American sycamore bark.

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 to healthy, well-established trees. Sep 23, Sycamore trees have large serrated lobed leaves that are light-green with three or five lobes.

The lobed leaves have prominent veins running to their pointed tip. Sycamore leaves grow alternately and they turn yellow and then brown in the fall. The leaves grow to between 4” and 7” (10 – Estimated Reading Time: 10 mins. Sycamore Tree in Fall Colors. Sycamore tree in yellow, orange and brown Fall colors with blue sky and white clouds in the background. Looking upwards into a beautiful golden sycamore tree in autumn with its fall leaves golden, red and orange.

The sun and sun beams can be seen throug. Sycamore Tree Leaf Wilt. 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.