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Fusarium circinatum is a fungal plant pathogen that causes the serious disease pitch canker on pine trees and Douglas firs (Pseudotsuga menziesii).The most common hosts of the pathogen include slash pine (Pinus elliottii), loblolly pine (Pinus taeda), Monterey pine (Pinus radiata), Mexican weeping pine (Pinus patula), and Douglas fir. [1]
Pine-pine gall rust, also known as western gall rust, is a fungal disease of pine trees. It is caused by Endocronartium harknessii (asexual name is Peridermium harknessii ), an autoecious , endocyclic , rust fungus that grows in the vascular cambium of the host. [ 1 ]
Infected trees are often identified by "flagging", when all the needles on a branch turn brown and die. Infections often occur on low branches close to the ground on young trees, so pruning of white pine can also be effective in multiple ways, as it improves the quality of timber by creating more knot-free timber, and reduces the likelihood of ...
Do you have a mature pine tree with bunches of brown needles? It may be suffering from a fungal disease called diplodia tip blight. “Diplodia has become more common due to environmental stress ...
The best-known types are brown rot, soft rot, and white rot. [4] [5] Each produce different enzymes, can degrade different plant materials, and can colonise different environmental niches. [6] Brown rot and soft rot both digest a tree's cellulose and hemicellulose but not its lignin; white rot digests lignin as well. The residual products of ...
Some bark beetle species like Mountain Pine Beetle (Dendroctonus ponderosae) feed on phloem layer just underneath the bark of a lodgepole pines when they are developing from larval to adult stage. Mountain Pine Beetle carry the spores of at least 2 known blue stain fungi species, Ophiostoma clavigerum and Ophiostoma montium. [ 2 ]