Pierce's Disease Photos

PD symptoms on leaf

Symptoms of Pierce's disease on a leaf.
(Picture from University of California.)
PD symptoms on leaves

Symptoms of Pierce's disease on a leaf.
(Picture from University of California.)
PD symptoms on vineyard

Symptoms of Pierce's disease
in a vineyard.
(Picture from University of California.)
PD symptoms on vineyard

Symptoms of Pierce's disease
on grape leaves in a Temecula vineyard.
(Picture from Phil A Phillips,
UCCE Area IPM Advisor.)

Symptoms of Pierce's disease on leaves.
(Picture from University of California.)
PD symptoms slow spring vineyard growth

Pierce's disease symptoms delay
spring growth in a vineyard.
(Picture from University of California.)
PD on red globe grape vineyard

Pierce's disease in a red globe grape vineyard in August.
(Picture from Jennifer Hashim.)
PD on red globe grapes

Pierce's disease on red globe grapes.
(Picture from University of California.
PD Uneven Wood Maturity and Persistant Petioles

Uneven wood maturity and persistant petioles.
(Picture from University of California.)
Aerial of vineyard with PD

Aerial of vineyard with Pierce's disease.
(Picture from University of California.)