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RESULTS

(13)

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Dark, rotted areas of stalk and leaves caused by systemic invasion of the pathogen.

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Gray-brown rot of onion after inoculation. Disease starts as small, water-soaked lesions that later develop into slimy, gray-brown rot. The disease progresses downward from the stalk and may rot the entire bulb.

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Leaves with necrosis and rot. The common name for this disease is the same as those used for two other diseases. Also, another common name for this disease is bacterial soft rot.

DISEASE: Bacterial leaf blight and rot

HOST: Orchid

Leaves of Dendrobium orchid with necrosis, discoloration, and rot.

DISEASE: Bacterial leaf blight and rot

HOST: Orchid

Orchid hybrid (Miltonia × Bert Field 'Eileen') with water-soaked, discolored area near base of leaf.

DISEASE: Bacterial leaf blight and rot

HOST: Orchid

Orchid hybrid (Odontoglossum × Memoria Martin Orenstein 'Lulu') with large, brown, infected area on leaves with water-soaking at margin between healthy and diseased tissues.

DISEASE: Bacterial leaf blight and rot

HOST: Orchid

Orchid hybrid (Vuyl × Melissa Brianne 'Kai's Choice') with diseased leaves.

DISEASE: Bunch disease

HOST: Hickory

Bunch disease of shagbark hickory caused by a phytoplasma.

DISEASE: Bunch disease

HOST: Pecan

Pecan exhibiting bunch symptoms at ends of branches. This disease is thought to be caused by a phytoplasma similar to the walnut bunch pathogen in the X-disease group.