Common Diseases
Common Tree Diseases Seen in Oklahoma
Common Tree Diseases Seen in Oklahoma
Diseases infect weakened trees more readily than healthy trees. Good tree care can eliminate or reduce disease problems, as well as prevent them from occurring.
Diseases infect weakened trees more readily than healthy trees. Good tree care can eliminate or reduce disease problems, as well as prevent them from occurring.
Common Leaf Diseases
Common Leaf Diseases
Anthracnose
Anthracnose
Irregular dead areas on leaf margins,between and across and/or along veins, often moving ontothe shoots and small twigs; sometimes whole leaves areengulfed.
Leaf spot
Leaf spot
Dead spot on the leaf that is well definedfrom healthy tissue.
Leaf blotch
Leaf blotch
Dead area on the leaf that often diffusesinto healthy tissues.
Shot-hole
Shot-hole
Loss of dead areas inside of spots that resultin a series of holes in the leaf.
Leaf-blister
Leaf-blister
Leaf spot or blotch that is swollen or raised, sothat the area appears blister-like on the upper surface of the leaf.
Powdery mildew
Powdery mildew
Superficial growth of white to gray‑white fungus material on leaves and shoots.