Dogwood Tree Leaf Problems
The disease discula destructiva causes leaf twig and branch dieback beginning in the lower part of the tree.
Dogwood tree leaf problems. Sawflies resemble caterpillars often covered with white powdery material dogwood sawfly. The tree usually dies in three to five years. Within a year or two the entire tree is affected. When a dogwood tree does not receive adequate water the leaves of the tree begin to dry with the.
This is a relatively new disease of dogwood in south carolina and it is caused by the fungus discula destructiva. Mechanical injuries are most commonly caused by lawn mowers or string trimmers. When leaves are falling off dogwood in summer it could mean a serious illness improper siting or cultivation problems. Mechanical and chemical injuries are other common dogwood tree problems.
Dogwood anthracnose is most severe only in areas of the state that are higher than 2000 feet. Dogwood trees have several insects and their larvae that call the tree their home. Significant loss of vigor and illness can result when these tiny marauders invade in quantity. The dogwood borer is the most noteworthy pest of the tree.
Leaves are smaller and lighter green than normal and turn prematurely red in late summer. Do not pull off the bark or any other intact part of the tree around the infected area. Crown canker caused by a fungus occurs primarily on transplanted dogwood trees. It is normal to see leaves falling in autumn but you should not see a dogwood tree dropping leaves in summer.
Dogwood anthracnose discula anthracnose. Peeling cracked bark near base of tree brown leaf edges wilting purple red leaf color. Leaves eaten or chewed. Larvae live in the cambium layer and their travel and eating damage the flow of nutrients and water.
There are any number of diseases and pests that can stress your dogwood and cause dogwood leaf drop. In case of a mechanical injury remove the dead tissue with your fingers. Numerous small shoots may grow from the trunk. Dogwood borers synanthedon scitula dogwood trees attacked by borers clear winged moths which begin emerging in late may to september will display swollen knotty calloused or gall like areas on the trunk at or immediately below the ground surface possibly between the ground surface and the branches above.
Leaf scorch powdery mildew drought conditions poor site conditions causes tree stress crown canker.