Almond pruning wounds, bark abrasions susceptible to Ceratocystis

Abstract

In the past, pruning wounds were not regarded as potential infection sites. However, in a 2-year study, pruning cuts inoculated immediately or at intervals up to 14 days were found to be susceptible to Ceratocystis canker from September through February. Broken, dead or living twigs became infected throughout the year when inoculated with the fungus.