Robert Camp working on peeling a small bolt.
A small bolt peeled and ready for inspection.
Once the bark has been peeled, it is ready for inspection under a microscope. If beetles are present, they are counted and their galleries are measured using a map ruler to quantify distance.
Michael and John counting beetles under the scope.
A beetle gallery and larvae.
Can you see the WTB larvae under the red mark?
A WTB larvae inside a gallery.
