Collar Rot

Appears in

Oxford Companion to Wine

Oxford Companion to Wine

By Jancis Robinson

Published 2006

  • About

collar rot, one of the fungal diseases of the vine which particularly attacks young vines growing in cool, moist soil, via the Pythium fungus. The vines are weakened and may die. Vines grafted on to Rupestris St George rootstocks are most susceptible. Control is achieved by removing soil from the base of the trunk and reducing soil moisture.