Violet root rot on Douglas fir and Pinus contorta.

Abstract

In the second week of November 1957, a complaint was received from a nursery in Co. Wicklow that something was wrong with a large plot of three year old transplants of Douglas fir, and an inspection of the nursery in question showed that many transplants both of Douglas fir and Pinus contorla were sickly and obviously infected with some parasite...