Tree health in Illinois is on the decline. One major issue contributing to this is the widespread use of weedkillers on commercial farms, lawns and turf. Herbicide drift, or the movement of toxic chemicals found in common weedkillers to non-targeted plants and trees, is damaging leaves, branches and even fruit. Not only do these chemicals affect plant growth, it’s still unclear whether it has an impact on human health too. Reset learns how herbicide drift is hurting the long term health of natural biodiversity. For a full archive of Reset interviews, head over to wbez.org/reset.