Young Dogwood Tree Leaves Curling
Ascochyta cornicola is a fungus that appears on dogwood foliage after unusually rainy springs attacking new leaves as they emerge.
Young dogwood tree leaves curling. The bark looks fine and the young branches appear to be a healthy light green near the leaves. However the leaves are now curling and feel dry to the touch. It seemed to thrive initially. This infection strikes as soon as the flowers and buds open and creates small purple blotches on the faces of the curling leaves.
Leaf scorch is a common problem in dogwood tress and a sign that your tree is under water stress. When a dogwood tree does not receive adequate water the leaves of the tree begin to dry with the. The entire leaf is eventually engulfed turns brown and black then withers. I recently planted a small 6 flowering dogwood tree on my front lawn.
The first sign of infection can often be seen on the leaves where you might see tan spots that develop purple rims. Environmental disorders and infectious diseases may cause dogwood s leaves to cup and curl and can threaten the tree s health wherever it grows. Another indication is what s known as twig die back and this in turn often results in the appearance of succulent shoots on the lower trunk and main branches of affected trees. There are any number of diseases and pests that can stress your dogwood and cause dogwood leaf drop.
Dogwoods very commonly exhibit curled leaves in summer so chances are you don t have too much to worry about. Affected leaves turn yellow or brown along the edges and curl due to water stress. When leaves are falling off dogwood in summer it could mean a serious illness improper siting or cultivation problems. Leaves may also have necrotic veins and leaf margins and large necrotic blotches.
It is normal to see leaves falling in autumn but you should not see a dogwood tree dropping leaves in summer. Drought and winter injuries weaken trees and the anthracnose fungus mostly attacks during the cool wet spring and fall weather but it can occur during any season. This infection distorts the tissue of the leaves forcing it to curl and will eventually. Blight begins with small brown centered gray spots that appear on leaf surfaces and distort leaf growth.
On the trunk and. One of the most common reasons for leaf curling on dogwood trees discula anthracnose is a fungus infection that can attack your leaves in the early part of the growing season.