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RESULTS

(8)

DISEASE: Almond leaf scorch

HOST: Almond

Light brown necrotic (scorched) areas on curling leaves.

DISEASE: Almond leaf scorch

HOST: Almond

Dying almond trees with scorched appearance. Initial symptoms are marginal chlorosis, usually late in the year. Scorch often is first noted at leaf tips, symptoms worsen, and terminal branches may die.

DISEASE: Bacterial foot rot

HOST: Rice

The disease causes sheaths to turn dark brown and rot; dead leaves droop. Nodes, culms, and crowns also decay, and infected tillers are easily detached from the crown. Culms and internodes turn black.

DISEASE: Bacterial foot rot

HOST: Rice

Decayed culms (right) and healthy culms (left). Leaf sheaths of infected plants exhibit dark brown decay and attached leaves turn yellow and wilt.

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.