Oak Tree Blight Treatment

Bur oak blight bob is a fungal leaf disease that gained attention in minnesota and iowa in the mid to late 2000s although minnesota dnr forest health staff noticed symptoms in the 1990s before scientists identified the cause.

Oak tree blight treatment. Oak root fungus is found in the root and tree trunks. Oak quercus is a versatile plant that provides shade acts as a windbreak and produces acorns which in turn feed wildlife. This large genus consists of evergreen and. Common oak tree diseases.

The health of the tree becomes compromised due to overwatering the tree nutrient deficiency or excess soil build up. If you see clusters of mushrooms growing at the base of an oak tree this is a warning sign of oak root fungus. Whether infected by root grafts or insects the infected trees then become the new host for the oak wilt disease and cycle continues as the pathogen is spread to other healthy trees. Oliviformis an upland variety of bur oak characterized by its relatively small olive shaped acorns susceptibility of bur oaks to bob is highly variable and trees of all sizes are at risk.

Sudden oak death is a tree affliction caused by phytophthora ramorum a type of water mold that causes cankers which disrupt the circulation of sap girdling and eventually killing the tree. The oak wilt fungus moves from tree to tree in two ways. Underground through the roots or overland by insects. Bob causes leaf browning and leaf loss in late summer and early fall.

Bur oak blight bob is a leaf blight caused by the fungus tubakia iowensis it is a disease of concern to anyone who has bur oak trees on their property. Starting at the top of the tree leaves rapidly wilt and turn brown. Bob is most prevalent on quercus macrocarpa var.