1 FAQ
Pests, Diseases & DisordersShould black sooty mold on mango be treated as the primary disease?
Investigate the sticky deposits beneath the black coating and the insects producing them. Sooty mold commonly grows on honeydew, so removing the coating without addressing its source can provide only temporary improvement. Examine fresh growth and leaf undersides to find active colonies. Record whether the coating is widespread enough to affect foliage rather than deciding from a single dirty leaf that the whole tree needs a fungicide.