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RESULTS

(9)

DISEASE: Ratoon stunt

HOST: Sugarcane

Necrotic, reddish vascular bundles in node of sliced stalk, a diagnostic symptom.

DISEASE: Ratoon stunt

HOST: Sugarcane

Disease of susceptible cultivar L62-96 (right). External symptoms are characterized by stunting and poor growth.

DISEASE: Ratoon stunt

HOST: Sugarcane

Red discoloration just below nodal tissues is a symptom in mature stalks of 'L41-233'.

DISEASE: Ratoon stunt

HOST: Sugarcane

Row of disease 'Trojan' plants (left). Healthy row (right).

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: Syringae leaf spot

HOST: Tomato

Leaves with brown necrotic lesions and chlorotic margins. Symptoms vary greatly among cultivars. Some have black or brown lesions with bright yellow, chlorotic areas and others do not have yellowing.