The damage is mainly aesthetic.
The leaf drop is likely due to anthracnose. Anthracnose is a common fungal disease of sycamore, ash, maple, oak, and other trees. Anthracnose is most severe in years with cool, wet spring weather. While anthracnose may cause extensive defoliation, it does not cause serious harm.
Because it's a deciduous tree, it's natural for your sycamore to drop its leaves each fall. However, if your tree's leaves are wilting and falling off soon after they emerge in spring, this is a. Jun 05, Why is my sycamore tree dropping its leaves? The leaf drop is likely due to anthracnose. Anthracnose is a common fungal disease of sycamore, ash, maple, oak and other trees.
Anthracnose is most severe in years with cool, wet spring weather. Jun 16, Physiological leaf scorch is caused by excessive evaporation of moisture from the leaves. If the roots cannot absorb and transport water fast enough to replenish this loss, the leaves turn brown and wither. The bacterial leaf scorch pathogen, Xylella fastidiosa, can also cause scorching of leaves by plugging up the water-conducting tissues.
Jun 28, Sycamore anthracnose is caused by the fungal pathogen Apiognomonia veneta, which overwinters on dead Platanus spp. leaves, as well as in infected twigs and branch cankers. The pathogen starts reproducing from these sources to infect new leaves and shoots. Fungal spores are spread via rain splash as the new leaves and shoots stumpdelimbing.barted Reading Time: 4 mins.