Resource Database


Resource Number: 46346
Title: Branch Canker and Dieback of Leyland Cypress
Resource Type: Fact sheet
Description:

This disease may be actually caused by two fungi, Seiridium unicorne or Botryosphaeria dothidea. Seiridium canker is perhaps the most significant and damaging disease on Leyland cypress. Botryosphaeria canker produces symptoms similar to Seiridium canker. Both disease organisms attack plants that are stressed by environmental factors, such as wounds, drought and freezing. The most obvious indication of these diseases is the browning and subsequent dieback of a leader or major side branch.

Last Updated: January 29, 2025
Contributors:
Domain(s)/Area(S):