Leaf Mold

Cladosporium fulvum

Image of Leaf Mold damage Image of Leaf Mold damage

Note: Click on the image(s) above to see larger version.

Symptoms:
Symptoms appear as light green patches on upper surfaces of older leaves. Underneath the leaves in these areas, a purplish or olive-green patch of mold growth is visible. Infected leaves turn yellow and drop off the plant.

Control:
Fungus is spread is by wind currents. High humidity and warm temperatures encourage mold growth. The problem is especially severe in greenhouses, where adequate ventilation and air movement reduce disease severity by lowering moisture at the leaf surface. Fungicides are effective controls.

The information given herein is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by the Texas AgriLife Extension Service is implied.

Educational programs of the Texas AgriLife Extension Service are open to all people without regard to race, color, sex, disability, religion, age, or national origin.

Publication Revised December 2008