Postemergence Southern Crabgrass (Digitaria Ciliaris) Control with Sulfonylurea Herbicides

Autor:	Barry J. Brecke, Kendall C. Hutto, J. Bryan Unruh
Rok vydání:	2008
Předmět:	ved/biology medicine.drug_class ved/biology.organism_classification_rank.species Plant Science Biology Weed control Sulfonylurea Pendimethalin chemistry.chemical_compound chemistry Digitaria ciliaris Agronomy Flazasulfuron medicine Initial treatment Quinclorac Weed Agronomy and Crop Science
Zdroj:	Weed Technology. 22:354-358
ISSN:	1550-2740 0890-037X
DOI:	10.1614/wt-07-063.1
Popis:	Southern crabgrass is a major weed in turfgrass and it primarily is controlled through preemergence herbicide application. Separate studies were conducted to evaluate the efficacy of trifloxysulfuron and flazasulfuron alone and in tank mixtures for southern crabgrass control in bermudagrass as MSMA alternatives. In 2001, two applications of trifloxysulfuron at 0.03 kg ai/ha 6 wk apart controlled southern crabgrass equal to MSMA applied twice at 2.2 kg ai/ha 7 d apart (91% compared to 90%, respectively) 90 d after initial treatment (DAIT), but provided greater control than MSMA in 2002 (80 versus 74%, respectively) 90 DAIT. Two applications of trifloxysulfuron at 0.02 kg/ha tank mixed with MSMA at 1.1 kg/ha controlled southern crabgrass 90%, greater than either two applications of trifloxysulfuron or MSMA applied alone (80% and 74%, respectively). In the second study, flazasulfuron applied at 0.05 kg ai/ha tank mixed with prodiamine at 1.1 kg ai/ha, pendimethalin at 1.6 kg ai/ha, or quinclorac at 0.84 kg a...
Databáze:	OpenAIRE
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