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Herbicides Applied at or Shortly after Seeding Are Effective for Weed Control in Seedling Buffalograss
Author(s) -
Li Luqi,
Sousek Matthew D.,
Reicher Zachary
Publication year - 2015
Publication title -
crop, forage and turfgrass management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.29
H-Index - 10
ISSN - 2374-3832
DOI - 10.2134/cftm2015.0150
Subject(s) - weed , agronomy , weed control , seeding , mesotrione , foxtail , simazine , seedling , setaria viridis , digitaria sanguinalis , biology , atrazine , pesticide
Herbicides applied shortly after seeding of buffalograss [ Buchloe dactyloides (Nutt.) Engelm.] can help reduce weed pressure and maximize establishment of buffalograss. This study evaluated 12 relatively recently developed herbicides for turf safety and weed control when applied at seeding or 0 or 2 weeks after emergence (WAE) of ‘Bowie’ or ‘Sundancer’ buffalograss. Primary weed species on the site were common purslane ( Portulaca oleracea L.), redroot pigweed ( Amaranthus retroflexus L.), and/or yellow foxtail [ Setaria lutescens (Weigel ex Stuntz) F.T. Hubb.]. Regardless of cultivar, untreated checks had <15% buffalograss cover and >53% weed cover by 6 WAE, whereas most of the herbicide treatments resulted in >80% buffalograss cover and <20% weed cover. Mesotrione, sulfentrazone, quinclorac, carfentrazone, simazine, amicarbazone, sulfentrazone + quinclorac, carfentrazone + quinclorac, or sulfentrazone + prodiamine applied either at seeding or 0 WAE are safe on Bowie or Sundancer buffalograss, effectively minimize weed pressure, and maximize buffalograss establishment. Herbicides applied at 2 WAE were less effective than earlier applications at minimizing weed pressure and resulted in lower buffalograss establishment.