Benomyl

Benomyl is a systemic fungicide developed by DuPont in the 1960s. Its chemical name is methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate. It is a broad-spectrum fungicide used to control a variety of fungal diseases on fruits, vegetables, and ornamental plants. Benomyl works by inhibiting the growth of fungal cells. It is absorbed by the plant and moves systemically, providing protection from within.

Commonly, benomyl was formulated as a wettable powder or a liquid suspension. It was effective against diseases such as powdery mildew, scab, botrytis, and leaf spot. While effective, prolonged use of benomyl could lead to the development of resistant fungal strains, a common issue with many fungicides.

Concerns regarding benomyl's safety led to regulatory scrutiny. Studies indicated potential reproductive and developmental toxicity. As a result, its use has been restricted or banned in many countries. For instance, the United States Environmental Protection Agency (EPA) cancelled most registrations for benomyl in the early 2000s due to health concerns. Alternative fungicides with more favorable safety profiles are now widely used in its place.