Advancing Semiochemical Tools for Mountain Pine Beetle Management: Dendroctonus ponderosae Responses to Saprophytic Fungal Volatiles

From those FVOCs, we recommended four compounds-2-pentanone, 2-heptanone, 2-pentanol, and phenylethyl alcohol-for use in future field tests as anti-attraction lures for MPBs. In bioassays, we also observed strong MPB repellency from FVOCs released by <i>T. atroviride</i>, as well as the mild effects of FVOCs on MPB feeding activity. Our findings highlight the potential for these FVOCs to be utilized in the development of more effective MPB anti-attractant lures, which are crucial for the monitoring and management of low-density MPB populations.