Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous Trees > Honeylocust > Dead branches or branch dieback
Honeylocust > Branches > Dead branches or branch dieback
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Ganoderma root and butt rot
Ganoderma spp.
- Canopy appears thin with few leaves and multiple dead branches
- Leaves are smaller in size and turn yellow earlier than normal
- Fungal conks, a semicircle shelf fungi, can be found from the base of the tree up to 3 feet high on the trunk
- Conks are reddish brown and shiny on top, white and porous underneath, a rim of white may be visible on the edge of growing conks
- Infected wood at the base of the tree is white, soft, stringy or spongy
- Infected trees frequently break or fall over in storms
- More information on Ganoderma root and butt rot
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Sapwood rot
Schizophyllum commune
- Dead branches within the canopy
- Groups or rows of small (<2 inches wide) semi-circle self fungi along killed branches or on the main trunk
- Shelf fungi are white and appear fuzzy on top
- Common on trees with an open wound or crack
- Wood below fungal shelves is yellowish to white, crumbly and decayed; bark around fungal shelves is killed and often falls off
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Coral spot canker
Nectria cinnabarina
- Dead branches and twigs, often first observed in early spring when no leaves form
- Or, wilting soon after leaves emerge in spring
- Sunken dark brown area on branch that is often cracked or has a ridge at the edge
- Raised cushion-like bumps on affected branches, may be cream to orange or red, turn black with age
- Common on trees stressed by drought, recent transplant or other factors
- More information on canker
