Interaction of 2,4-DB With Postemergence Graminicides

York, Alan C.; Wilcut, John W.; Grichar, W. James

doi:10.3146/i0095-3679-20-1-15

Cited by 14 publications

(12 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although pyrithiobac suppresses annual and perennial grasses, it can cause antagonism of graminicides (Ferreira and Coble 1994;Jordan et al 1993). In addition, the phenoxy herbicide 2,4-DB can reduce efficacy of clethodim (York et al 1993).…”

Section: Introductionmentioning

confidence: 99%

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic¹

Burke¹,

Price²,

Wilcut³

et al. 2004

Weed Technology

Self Cite

View full text Add to dashboard Cite

Field experiments were conducted to evaluate possible interactions of clethodim with imazapic applied as mixtures or sequentially for control of broadleaf signalgrass, fall panicum, goosegrass, and large crabgrass. Imazapic at 70 g ai/ha alone controlled grass weeds inconsistently, whereas clethodim at 140 g ai/ha alone controlled the same weeds at least 99%. Imazapic did not affect broadleaf signalgrass control by clethodim. Reduced control of fall panicum, goosegrass, and large crabgrass was observed when clethodim and imazapic were applied in mixture. Antagonism of clethodim occurred when clethodim was applied 1 d before or up to 3 d after application of imazapic (fall panicum and large crabgrass). Antagonism of goosegrass control was noted when imazapic was applied 3 d before or up to 7 d after application of clethodim. In other experiments, large crabgrass and Texas panicum control by clethodim (70 and 140 g/ha) applied alone or with imazapic (70 g/ ha) or bentazon (1.1 kg ai/ha) plus 2,4-DB (0.28 kg ai/ha) either with or without ammonium sulfate (2.8 kg/ha) was evaluated. Texas panicum control by clethodim was reduced by imazapic regardless of the ammonium sulfate rate. However, large crabgrass control by imazapic was not affected in these experiments. Control of both grasses by clethodim was reduced substantially by bentazon plus 2,4-DB, although in some instances ammonium sulfate improved control when in mixture. Ammonium sulfate improved control by clethodim in some instances irrespective of the broadleaf–sedge herbicide treatments.

show abstract

Section: Introductionmentioning

confidence: 99%

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic¹

Burke¹,

Price²,

Wilcut³

et al. 2004

Weed Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…The 2,4-DB molecule is not readily absorbed or phytotoxic, but the secondary metabolite (2,4-D) resulting from beta oxidation is both mobile and phytotoxic (Wathana et al, 1972;Wehtje et al, 1992) in many species. Much research can be found that documents peanut plant injury and/or yield response to 2,4-DB and imazapic (Brecke and Stephenson, 2006;Grey and Wehtje, 2005;Grichar, 2007;Hicks et al, 1998;Wehtje et al, 1993;York et al, 1993), however, little research has been reported on the effects that herbicides may have on seed quality. Lancaster et al (2005) reported that 2,4-DB reduced seed germination of sickelpod (Senna obtusifolia L. Irwin and Barneby) 30 to 40% when applied just prior to flowering or during peak flowering.…”

mentioning

confidence: 99%

Effect of Imazapic and 2,4-DB on Peanut Yield, Grade, and Seed Germination

Faircloth¹,

Prostko²

2010

Peanut Science

View full text Add to dashboard Cite

Recurrent problems with peanut seed germination and stand establishment have raised concerns about the potential effects of herbicides on peanut seed quality. Field trials were conducted in south Georgia in 2005 and 2006 to evaluate the effects of imazapic and 2,4-DB on peanut yield, grade, incidence of tomato spotted wilt virus (TSWV), and seed germination. Imazapic at 71 g ai ha 21 , applied at 30 and 40 days after planting (DAP), and 2,4-DB at 270 g ai ha 21 , applied at 75 or 90 DAP, had no effect on peanut yield, grade, incidence of TSWV, and seed germination when averaged over two locations (Dawson and Tifton) and three cultivars (Georgia Green, Georgia-01R, and C-99R). Normal cultivar yield variations were observed; however, Georgia-01R had reduced standard (25 C) and cold (15 C) germination when compared to the other cultivars.

show abstract

“…Studies on the control of annual grasses in peanut generally focus on herbicide combinations and their interactions (Burke et al 2004;Grichar et al 2002;York et al 1993) or control with PRE herbicides (Brecke and Currey 1980;Grichar et al 1994;Johnson et al 2002;Prostko et al 2001). However, when POST applications of graminicides were delayed 2 wk, from 3 WAP to 5 WAP, peanut yields were reduced up to 1,800 kg/ha depending on rate and herbicide (Grichar and Boswell 1986).…”

Section: Resultsmentioning

confidence: 99%

Critical Period of Grass VS. Broadleaf Weed Interference in Peanut

Everman¹,

Burke²,

Clewis³

et al. 2008

Weed Technology

Self Cite

View full text Add to dashboard Cite

Studies were conducted to evaluate the effects of grass and broadleaf weeds on peanut growth and peanut yield. In separate studies, grass or broadleaf weeds were allowed to compete with peanut for various intervals to determine both the critical timing of weed removal and the critical weed-free period. Hand-weeding and selective herbicides were used at appropriate times to remove and terminate weed growth. These periods were then used to determine the critical period of weed control. The effects of various weedy intervals on peanut yield were also investigated. The critical period of grass weed control was found to be from 4.3 to 9 wk after planting (WAP), whereas the critical period of broadleaf weed control was from 2.6 to 8 WAP. Peanut yields decreased as weed interference intervals for both grass and broadleaf weeds increased, demonstrating the need for control of both grass and broadleaf weeds throughout much of the growing season.

show abstract

Interaction of 2,4-DB With Postemergence Graminicides

Cited by 14 publications

References 24 publications

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic¹

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic¹

Effect of Imazapic and 2,4-DB on Peanut Yield, Grade, and Seed Germination

Critical Period of Grass VS. Broadleaf Weed Interference in Peanut

Contact Info

Product

Resources

About

Interaction of 2,4-DB With Postemergence Graminicides

Cited by 14 publications

References 24 publications

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic1

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic1

Effect of Imazapic and 2,4-DB on Peanut Yield, Grade, and Seed Germination

Critical Period of Grass VS. Broadleaf Weed Interference in Peanut

Contact Info

Product

Resources

About

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic¹

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic¹