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1 July 2007 Herbicide Evaluation for Fresh Market Celery
Oleg Daugovish, Steven A. Fennimore, Richard F. Smith
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Field studies were conducted near Oxnard, CA and in two locations near Salinas, CA in 2002 and 2003 to evaluate efficacy and safety of six herbicides in celery. s-metolachlor at 0.6 and 0.7 kg ai/ha and flufenacet at 0.5, 0.6, and 0.7 kg ai/ha PRE were safe to celery and controlled 81 to 94% of yellow nutsedge at densities < 20 plants/m2. At yellow nutsedge densities > 20 plants/m2, the most efficacious treatments were 1.1 kg/ha of s-metolachlor or 0.7 kg/ha of flufenacet, which reduced nutsedge densities by 71 or 53%, respectively; however, both resulted in slight injury to celery. All other herbicides generally did not injure celery and none reduced marketable crop yield. Flumioxazin pretransplant (PRE) at 0.1 and 0.2 kg ai/ha controlled broadleaf weeds near 100% at all locations, suggesting that it can be an effective alternative to standard linuron and prometryn, which are applied post-transplant (POST) in celery.

Nomenclature: S-metolachlor, flufenacet, flumioxazin, prometryn, linuron, oxyfluorfen, yellow nutsedge, Cyperus esculentus L. CYPES, celery, Apium graveolens L

Oleg Daugovish, Steven A. Fennimore, and Richard F. Smith "Herbicide Evaluation for Fresh Market Celery," Weed Technology 21(3), 719-723, (1 July 2007).
Received: 13 December 2006; Accepted: 1 March 2007; Published: 1 July 2007

Celery weed control
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