How to Manage Pests

Pests in Gardens and Landscapes

Pest identification and confirmation—Eutypa dieback

Eutypa dieback can be confused with boron deficiency. Both disorders cause a delay in shoot emergence and a chlorosis of leaves. You can confirm the presence of Eutypa dieback by the characteristic wedge-shaped, darkened cankers that develop in the vascular tissue of wood.

Dwarf appearance of boron deficient shoots
Dwarf appearance of boron deficient shoots

Developing canker of Eutypa dieback
Developing canker of Eutypa dieback


Statewide IPM Program, Agriculture and Natural Resources, University of California
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