RESULTS

(6)

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DISEASE: Ratoon stunt

HOST: Sugarcane

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

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: D. Teakle

DISEASE: Ratoon stunt

HOST: Sugarcane

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

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: A. Gillaspie, M. Davis

DISEASE: Ratoon stunt

HOST: Sugarcane

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

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum)

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: A. Gillaspie, M. Davis

DISEASE: Ratoon stunt

HOST: Sugarcane

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

Ratoon stunt | Sugarcane

DISEASE: Ratoon stunt

HOST: Sugarcane (Saccharum officinarum 'Trojan')

PATHOGEN: Leifsonia xyli subsp. xyli

SOURCE: D. Teakle

DISEASE: X-disease (Peach yellow leaf roll)

HOST: Peach

Peach twig with yellow, curled (rolled) leaves.

X-disease (Peach yellow leaf roll) | Peach

DISEASE: X-disease (Peach yellow leaf roll)

HOST: Peach (Prunus persica)

PATHOGEN: 'Candidatus Phytoplasma mali'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: W. Sinclair

DISEASE: Xanthomonas leaf spot

HOST: Cabbage

Cabbage leaf with small lesions. Lesions may enlarge and coalesce, causing distortion. Stem lesions are black and sunken and may cause death of the plants.

Xanthomonas leaf spot | Cabbage

DISEASE: Xanthomonas leaf spot

HOST: Cabbage (Brassica oleracea var. capitata)

PATHOGEN: Xanthomonas campestris pv. raphani

SOURCE: R. Gitaitis