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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 heart rot

HOST: Palm

Palm with advanced stage of heart rot. Symptoms of mature palms include rapid browning and desiccation of foliage, rot of roots and buds, and aborted fruits.

Bacterial heart rot | Palm

DISEASE: Bacterial heart rot

HOST: Palm (Cocos nucifera)

PATHOGEN: Phytomonas sp.

SOURCE: R. McCoy, M. Davis

DISEASE: Carrot yellows

HOST: Carrot

Flowers with shoot proliferation (witches’-broom) (left). Healthy flower (right). Virescence and phyllody of flower parts are common.

Carrot yellows | Carrot

DISEASE: Carrot yellows

HOST: Carrot (Daucus carota)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: M. Schroth

DISEASE: Carrot yellows

HOST: Carrot

Carrot with proliferation of roots. Initial symptoms include yellowing and narrowing of veins of young leaves. The entire leaf later becomes necrotic.

Carrot yellows | Carrot

DISEASE: Carrot yellows

HOST: Carrot (Daucus carota)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: G. S. Abawi