Final diagnosis


Pollution spots (weather fleck)

On this tobacco plant, several lower leaves have numerous necrotic spots, disposed in between and adjacent to veins. Pollution spots (weather fleck)
On the lower leaves of this tobacco plant there are numerous spots of irregular size, some of which seem to consist of several rings. Pollution spots weather fleck)
A lot of tiny, whitish to brown spots on a tobacco leaf. Pollution spots (weather fleck)
Later the spots lighten and turn whitish to grey. Pollution spots (weather fleck)
The spots are often dense, small, brown and irregular (2 to 5 mm in diameter). They confluence in some areas and tend to accumulate along the veins. Pollution spots (weather fleck)
This variation of weather fleck is characterised by spots composed of a brown to whitish central lesion, surrounded by several concentric, irregular rings of the same colour. Pollution spots (weather fleck)