Final diagnosis


Wild fire, Angular leaf spot disease (Pseudomonas syringae pv. tabaci)

Greasy lesions on several tobacco leaves. <i><b>Pseudomonas syringae</i> pv. <i>tabaci</i></b> "wildfire")
Details of greasy and blackish lesions; Note that they tend to diffuse from the veins. <I> <b> Pseudomonas syringae </ i> pv. <I> tabaci </ i> </ b> (wildfire disease)
Brown and necrotic spots can be observed on lower leaves of this young tobacco plant. <i><b>Pseudomonas syringae</i> pv. <i>tabaci</i></b> ("wildfire")
On the young leaves of Virginia tobacco, several brown to black spots can be observed. They are well defined, variable in shape, with a slight distortion of lamina, diameters ranging from 2 to 5 mm. <b><i>Pseudomonas syringae </i></b>pv. <i><b>tabaci </b></i>(wildfire)
Many small brown to black spots scattered on the lamina ; some of them are at the lamina margins and have a marked yellow halo. <i><b>Pseudomonas syringae</b></i> pv. tabaci (wildfire)
Many necrotic spots surrounded by a yellow halo on a Virginia type tobacco leaf. Bacterial disease caused by <i><b>Pseudomonas syringae</b></i> pv. Angulata (angular leaf spot).
Numerous small brown spots, irregular and sometimes angular, surrounded by a yellow halo of various size. <i>Pseudomonas syringae</i> pv. tabaci (wildfire, angular leaf spot)
Details of brown and necrotic angular lesions due to development of <b><i>Pseudomonas syringae</i> pv. <i>tabaci</i></b> on lamina of tobacco leaves. ("wildfire", "angular leaf spot")
Several leaves are more or less affected, on one of them spots have converged resulting in the loss of a lamina sector that starts to split. <i>Pseudomonas syringae </i>pv. tabaci (wildfire, angular leaf spot)
When the conditions are favourable, the spots enlarge, the tissue at the center of the spots turn light brown to light gray, while the margins remain brown. <i>Pseudomonas syringae</i> pv. tabaci (wildfire, angular leaf spot)
Details of brown, more or less angular lesions due to development of <b><i>Pseudomonas syringae</i> pv. <i>tabaci</i></b> on lamina of tobacco leaves. Note that they converge in some places. ("wildfire", "angular leaf spot")
Details of brown lesions spread out on tobacco leaf <b><i>Pseudomonas syringae</i> pv. <i>tabaci</i></b> ("wildfire", "angular leaf spot")
At the end, the altered tissues rot and fall, the leaf being then more or less widely torn. <B> <i> Pseudomonas syringae </ i> pv. <I> tabaci </ i> </ b> ("wildfire", "angular leaf spot")