RESULTS

(7)

FILTER

DISEASE: Head rot (Jelly rot)

HOST: Lettuce

Sliced head of lettuce. Typical symptoms are a translucent appearance and browning or jelly rot of the stalk (crown).

Head rot (Jelly rot) | Lettuce

DISEASE: Head rot (Jelly rot)

HOST: Lettuce (Lactuca sativa)

PATHOGEN: Pectobacterium carotovorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora

SOURCE: J. Cho, A. Alvarez

DISEASE: Head rot (Jelly rot)

HOST: Lettuce

Advanced stage of lettuce stalk rot (crown).

Head rot (Jelly rot) | Lettuce

DISEASE: Head rot (Jelly rot)

HOST: Lettuce (Lactuca sativa)

PATHOGEN: Pectobacterium carotovorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora

SOURCE: J. Cho, A. Alvarez

DISEASE: Head rot (Jelly rot)

HOST: Lettuce

Head rot of lettuce first appears as rapid wilt of outer wrapper leaves. Wilt is caused by collapse of vascular tissues, which develop a pinkish to brown discoloration.

Head rot (Jelly rot) | Lettuce

DISEASE: Head rot (Jelly rot)

HOST: Lettuce (Lactuca sativa)

PATHOGEN: Pectobacterium carotovorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora

SOURCE: L. Fucikovsky

DISEASE: Oak leaf scorch

HOST: Oak

Oak with scorched leaf tips.

Oak leaf scorch | Oak

DISEASE: Oak leaf scorch

HOST: Oak (Quercus kelloggii)

PATHOGEN: Xylella fastidiosa

SOURCE: S. Kostka

DISEASE: Oak leaf scorch

HOST: Oak

Leaf with brown, marginal necrosis resembling a burn.

Oak leaf scorch | Oak

DISEASE: Oak leaf scorch

HOST: Oak (Quercus rubra)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Oak leaf scorch

HOST: Oak

Diseased tree with brownish, scorched leaves.

Oak leaf scorch | Oak

DISEASE: Oak leaf scorch

HOST: Oak (Quercus rubra)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Slippery skin

HOST: Onion

Rot progresses from the top of infected scales and eventually internal tissues rot. In early stages, the only external symptoms may be softening of the neck.

Slippery skin | Onion

DISEASE: Slippery skin

HOST: Onion (Allium cepa)

PATHOGEN: Burkholderia gladioli pv. alliicola

PATHOGEN SYNONYM: Pseudomonas gladioli pv. alliicola

SOURCE: H. Schwartz