I'm not aware of any evidence that shows that we prolonged the outbreak cycle through our efforts as the outbreak progressed through the late 1970s and 1980s. It could be that there were some indirect effects, but I'm not aware of them myself. I can speak more comfortably about the results we've seen from the most recent outbreak, which started in the New Brunswick area around 2013, and the positive aspects we've seen in this early intervention at the beginning of the cycle.
We do have a fairly extensive scientific record of the progression of outbreak cycles and populations as they move through Atlantic forests. In particular, I'm thinking of the large-scale control, if you will, that was effectively Cape Breton Island and Nova Scotia during the last outbreak cycle. We do have effective controls that we look at to try to understand population dynamics and impacts.
Specific to your question, I'm not aware of anything conclusive.