terminal shoot and advancing infection.
Fire blight | Plum
DISEASE: Fire blight
HOST: Plum (Prunus domestica 'Empress')
PATHOGEN: Erwinia amylovora
SOURCE: S. Mohan
DISEASE: Green petal disease
HOST: Strawberry
Diseased plant with button berries and green petals that turn red. The disease is caused by a subgroup of aster yellows.
Green petal disease | Strawberry
DISEASE: Green petal disease
HOST: Strawberry (Fragaria × ananassa)
PATHOGEN: 'Candidatus Phytoplasma' sp.
PATHOGEN SYNONYM: Phytoplasma (undefined)
SOURCE: M. Clark