Tayor & Francis is investigating two papers about the weed killer Roundup following claims the articles were ghostwritten by the company that developed the herbicide. The review comes after an Elsevier journal last year retracted a paper about Roundup linked to court documents that revealed company employees wrote the article but were not named as coauthors. Authors of the two latest papers under scrutiny stand by their work and deny any ghostwriting occurred.

Glyphosate, the active ingredient in Roundup, is highly contentious, with critics arguing the substance is carcinogenic and supporters contending the chemical is safe. The U.S. Supreme Court is currently weighing whether states can hold companies liable for failing to include cancer warnings on products containing the substance.

In December 2025, Regulatory Toxicology and Pharmacology retracted a 2000 review article about glyphosate by Gary Williams, then a pathologist at New York Medical College in Valhalla, and two colleagues. The retraction came eight years after emails surfaced in court that revealed employees of Monsanto, which developed Roundup, ghostwrote the paper.

Source https://retractionwatch.com/2026/06/15/glyphosate-roundup-safety-ghostwriting-claims-critical-reviews-toxicology/

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