leaf spot


Oak Tree Diseases - Blisters
Oak Tree Diseases Anthracnose   Symptoms During wet weather, young leaves are blighted as bud break occurs or large dead areas form between the leaf veins primarily on lower branches. Winter twig dieback may occur. Slightly raised, brown dots (fungal fruiting structures) form on the lower surface of leaves and […]

Oak Tree Diseases


¬†Holly Diseases   Leaf Scorch   Symptoms Circular to irregular, tan spots appear in early Spring or Summer. Tiny, black fungal fruiting structures pepper the spot surface as a result of attack by the secondary fungus.   Management No control is recommended   Nematodes   Symptoms Yellowing, stunting, and twig […]

Holly Diseases


Forsythia Diseases Gall   Symptoms Knobby galls from along forsythia branches.   Management Prune infected branches. Disinfect the pruning shears thoroughly after use.     Twig Blight   Symptoms The ends of lower branches, especially those near the ground, die. Black nodules of fungal tissue are found inside the stems […]

Forsythia Diseases



Dogwood Tree Diseases¬†   Anthracnose & Decline Symptoms Brown spots up to 1/4 inch in diameter go entirely through the leaf and have reddish-brown halos. Tiny, dark-brown fungal fruiting structures dot the brown areas. Small, reddish-brown spots without brown centers may pepper portions of the leaf or extend along veins. […]

Dogwood Tree Diseases


Boxwood Diseases Decline   Symptoms Stunted growth and dieback occur. Young foliage turns grayish green or bronze and finally straw colored. Old leaves fall prematurely. Middle or top branches die. Sunken cankers form at the soil line or on branches in the crotches where dead leaves accumulate. Wood under the […]

Boxwood Diseases