RESULTS

(5)

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DISEASE: Apple proliferation

HOST: Apple

Enlarged stipules on leaf. Witches'-brooms, rosettes, and enlarged stipules are the most reliable symptoms for identification.

Apple proliferation | Apple

DISEASE: Apple proliferation

HOST: Apple (Malus domestica 'Granny Smith')

PATHOGEN: 'Candidatus Phytoplasma mali'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: M. Wolf, W. Schweigkofler

DISEASE: Bacterial fruit blotch

HOST: Citron melon

Citron rind with fruit blotch.

Bacterial fruit blotch | Citron melon

DISEASE: Bacterial fruit blotch

HOST: Citron melon (Citrullus lanatus var. citroides)

PATHOGEN: Acidovorax citrulli

PATHOGEN SYNONYM: Acidovorax avenae subsp. citrulli

SOURCE: R. Gitaitis

DISEASE: Bacterial fruit blotch

HOST: Citron melon

Leaf infection stage of fruit blotch.

Bacterial fruit blotch | Citron melon

DISEASE: Bacterial fruit blotch

HOST: Citron melon (Citrullus lanatus var. citroides)

PATHOGEN: Acidovorax citrulli

PATHOGEN SYNONYM: Acidovorax avenae subsp. citrulli

SOURCE: R. Gitaitis

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass

Lesions on leaves first appear as water-soaked, translucent, long, narrow streaks. They later turn brown and necrotic and often coalesce into blighted areas.

Black chaff (Bacterial leaf streak) | Wheatgrass

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass (Elytrigia intermedia)

PATHOGEN: Xanthomonas translucens pv. cerealis

SOURCE: S. Mohan

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass

Close-up of leaf with brown necrotic streaks.

Black chaff (Bacterial leaf streak) | Wheatgrass

DISEASE: Black chaff (Bacterial leaf streak)

HOST: Wheatgrass (Elytrigia intermedia)

PATHOGEN: Xanthomonas translucens pv. cerealis

SOURCE: S. Mohan