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AGROTECHNOLOGY

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…

Late Blight Lookalikes on Leaves and Stems (continued)Potatoes.News
Granules of nitrogen fertilizers burn
plant tissues, particularly when the
relative humidity is high.

Water damage on lower leaves

damage
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

damage1
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.

Fertilizer damage

damage3
Affected areas turn grey, then black

Published report and original attribution: Potatoes.News ↗

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