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RESULTS

(7)

DISEASE: Carrot yellows

HOST: Carrot

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

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.

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Gall on gypsophila stem.

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Gall 1 month after inoculation of stem.

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Brown gall on crown of gypsophila.

DISEASE: Gypsophila gall

HOST: Gypsophila (Baby's breath)

Galls (left) caused by Pantoea agglomerans pv. agglomerans tend to be brownish, and those (right) caused by P. agglomerans pv. betae are white.

DISEASE: Marginal leaf blight

HOST: Lettuce

Marginal leaf blight first appears as slimy wilting of leaf margins. Small, reddish lesions may be seen on leaf blades. Infected tissues turn brown to black in time.