1 Iritis is uncommon, but can be due to trauma, infections, or autoimmune conditions. Symptoms include pain, red eye, and often, decreased vision.  Optic neuritis. The nerve travelling from the back of the eyeball into the brain can become inflamed.
Oak root fungus, or white rot, is a widespread disease that becomes visible just beneath the bark and on roots. What looks like layers of light brown to tan mushrooms form in clusters at the base of the trees.
Basics and Identification. When phytophthora fungus affects plants such as the hinoki cypress, it is known as root rot. This soilborne fungus attacks the roots of the tree, inhibiting it from absorbing essential water and nutrients.Initially, root root symptoms are not visible to the naked eye.asics and Identification. When phytophthora fungus affects plants such as the hinoki cypress, it is known as root rot. This soilborne fungus attacks the roots of the tree, inhibiting it from absorbing essential water and nutrients.