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RESULTS

(7)

DISEASE: Bacterial leaf spot (Canker)

HOST: Ginkgo

Ginkgo leaf with dark brown, elongated necrotic spots.

DISEASE: Bacterial leaf spot (Canker)

HOST: Ginkgo

Ginkgo with leaf spots and canker on stem.

DISEASE: Bacterial stripe

HOST: Bird-of-Paradise

Bird-of-paradise with brownish black stripes along leaf veins and decay at midrib.

DISEASE: Bacterial wilt

HOST: Bird-of-Paradise

Bird-of-paradise with wilted and dead leaves.

DISEASE: Bacterial wilt

HOST: Bird-of-Paradise

Bird-of-paradise (sliced section) with rotted stele in diseased rhizome. Note discolored vascular bundles of leaf petioles.

DISEASE: Drippy nut disease

HOST: Oak

Ooze from young twig inoculated with Brenneria quercina.

DISEASE: Drippy nut disease

HOST: Oak

Ooze from infected acorn. Copious ooze drips from infected acorns, leaving sticky spots on objects under tree canopy. Infections are associated with insect oviposit wounds.