Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Serviceberry > Dead twigs, branches or trunk
Serviceberry > Trunk/branches > Dead twigs, branches or trunk
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Roundheaded appletree borer
Saperda candida
- Dead stems and stem breakage
- Cracks or splits in bark on lower stems
- Areas of darkened bark and sap oozing from entrance hole
- Larvae have round bodies, tan to cream colored, legless, about 1 – 1 ½" long
- Adult brown with two white stripes, about ¾" long with equally long antennae
- More information on Roundheaded appletree borer
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Blister canker
Biscogniauxia marginata
- Dead branches in the canopy
- Elongate, darkened canker on trunk or branch often centered on a crack or wound
- Reddish brown discoloration of sapwood extending up and down from crack or wound
- Round flat gray to black fungal spore producing structures up to ¼ inch across, push through bark on infected branches
- Bark often peels back in rolls on infected branches
- Most common on drought stressed, wounded trees
- More information on Blister canker
