symptoms
Symptoms
- circleBlack powdery coating on leaves
- circleReduced photosynthesis
- circleSticky residue beneath black coating
help
Causes
Grows on honeydew excreted by aphids, scale, or whitefly. Not a direct plant pathogen.
healing
Treatment
Treat the underlying pest infestation. Wash mould off leaves with water.
shield
Prevention
Control sap-sucking pests. Good air circulation.