It goes both ways. When you have a year of very light rain or no rain, you don't do prescribed burns. As for the tracking of whether it works, it's a bit difficult in that context. It will require time.
Then there's the question of whether you judge the result based on slowing the spread. It's clear that there are those sudden, big, fast waves of beetle migrations. Long flights will happen every several years. Between those, every year, you will have a small spread, so it's really difficult from a science basis to assess or certify that your work is slowing the spread. That's clearly what we're trying to do.