Princeton University

How Can Wild Plants Help Prevent Crop Loss?

The video examines how wild plant genetics can help curb the roughly 20% annual crop loss caused by pests and pathogens, focusing on a multi‑year study of flax and its rust pathogen across the Rocky Mountains. Researchers tracked the epidemic over seven summers, finding that the rust spreads more quickly at lower elevations where earlier snowmelt and higher temperatures create favorable conditions. Conversely, higher altitudes slow disease progression, highlighting climate’s direct role in pathogen dynamics. Jessica, a Princeton undergraduate, notes the scarcity of altitude‑spanning epidemic data and credits funding from the High Meadows Environmental Institute for enabling the unique dataset. She emphasizes the collaborative nature of the project, which blends cutting‑edge science with hands‑on student training. The findings suggest that breeding programs can tap wild relatives’ resistance genes and adapt crop management to elevation‑specific climate trends, offering a pathway to more resilient agriculture as growing seasons shorten and droughts intensify.