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Pestatiopsis leaf spot of magnolia causes unique circular spots with necrotic center and a black border and usually occurs during cooler weather conditions
Pestatiopsis leaf spot of magnolia causes unique circular spots with necrotic center and a black border and usually occurs during cooler weather conditions
A close up of the infected leaf.
A close up of the infected leaf.
Cracking inside the necrotic region.
Cracking inside the necrotic region.
A close up of the necroric section.
A close up of the necroric section.
Wind and water movement aids in spread of the fungal spores of the pathogen from a few infected leaves or plant debris.
Wind and water movement aids in spread of the fungal spores of the pathogen from a few infected leaves or plant debris.

Magnolia diseases

Fungal causal agent: Pestalotiopsis sp.

PESTALOTIOPSIS BLIGHT