RESULTS

(8)

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DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi

Diseased blossoms, a stage of bacterial canker.

Bacterial canker (Leaf and fruit spot) | Kiwi

DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi (Actinidia chinensis)

PATHOGEN: Pseudomonas syringae pv. actinidiae

SOURCE: J. Young

DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi

Leaf spot stage of the disease with small, brown lesions with yellow halos.

Bacterial canker (Leaf and fruit spot) | Kiwi

DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi (Actinidia chinensis)

PATHOGEN: Pseudomonas syringae pv. actinidiae

SOURCE: M. Goto

DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi

Leaf spots on young leaves. Note dark brown to black lesions on lower surface (left) and similar lesions on upper surface but with yellow halos (right).

Bacterial canker (Leaf and fruit spot) | Kiwi

DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi (Actinidia chinensis)

PATHOGEN: Pseudomonas syringae pv. actinidiae

SOURCE: J. Young

DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi

Rusty-colored exudate oozing from cankers on infected trunk.

Bacterial canker (Leaf and fruit spot) | Kiwi

DISEASE: Bacterial canker (Leaf and fruit spot)

HOST: Kiwi (Actinidia chinensis)

PATHOGEN: Pseudomonas syringae pv. actinidiae

SOURCE: M. Goto

DISEASE: Bacterial canker

HOST: Hazelnut

Primary symptoms are failure of buds to break and withering and death of new foliage in spring. Dead leaves remain attached to limbs after normal leaf fall.

Bacterial canker | Hazelnut

DISEASE: Bacterial canker

HOST: Hazelnut (Corylus americana)

PATHOGEN: Pseudomonas syringae pv. avellanae

PATHOGEN SYNONYM: Pseudomonas avellanae

SOURCE: P. Psalidas

DISEASE: Chocolate spot

HOST: Corn (Maize)

Leaf with dark brown, elongated spots surrounded by broad, yellow halos.

Chocolate spot | Corn (Maize)

DISEASE: Chocolate spot

HOST: Corn (Maize) (Zea mays)

PATHOGEN: Pseudomonas syringae pv. coronafaciens

SOURCE: D. White

DISEASE: Halo blight

HOST: Oat

Oat leaves with oval lesions that darken in time and have distinctive yellow halos.

Halo blight | Oat

DISEASE: Halo blight

HOST: Oat (Avena sativa)

PATHOGEN: Pseudomonas syringae pv. coronafaciens

SOURCE: N. Schaad

DISEASE: Halo blight

HOST: Oat

Close-up of young and old lesions surrounded by halos.

Halo blight | Oat

DISEASE: Halo blight

HOST: Oat (Avena sativa)

PATHOGEN: Pseudomonas syringae pv. coronafaciens

SOURCE: N. Schaad