University of California

Combining bensulide and pendimethalin controls weeds in onions


Carl E. Bell
Brent E. Boutwell

Publication Information

Hilgardia 55(1):35-38. DOI:10.3733/ca.v055n01p35. January 2001.

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DCPA was the principal preemergence herbicide for controlling weeds in onions until its manufacture was discontinued in 1996, although it may be reintroduced in 2001. The purpose of this research was to test the effectiveness of a combination of two herbicides, bensulide and pendimethalin, as a replacement weed-control treatment. Results are encouraging; this combination performed as well as DCPA in 12 onion field trials conducted in the Imperial Valley. Onion yields in fields treated with bensulide and pendimethalin were comparable to that of fields treated with DCPA.


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Bell C, Boutwell B. 2001. Combining bensulide and pendimethalin controls weeds in onions. Hilgardia 55(1):35-38. DOI:10.3733/ca.v055n01p35
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