What does the published scientific research say about Chondrostereum purpureum?

The Chondrostereum purpureum sprout-control literature spans trials in Europe, North America, and New Zealand. Studies on birch (Betula pendula and B. pubescens) report stump mortality of 56–86% in field conditions, with one breeding study achieving 78% mortality in top progeny. Research cited in peer-reviewed literature also found that heavy rainfall at application delayed efficacy but did not significantly reduce final stump mortality, and that no adjuvants improved outcomes.

Field research on tanoak (Notholithocarpus densiflorus) and California bay laurel (Umbellularia californica) found that C. purpureum can colonize these hosts and showed some reduction in sprout survival, though the most rapid treatment in those trials remained chemical imazapyr. A separate indexed study examined C. purpureum-transformed dry olive residue as a soil amendment for risk-element immobilization — a distinct research application also appearing in the literature record.