Effect of Cronartium coleosporioides and Atropellis piniphila on physical properties of wood
Experiments were carried out in Canada to investigate if the infection of Pinus contorta var. latifolia by Cronartium coleosporioides (EPPO A1 pest) and Atropellis piniphila (EPPO A1 pest) has an influence on the physical properties of wood, such as bending strength and bending stiffness. It was found that infection by the pathogens did not affect the bending stiffness of wood, but that the bending strength was significantly decreased in wood with infections by C. coleosporioides or A. piniphila. The authors stressed that this affects the use of the wood and might decrease its value.
Sources
Nevill, R.J.; Lam, F.; Merler, H.; Borden, J.H. (1990) Effects of atropellis canker and stalactiform blister rust on the bending strength and stiffness of logdepole pine lumber.
Wood Science and Technology 24, 225-232.