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RESULTS

(10)

DISEASE: Bacterial palea browning

HOST: Rice

Early stage of disease with browning of palea.

DISEASE: Bacterial palea browning

HOST: Rice

Browning of palea begins with water-soaked lesions that later turn dark brown. Infected grains become brown after milling.

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: X-disease (Western X) or buckskin

HOST: Cherry

Comparison of normal, dark cherries (in hand) with infected, immature cherries with less pigmentation.

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry

Healthy cherry shoot (left) and stunted shoot (right).

DISEASE: X-disease (Western X) or buckskin

HOST: Cherry

Infected trees on 'Mazzard' rootstock (right) may live for years, producing fruit with symptoms. Trees on 'Mahaleb' rootstock (left) usually die rapidly in year of infection, about time of fruit ripening.