Science

Researchers find that some weeds get supercharged by an indirect hit of herbicide

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 15/10/2026, 19:25:24 UTC.

Briefings

University of Michigan researchers discovered that low doses of the herbicide dicamba cause the weed wood sorrel to produce significantly more flowers. This indirect effect suggests farmers inadvertently strengthen weeds near field or lawn perimeters, with findings published in New Phytologist.

Key points

• Low doses of dicamba herbicide trigger wood sorrel to produce more flowers, a mechanism previously unknown.
• The study was published in the journal New Phytologist.

Context and limitations

Evidence covers only the specific dicamba-wood sorrel interaction; broader impacts on other weeds or ecosystem effects remain unmeasured.

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