In citrus trees, sterile pustules may appear first, and in some cases the trees may have oozing sap or gum. In cacao trees, first symptoms of infection usually present as a sparse white mycelium on the bark surface, which can be easily overlooked. Trees are most susceptible in areas with high levels of rainfall, such as tropical rainforests.
Symptoms of fungal disease may first manifest as sterile pustules on citrus trees and oozing sap or gum in some cases. In cacao trees, the initial signs often appear as sparse white mycelium growth on the bark surface, which can be easily overlooked. Trees are most vulnerable to infection in regions with high levels of precipitation, such as tropical rainforests.