Late Blight Lookalikes on Leaves and Stems (continued)
Water damage on lower leaves The tips of leaflets look water-soaked and aresurrounded by a yellowish halo. No myceliumdevelops as in late blight lesions. Hot soil damage on lower leaves The tips of leaflets touching the ground…
Granules of nitrogen fertilizers burn plant tissues, particularly when the relative humidity is high.
Water damage on lower leaves
The tips of leaflets look water-soaked and are surrounded by a yellowish halo. No mycelium develops as in late blight lesions.
Hot soil damage on lower leaves
The tips of leaflets touching the ground become brown. The affected tissue is surrounded by a yellowish discolouration. This injury is common in sandy soils when the season is warm and dry.