I guess everybody wishes that they were able to find a silver bullet. There is a technological issue here, which is that we don't know of an effective means of eradicating it.
There's another major contributing factor. One limiting factor was removed with global warming. Another thing that's not a limiting factor but is a factor that promotes the spread of this, I think, is referred to as monoculture, and there are some forest enhancement practices of the past that lead to a fairly homogenous stand. Obviously if you have a disease and a susceptibility, and every tree in a large area is susceptible, then you reach epidemic levels.
The way we are trying to manage our mandate to manage for ecological integrity is to have much more diverse forest types, with more mosaic, more age range, within an established patch, and those types of forests are much less susceptible to large-scale infestation and large-scale impact. Normally, the types of habitats that we are trying to restore and to establish and maintain are less prone to being highly impacted compared with commercially harvested lands. That's true for most of those pests, if not all. That's true for the spruce budworm and other types of insect pests.