Xanthomonas hortorum pv. carotae
bacterial blight of carrot
Bacterium carotae, Phytomonas carotae, Pseudomonas carotae, Xanthomonas campestris pv. carotae, Xanthomonas carotae
The period from infection of plant tissue to symptoms is usually short, under favorable conditions. This period may increase when conditions are not favorable, with genetic resistance, other disease or pest pressure, or physiological stress. Symptoms may also be inconspicuous, masked, or atypical under similar conditions or stress. When symptoms are present, confirm the causal agent with laboratory diagnoses. Prolonged periods of latency resulting in asymptotic plants has not been documented for this pathogen. Literature showing that random sampling of apparently healthy plants to detect latent populations of this pathogen has not been found.
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