Japanese Maple Verticillium Wilt
This often happens in late summer or early fall.
Japanese maple verticillium wilt. Department of agriculture plant hardiness zones 5 through 8 although they can be cultivated over a. Some trees have natural resistance or immunity to verticillium wilt. Symptoms are pretty obvious. If you or a neighbor had a problem with the disease you might be better off planting a plane tree instead of a maple.
This wilt is caused by a fungus in the soil. It forms microsclerotia that germinate in response to exudates from. Verticillium wilt is a serious fungal disease that causes injury or death to many plants. Japanese maples acer palmatum grow outdoors across u s.
It spreads from the roots upward through the sap to the upper branches causing large limbs to die. If a tree died because of verticillium wilt do not replant the same tree species in that exact location or nearby. Verticillium dahliae a soilborne fungus that is almost impossible to eradicate once established in the soil there are over 300 plant species susceptible to this fungus. In some cases the leaves on a single branch will discolor and die but do not fall from the tree.
Cause samples with verticillium wilt have dominated the maple problem diagnoses sent to the osu plant clinic. The brown dead foliage you observe may be because of infection by the verticillium dahliae fungus. Verticillium wilt on japanese maples. Verticillium wilt in the pacific northwest.
If the leaves of your japanese maple have leaves that are wilting and turning yellow or brown it might have verticillium wilt. Commonly infected woody plants include maple smoke tree catalpa and magnolia among others.
