Sooty Mold of Guava
Capnodium spp.
Guavafungal
A cosmetic fungal disease that grows on insect honeydew, coating leaves in black soot-like mold.
Symptoms
A black, sooty coating develops on leaves, growing on honeydew excreted by aphids, scale, or whitefly, reducing photosynthesis.
Favorable conditions
- •Populations of sap-sucking insects (aphids, scale, whitefly) producing honeydew
Management
- 1Control the underlying sap-sucking insect population
- 2Wash affected foliage where practical
- 3Improve airflow through pruning
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