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RESULTS

(14)

DISEASE: Angular leaf spot

HOST: Tobacco

Leaf with light brown, angular spots. The difference between this disease and wildfire of tobacco is that wildfire is caused by a strain that produces tabtoxin. It causes conspicuous halos around lesions and large parts of a leaf may turn yellow .

DISEASE: Angular leaf spot

HOST: Tobacco

Yellowing of adjacent tissues occur as spots age (midseason). It causes conspicuous halos around lesions. Large parts of a leaf may turn yellow.

DISEASE: Angular leaf spot

HOST: Tobacco

Severely diseased leaf with extensive yellowing.

DISEASE: Brown blotch

HOST: Mushroom

Stunted fruit bodies, initial stage of disease.

DISEASE: Brown blotch

HOST: Mushroom

Fruit bodies at advanced stage of disease.

DISEASE: Brown blotch

HOST: Mushroom

Black discoloration of basal portions of fruit bodies. Healthy (left).

DISEASE: Brown blotch

HOST: Mushroom

Black discoloration of basal portion of fruit bodies.

DISEASE: Brown blotch

HOST: Mushroom

Mushrooms with rotted, brownish discoloration of infected areas.

DISEASE: Drippy gill

HOST: Mushroom

Drippy gill is characterized by small dark spots on gills with drops of bacterial ooze at the centers. Severe infection results in slimy areas and collapse of gills.