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: Gumming disease

HOST: Sugarcane

Symptoms include brownish red streaks on leaves with apical chlorosis. Streaks become necrotic with time. Plants are stunted with reddening of vascular bundles.

Gumming disease | Sugarcane

DISEASE: Gumming disease

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Xanthomonas axonopodis pv. vasculorum

PATHOGEN SYNONYM: Xanthomonas campestris pv. vasculorum

SOURCE: APS

DISEASE: Pierce's disease

HOST: Grape

Leaves with bright yellow, chlorotic areas with dead, dry, necrotic adjacent tissues.

Pierce's disease | Grape

DISEASE: Pierce's disease

HOST: Grape (Vitis vinifera)

PATHOGEN: Xylella fastidiosa

SOURCE: J. Clark, S. Purcell

DISEASE: Pierce's disease

HOST: Grape

Early symptoms of Pierce's disease on leaves. Symptoms vary greatly among cultivars.

Pierce's disease | Grape

DISEASE: Pierce's disease

HOST: Grape (Vitis vinifera 'Chardonnay')

PATHOGEN: Xylella fastidiosa

SOURCE: J. Clark, S. Purcell

DISEASE: Pierce's disease

HOST: Grape

Late-season wood on diseased canes fail to mature, leaving green "islands" of tissue surrounded by dark brown, mature wood.

Pierce's disease | Grape

DISEASE: Pierce's disease

HOST: Grape (Vitis vinifera 'Fiesta')

PATHOGEN: Xylella fastidiosa

SOURCE: S. Purcell