Hypoxylon canker is a common disease of mature hardwood trees both in landscapes and in natural wooded areas. The disease, caused by the wood decay fungus Biscogniauxia (formerly Hypoxylon), is most frequently observed in oak tree species, but can also cause dieback in pecan, hickory,  golden rain tree, sycamore, maple, beech, birch, elm, willow, basswood,…Read more about Hypoxylon Canker of Hardwoods[Read More]