Search results
Results From The WOW.Com Content Network
Beech bark disease is a disease that causes mortality and defects in beech trees in the eastern United States, Canada and Europe. [ 1 ] [ 2 ] [ 3 ] In North America , the disease occurs after extensive bark invasion by Xylococculus betulae and the beech scale insect , Cryptococcus fagisuga . [ 4 ]
Maple bark disease, or maple bark stripper’s disease, is an uncommon condition caused by exposure to the spores of C. corticale. [5] The spores are hyper-allergenic and cause a hypersensitivity pneumonitis. [6] [7] The disease has been found among workers in the paper industry employed to debark, cut and chip maple logs. The symptoms include ...
In trees, heart rot is a fungal disease that causes the decay of wood at the center of the trunk and branches. Fungi enter the tree through wounds in the bark and decay the heartwood . The diseased heartwood softens, making trees structurally weaker and prone to breakage.
The disease is caused by a fungus, Cryptostroma corticale. Normally, the fungus grows in dead wood as part of the normal decaying process. But the fungus has been increasingly found in living trees.
Where beech bark disease becomes established, most of the larger trees will die. Some trees seem to be partially resistant to the disease and a small number seem to be completely resistant. This may be partly due to the fact that trees with smooth bark provide fewer cracks and crevices in which the scale insect can flourish.
Inonotus andersonii, also known as oak canker-rot and heart rot, is a species of resupinate polypore fungus that forms fruiting bodies underneath tree bark. [1] I. andersonii induces canker rot in oak, hickory, cottonwood, and willow trees. [2] [3] Wood that has been infected by this species appears bleached of color and crumbles easily.
Aleurodiscus oakesii on tree bark. Aleurodiscus oakesii is the most common fungi to cause “smooth patch disease” on the nonliving outer bark of trees. This fungal infection can lead to trees shedding and leaving smooth and lighter patches of bark on the tree, giving “smooth patch” its meaning.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!