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RESULTS

(40)

DISEASE: Bacterial stem rot

HOST: Tomato

Wilt is first symptom of disease. Later, the pith usually disintegrates, causing hollow and blackened stems.

DISEASE: Bacterial wilt

HOST: Custard apple

Custard apple with brown discoloration of vascular system, typical of wilt disease.

DISEASE: Bacterial wilt

HOST: Custard apple

Sudden death stage of wilt disease.

DISEASE: Bacterial wilt

HOST: Custard apple

Custard apple with brown, dead root tissues with necrotic speckles at the margin between healthy and diseased tissues.

DISEASE: Bacterial wilt

HOST: Tomato

Severely infected plants in glass house. First symptoms appear as wilt of young leaves. Leaf epinasty may occur.

DISEASE: Bacterial wilt

HOST: Tomato

Necrotic, brownish, cortical tissues. Massive infection of cortex may result in water-soaked lesions on stem surfaces.

DISEASE: Pith necrosis

HOST: Tomato

Cracked, dry, hollow stems with internal necrosis.

DISEASE: Pith necrosis

HOST: Tomato

External necrotic stem tissues. Initial symptoms include chlorosis of young leaves. Wilting may occur when disease is severe.

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.