Walking Stick Tree Diseases

Common pests diseases this shrub has good resistance to the filbert blight that can devastate other members of the genus.

Walking stick tree diseases. 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. Prune out shoots to maintain the spread of the plant within desired size. It occurs primarily in the eastern half of the country as well as oregon. Some harry lauder s walking stick plants corylus avellana contorta are being attacked and are dying slowly.

Harry lauder s walkingstick corylus avellana contorta is also known as contorted filbert and corkscrew filbert. If your tree comes down with the blight you will notice flowers and foliage turning brown wilting and dying. One disease of particular concern is eastern filbert blight. Occasional disease problems include black knot crown gall apple mosaic virus and leaf spot.

Tolerant of most sites best in full sun to light shade under tall trees. Disease pests and problems. 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. No serious disease or insect problems.

This wonderful plant with it s array of twisted and contorted branches will happily grow in zones 4 through 8 and is one of the few plants that really has no serious disease or insect pest problems. Henry lauder s walking stick infected with eastern filbert blight is probably too sick to save. This doesn t seem to be a widespread problem but it is happening. It is a cultivar of the tree species european filbert and a close relative to american hazelnut and turkish filbert.

Look also for cankers on limbs especially in the upper canopy. If you see this prune them out one to three feet below where they stop on a branch. Branch dieback occurs when cankers girdle the stems. Monrovia s harry lauder s walking stick details and information.

Typically growing as understory or at wood edge in large thickets. The disease that is attacking them is called eastern filbert blight. 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.

You are most likely dealing with eastern filbert blight a disease. Affected branches should be removed and destroyed but viruses in particular are very hard to treat.