Sphaeropsis sapinea Cankers on Stressed Red and Jack Pines in Minnesota and Wisconsin

Thomas H. Nicholls

Plant Disease · 1990 · 57 citations · 0 references

Concepts

Abstract

(...). The incidence and impact of the disease was documented on study plots with low site indices. Tree mortality ranged from 2 to 51% on study plots and was consistently associated with S. sapinea. Cankers occurred more frequently on trees exposed to environmental stresses such as poor site conditions, drought, hail, snow, and insect wounds