Powdery Mildew
Powdery mildew is a fungal disease that can produce whitish growth on susceptible mango flowers, young fruit, and other tissues. Flower infection can reduce fruit set even if the rest of the tree looks vigorous. It is different from sooty mold, which grows on insect honeydew, and should not be diagnosed solely from a distant photograph. Monitor emerging panicles, compare symptoms carefully, and seek locally appropriate guidance before using a product, especially where pollinators are visiting flowers.