Benzoylprop
chemical compound
Benzoylprop (or benzoylprop-ethyl) is a herbicide introduced in 1969 to control wild oats. It was considered obsolete, but was reintroduced in Iran in 2017 to combat herbicide resistance. It is a selective, postemergent, amide, arylalanine, arylaminopropionic acid herbicide, of the dichloroaniline propionate family.
Benzoylprop-ethyl is the common chemical version, though its herbicidal activity comes after it degrades post application to benzoylprop, the acid.
Data in the information box is given for benzoylprop-ethyl.
History
Benzoylprop-ethyl was introduced in 1969, and to Iran in 1975. In 1986, 64,000 hectares (158,000 acres) were treated with benzoylprop in the United Kingdom.
The high application rate, about 1000 g/Ha active ingredient, and narrow target spectrum, of winter wild oats and wild barley made it uncompetitive against other herbicides, and in the 1990s its use ended in Iran, replaced with broad-spectrum ACCase- and ALS-inhibitor herbicides. As of 2025 the Pesticide Properties Database still reports benzoylprop to be obsolete.
With herbicide-resistant wild oats reported in Australia, France and Iran by 2019, and with resistant wild barley becoming common in Iran, it was re-introduced in 2017 as "Piraffix".
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This entry incorporates text from “Benzoylprop” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.