Walking Stick Tree Diseases

Typically growing as understory or at wood edge in large thickets.

Walking stick tree diseases.

Note that this plant can spread indefinitely. Occasional disease problems include black knot crown gall apple mosaic virus and leaf spot. It occurs primarily in the eastern half of the country as well as oregon. One disease of particular concern is eastern filbert blight.

The disease that is attacking them is called eastern filbert blight. Branch dieback occurs when cankers girdle the stems. It is a small tree or large shrub that grows up to 8 feet in height and spread but can be kept smaller with pruning. This doesn t seem to be a widespread problem but it is happening.

Look also for cankers on limbs especially in the upper canopy. Henry lauder s walking stick infected with eastern filbert blight is probably too sick to save. Some harry lauder s walking stick plants corylus avellana contorta are being attacked and are dying slowly. If you see this prune them out one to three feet below where they stop on a branch.

No serious disease or insect problems. On hazelnuts native to wisconsin such as american hazelnut corylus americana and beaked hazelnut corylus cornuta the disease causes little significant damage but on the commonly grown european hazelnut corylus avellana including harry lauder s walking stick corylus avellana contorta the disease is lethal. Tolerant of most sites best in full sun to light shade under tall trees. All you can do is scout for the stromata masses of fungal tissue that looks like alligator skin on branches stems.

You are most likely dealing with eastern filbert blight a disease. Disease pests and problems. It is a cultivar of the tree species european filbert and a close relative to american hazelnut and turkish filbert. If your tree comes down with the blight you will notice flowers and foliage turning brown wilting and dying.

Learn more about monrovia plants and best practices for best possible plant performance. Botanically known as corylus avellana contorta harry lauder s walking stick is one of the most interesting interesting plants you can put in your landscape and probably one of the least understood. Harry lauder s walkingstick corylus avellana contorta is also known as contorted filbert and corkscrew filbert. Prune out shoots to maintain the spread of the plant within desired size.

Affected branches should be removed and destroyed but viruses in particular are very hard to treat. Common pests diseases this shrub has good resistance to the filbert blight that can devastate other members of the genus.