| plantsdb

RESULTS

(10)

DISEASE: Carrot yellows

HOST: Carrot

Flowers with shoot proliferation (witches’-broom) (left). Healthy flower (right). Virescence and phyllody of flower parts are common.

DISEASE: Carrot yellows

HOST: Carrot

Carrot with proliferation of roots. Initial symptoms include yellowing and narrowing of veins of young leaves. The entire leaf later becomes necrotic.

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.