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RESULTS

(7)

DISEASE: Bacterial blight (Boll rot)

HOST: Cotton

Boll rot first appears as raised, water-soaked lesions, which become sunken and turn brown to black with time.

DISEASE: Bacterial blight (Boll rot)

HOST: Cotton

Infection of bolls causes premature opening and increased susceptibility to secondary, saprophytic microorganisms that cause rot. Note discolored cotton.

DISEASE: Slime flux

HOST: Casuarina

Slime flux occurs on a number of tree species and is always associated with bacteria and yeast. However, the causal agent has not been identified.

DISEASE: Slime flux

HOST: Elm

Although bacteria are associated with slime fluxes of many trees, the causal agents have not been identified.

DISEASE: Slime flux

HOST: Maple

The causal agent of slime flux has not been identified.

DISEASE: Slime flux

HOST: Willow

Foam at site of infection. Slime fluxes are common but the causal agent has not been identified.

DISEASE: Strawberry lethal decline

HOST: Strawberry

Diseased plant with bronzing of older leaves and upward rolling or cupping of younger leaves. Leaves are chlorotic on upper surfaces and reddish or purplish on lower surfaces. In time, the entire plant dies.