This fungal canker attacks weakened trees through wounds and grows in the sapwood. The red-black oak group is more susceptible than the white oak group.

Pin oak and Northern Pin oak are prone to a chlorosis caused by an iron deficiency. Iron chlorosis develops in high pH soils. Affected trees are commonly found ...

A database that provides information on more than 200 native tree and shrub species, and on almost 300 insects and 200 diseases found in Canada's forests.

Oak wilt on red oaks simply wilts young leaves and they turn pale green and brown. Mature leaves may have water soaking lesions or turn bronze on the leaf ...

Bacterial leaf scorch can infect red oaks and other tree species. The disease rarely kills the tree, and it often shows symptoms each year, particularly in late ...

18 июн. 2024 г. · From oak wilt to powdery mildew, armillaria root rot to sudden oak death, we'll dig into the complexities of these diseases to gain a deeper understanding of ...

Insects, Diseases, or Other Plant Problems: The northern red oak has no serious insect or disease problems. It is susceptible to oak wilt and chlorosis ( ...

Symptoms include marginal leaf browning, branch mortality, and eventually tree death.

One of the most common problems with this species is chlorosis that develops when soil pH is over 7 to. 7.5. This results in yellowing or browning between the ...