Phytochemicals as mediators for host range expansion of a native invasive forest insect herbivore

Summary Mountain pine beetle ( MPB ) has recently invaded jack pine forests in western Canada. This invasion signifies a climate change‐induced range expansion by a native insect. The mechanism underlying this invasion is unknown, but likely involves phytochemicals that play critical roles in MPB biology. Thus far, studies have investigated the compatibility of jack pine chemistry with beetles and their microbial symbionts. I have identified...