What's Wrong with My Smokebush?
The Smoke Tree (Cotinus Coggygria), a Small Ornamental Tree, Often Suffers from Verticillium Wilt, a Fungal Disease Caused from the Fungi Verticillium...
The smoke tree (Cotinus coggygria), a small ornamental tree, often suffers from Verticillium wilt, a fungal disease caused from the fungi Verticillium albo-atrum or Verticillium dahliae. ... Other diseases, such as stem canker and leaf or rust spot, can occur on the tree but are rarely fatal.
What is wrong with my smoke bush?
If the American smoke tree's leaves wilt and begin to turn yellow around the edges, verticillium wilt may be to blame. This soilborne fungal disease can also cause dark streaks in the sapwood. ... Prune away infected areas and clear fallen leaves and other plant debris from around the tree.
Why are my smoke tree leaves turning brown?
Smoke trees are susceptible to leaf spots caused by a variety of pathogens, such as fungi that lead to cercospora leaf spot. This disease results in round to irregular spots in colors including brown with dark borders. Spots may appear sunken, and tissue often falls from the leaf, leaving a hole in its place.
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