Effect of Dinitroaniline Herbicides upon Yield and Grade of Five Runner Cultivars1

Grichar, W. James; Colburn, A. E.

doi:10.3146/i0095-3679-20-2-15

Cited by 16 publications

(19 citation statements)

References 4 publications

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“…Bailey et al (2000) evaluated the tolerance of eight virginia market-type cultivars to diclosulam at 36 g/ha and observed~3% visual injury and no effect on peanut yield. Previous research with other herbicides has in some instances indicated differential cultivar response (]ohnson et al, 1992), while tolerance to other herbicides was independent of cultivar (Grichar and Colburn, 1993;Johnson et al, 1993).…”

mentioning

confidence: 95%

Comparison Between Diclosulam- and Imazapic-Based Weed Control Systems in Peanut1

Brecke¹,

Wehtje²,

Paudel

2002

Peanut Science

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Field studies were conducted in Florida and Alabama in 1998and 1999to evaluateimazapic [70gailhapreemergence (PRE) or early postemergence ( EPOST)], diclosulam (18 or 26 g ailha PRE or 18 glha EPOST) or imazapic + diclosulam (35 + 13 glha PRE or 35 + 9 glha EPOST). These treatments were applied alone or supplementedwith eitheraparaquat + bentazon tank mixture or 2,4-DB. The intentwasto determine ifdiclosulam, which has a mode of action similar to imazapic and is less persistent and less costly, could be incorporated into systemswith other herbicides and thereby offer an alternative to imazapic. Maximumyield and economic return were consistently associated with only two treatments, imazapic at 70 glha EPOST and imazapic + diclosulam at 35 + 9 glha EPOST. However, none of the diclosulambased systems provided a more favorable economic return than imazapic applied alone due to poor sicklepod control with diclosulam. Sicklepod control with diclosulam was improved with the addition of either paraquat + bentazon or 2,4-DB,but control was less than that obtained with imazapic. Diclosulam-based systems could be identified that were as effective as imazapic alone in controlling Florida beggarweed (diclosulam 26 glha EPOST or imazapic + diclosulam PRE or EPOST), bristly starbur (diclosulam 18 glha PRE or imazapic + diclosulam PRE or EPOST) and yellow nutsedge (imazapic + diclosulam EPOST). Thus, diclosulambased systems may offer an economic advantage over imazapic in areas void of sicklepod. Neither diclosulam nor imazapic adversely affected any of five runner-type peanut cultivars (Georgia Green, Southern Runner, ViruGuard, Florida MDR 98, or Florida C-99R) when applied at twice labeled rates.

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confidence: 95%

Comparison Between Diclosulam- and Imazapic-Based Weed Control Systems in Peanut1

Brecke¹,

Wehtje²,

Paudel

2002

Peanut Science

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“…This theory is in agreement with Merkle (1975) who stated that initial root stunting from dinitroaniline herbicides usually does not cause yield reduction, unless complicated by adverse weather conditions or diseases. Furthermore, Grichar and Colburn (1993) reported no yield differences be tween peanut treated with pendimethalin and ethalfluralin PPI at registered rates. Hall et al (1985) speculated that herbicides applied in greenhouse trials may be more active than in compli mentary field trials.…”

Section: Time Of Emergencementioning

confidence: 99%

Peanut Seedling Response to Dinitroaniline Herbicides Applied Preplant Incorporated and Preemergence1

Johnson¹,

Mullinix

1999

Peanut Science

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Greenhouse studies were conducted in 1995, 1996, and 1998 to measure the effect of preplant incorporated (PPI) and preemergence (PRE) applications of ethalfluralin and pendimethalin on growth of individual peanut seedlings in pots. Herbicide rates evaluated were 0, 0.6, 1.1, and 2.2 kg ai/ha for each herbicide. Parameters measured were time of emergence, seedling height, canopy width, foliage biomass, root length, and root biomass of individual plants. PPI applications were more injurious than PRE applications for all parameters regardless of herbicide. Ethalfluralin PPI inhibited peanut seedling growth more than equivalent rates of pendimethalin PPI. However, peanut seedling responses to PRE applications of ethalfluralin and pendimethalin were generally the same.

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“…Merkle [16] stated that sporadic injury to runner peanut from trifluralin was due to the failure to properly incorporate the herbicide. No differences were observed in a study examining peanut growth, yield, and grade effects with ethalfluralin, pendimethalin, or trifluralin in two different studies [13,17]. In Florida, ethalfluralin did not cause peanut injury at any rate or application timing [12].…”

Section: Introductionmentioning

confidence: 98%

“…In Georgia, flumioxazin applied PRE was shown to control morninglory spp., prickly sida, and Florida beggarweed [39] while in Texas pitted morninglory [Ipomoea lacunose L.] was controlled greater than 75% with PRE applications of flumioxazin [17].…”

Section: Introductionmentioning

confidence: 99%

Weed Control and Peanut Tolerance with Ethalfluralin-Based Herbicide Systems

Grichar¹,

Dotray

2012

International Journal of Agronomy

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Field studies were conducted from 2007 through 2009 to determine weed efficacy and peanut (Arachis hypogaea L.) response to herbicide systems that included ethalfluralin applied preplant incorporated. Control of devil's claw (Proboscidea louisianica (Mill.) Thellung), yellow nutsedge (Cyperus esculentus L.), Palmer amaranth (Amaranthus palmeri S. Wats.), and puncturevine (Tribulus terrestris L.) was most consistent with ethalfluralin followed by either imazapic or imazethapyr applied postemergence. Peanut stunting was 19% when paraquat alone was applied early-postemergence. Stunting increased to greater than 30% when ethalfluralin applied preplant incorporated was followed by S-metolachlor applied preemergence and paraquat applied earlypostemergence. Stunting (7%) was also observed when ethalfluralin was followed by flumioxazin plus S-metolachlor applied preemergence with lactofen applied mid-postemergence. Ethalfluralin followed by paraquat applied early-postemergence reduced peanut yield when compared to the nontreated check. Ethalfluralin applied preplant incorporated followed by imazapic applied mid-postemergence provided the greatest yield (6220 kg/ha). None of the herbicide treatments reduced peanut grade (sound mature kernels plus sound splits) when compared with the nontreated check.

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Effect of Dinitroaniline Herbicides upon Yield and Grade of Five Runner Cultivars1

Cited by 16 publications

References 4 publications

Comparison Between Diclosulam- and Imazapic-Based Weed Control Systems in Peanut1

Comparison Between Diclosulam- and Imazapic-Based Weed Control Systems in Peanut1

Peanut Seedling Response to Dinitroaniline Herbicides Applied Preplant Incorporated and Preemergence1

Weed Control and Peanut Tolerance with Ethalfluralin-Based Herbicide Systems

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