Weed Technology (2008) 22, 97-100

W James Grichar, Paul A. Baumann, Todd A. Baughman and Jason D. Nerada (2008)
Weed control and bermudagrass tolerance to imazapic plus 2,4-D
Weed Technology 22 (1), 97-100
Abstract: Field studies were conducted during the 2000 and 2001 growing seasons to evaluate imazapic plus 2,4-D for weed control and bermudagrass tolerance. Imazapic at 140 g ai/ha plus 2,4-D at 280 g ai/ha or greater controlled dallisgrass at least 82% and provided at least 90% control of field sandbur, johnsongrass, and field mint. A mixed stand of Texas panicum and large crabgrass was controlled less than 75% and bahiagrass less than 25% with all rates of imazapic plus 2,4-D. Coastal bermudagrass injury was greater than 24% at three of four locations and Tifton 85 injury was greater than 50% at 3 wk after treatment with rates of imazapic plus 2,4-D as low as 70 plus 140 g/ha. Coastal bermudagrass yield was reduced at the first cutting with imazapic plus 2,4-D at 140 plus 210 g/ha and 240 plus 420 g/ha. Imazapic plus 2,4-D at 200 plus 350 g/ha reduced Tifton 85 forage production at the first two cuttings.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): W. James Grichar

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Digitaria sanguinalis (weed)	Cynodon (crop)
	Urochloa texana (weed)	Cynodon (crop)
	Sorghum halepense (weed)	Cynodon (crop)
	Paspalum notatum (weed)	Cynodon (crop)
	Paspalum dilatatum (weed)	Cynodon (crop)
	Perilla frutescens (weed)	Cynodon (crop)
	Cenchrus spinifex (weed)	Cynodon (crop)