The project initially focussed on harvester transmission of staining fungi and insect transmission to logs in the forest and sawmill yard. Both harvesters and insects were confirmed to be major sources of bluestain infection. This work emphasized the importance of insect control measures in mill yards and a new project on mitigating harvester-related bluestain was recommended. Other related projects targeted potential control measures, such as sour-felling (crown drying) to reduce nutrients and moisture, biological control using albino fungi, and inventory control. Biocontrol work continued to be done under this project in 2005. We have assisted with the registration of a biocontrol agent and also examined the feasibility of developing a prototype harvester applicator system in collaboration with UBC mechanical engineering students. This spawned a separate project that looks into development of a spray applicator system on a commercial scale. In February 2004 and August 2005 we examined sources of bluestain in sawmills, such as air, sawdust and machinery. This work showed machinery as a possible mechanism for spreading bluestain from one piece of lumber to another during the milling. As each piece of work was completed, further data gaps were identified.