Control of Armillaria root rot in managed coniferous forests.

Control of Armillaria root rot through the use of resistant species, avoidance of hazardous sites, cultural manipulation, chemical applications, biological methods, and integrated biological methods are dis-cussed. The need for a critical evaluation of disease impact and a financial analysis of control costs and benefits are emphasized. Avoiding establishment of plantations on sites likely to have a high disease hazard or the removal of substrate sources through uprooting stumps and dislodging root remanents currently appear to offer the most effective means of control.