Tank Mixing Pendimethalin with Pyroxasulfone and Chloroacetamide Herbicides Enhances In-Season Residual Weed Control in Corn

Jha, Prashant; Kumar, Vipan; Garcia, Josefina; Reichard, Nicholas

doi:10.1614/wt-d-14-00095.1

Cited by 14 publications

(18 citation statements)

References 26 publications

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“…Dimethenamid-P alone and S-metolachlor alone were the least effective treatments for kochia control in safflower across all evaluation dates (<20% control). Similarly, in a study conducted in corn, the end-season kochia control with dimethenamid-P or acetochlor (another chloroacetamide herbicide) did not exceed 32%; however, the addition of pendimethalin to acetochlor significantly improved kochia control [14].…”

Section: Kochia Controlmentioning

confidence: 89%

See 1 more Smart Citation

Evaluation of Preemergence Herbicides for Crop Safety and Weed Control in Safflower

Jha¹,

Kumar²,

Lim³

et al. 2017

AJPS

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Weed management in safflower (Carthamus tinctorious L.) is a major challenge for growers due to very limited herbicide options available, particularly for broadleaf weed control. Field experiments were conducted at the Montana State University Southern Agricultural Research Center (MSU-SARC) near Huntley, MT in 2015 and 2016 to evaluate preemergence (PRE) soil-residual herbicides for crop safety and season-long broadleaf weed control in safflower. Among all herbicide programs tested, only sulfentrazone (105 g•ai•ha −1) alone or with pendimethalin (1064 g•ai•ha −1) caused 4% to 12% early-season visible injury to safflower, although the injury was not evident beyond 30 DAT. Sulfentrazone alone or with pendimethalin and pyroxasulfone (59 g•ai•ha −1) with pendimethalin had a season-long residual activity on kochia [Kochia scoparia (L.) Schrad] and Russian-thistle (Salsola tragus L), with 89% to 99% control at 60 DAT, and up to 98% reduction in weed density compared with dimethenamid-P (213 g•ai•ha −1) and S-metolachlor (433 g•ai•ha −1) at 65 DAT. Pyroxasulfone (59 or 118 g•ai•ha −1) alone or dimethenamid-P with pendimethalin provided a moderate to good control (65% to 79% at 60 DAT) of kochia and Russian-thistle. However, the end-season control of kochia or Russian-thistle was inadequate (<50% control) with pendimethalin, dimethenamid-P, or S-metolachlor alone program. Safflower grain yield with sulfentrazone alone or with pendimethalin, pyroxasulfone alone or with pendimethalin, and dimethenamid-P with pendimethalin averaged 3559 kg•ha −1 , which was 195% higher compared with the nontreated check. In conclusion, sulfentrazone and pyroxasulfone or dimethenamid-P in combination with pendimethalin will be effective PRE herbicide programs for kochia and Russian-thistle control in safflower.

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Section: Kochia Controlmentioning

confidence: 89%

“…Among all PRE herbicide treatments, there was a greater decline in kochia control with pyroxasulfone alone (low or high rate) or pendimethalin alone [14]. Dimethenamid-P alone and S-metolachlor alone were the least effective treatments for kochia control in safflower across all evaluation dates (<20% control).…”

Section: Kochia Controlmentioning

confidence: 92%

Evaluation of Preemergence Herbicides for Crop Safety and Weed Control in Safflower

Jha¹,

Kumar²,

Lim³

et al. 2017

AJPS

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“…As such, when tank-mixed, common lambsquarters control was increased when sulfentrazone was added to pyroxasulfone, but there was no benefit of adding pyroxasulfone to sulfentrazone. Similarly, Jha et al (2015) found that application of pyroxasulfone did not provide acceptable control of common lambsquarters in corn. Mahoney et al (2014a) also reported common lambsquarters control as low as 19% with pyroxasulfone at 89 g a.i.…”

mentioning

confidence: 99%

“…ha (1 sulfentrazone was sufficient to provide soybean yields that were 90% of the weed-free control. Jha et al (2015) evaluated pyroxasulfone and chloroacetamide herbicide combinations and found that corn yields were consistently higher for tankmixed treatments relative to individual application.…”

mentioning

confidence: 99%

Weed control in soybean using pyroxasulfone and sulfentrazone

2015

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. 2015. Weed control in soybean using pyroxasulfone and sulfentrazone. Can. J. Plant Sci. 95: 1199Á1204. Pyroxasulfone and sulfentrazone are new herbicides currently being evaluated for weed control in soybean [Glycine max (L.) Merr.] in Ontario, Canada. Seven experiments were conducted over a 3-yr period (2011 to 2013) at Ridgetown and Exeter, Ontario, to evaluate weed management using pyroxasulfone, sulfentrazone and their tank-mixes relative to the industry standard, imazethapyr plus metribuzin. Tank-mixing pyroxasulfone and sulfentrazone provided up to 97, 46, 60, 100 and 71% control of common lambsquarters (Chenopodium album L.), common ragweed (Ambrosia artemisiifolia L.), green foxtail [Setaria viridis (L.) Beauv.], Powell amaranth [Amaranthus powellii (S.) Wats.] and velvetleaf (Abutilon theophrasti Medic.), respectively, at 2 wk after treatment. Control with pyroxasulfone and sulfentrazone was improved when tank-mixed, relative to application of each herbicide separately. Although control was variable across weed species, no difference in control was identified between pyroxasulfone plus sulfentrazone and imazethapyr plus metribuzin. Soybean yield was up to 2.7, 2.4 and 2.9 t ha(1 for pyroxasulfone, sulfentrazone and pyroxasulfone plus sulfentrazone application, yet imazethapyr plus metribuzin provided the highest yield (3.3 t ha(1 ). This research demonstrates that pyroxasulfone plus sulfentrazone may be used as a valuable weed control option in soybean; however, weed community composition may limit herbicidal utility.

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“…In other studies, Jha et al [21] (Table 5). Wild mustard density and aboveground dry weight were generally similar to the weedy plots for both crops, except in soybean in which density was reduced 83% with pyroxasulfone ( Table 5).…”

Section: Redroot Pigweedmentioning

confidence: 80%

Weed Control in Corn and Soybean with Group 15 (VLCFA Inhibitor) Herbicides Applied Preemergence

Soltani

Brown

Sikkema

2019

International Journal of Agronomy

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Limited information exists on the efficacy of pethoxamid for annual grass and broadleaf control in corn and soybean in Ontario. A total of 10 field experiments (5 with corn and 5 with soybean) were conducted during 2015 to 2017 in Ontario, Canada, to compare the weed control efficacy of dimethenamid-P at 544 g·ai·ha−1, pethoxamid at 840 g·ai·ha−1, pyroxasulfone at 100 g·ai·ha−1, and S-metolachlor at 1050 g·ai·ha−1 applied preemergence (PRE). Reduced weed interference with pyroxasulfone and dimethenamid-P resulted in corn yield that was similar to the weed-free control; however, weed interference with pethoxamid and S-metolachlor reduced corn yield 28 and 33%, respectively. Reduced weed interference with pyroxasulfone resulted in soybean yield that was similar to the weed-free control; however, weed interference with pethoxamid, dimethenamid-P, and S-metolachlor reduced soybean yield 27, 27, and 30%, respectively. At 4 and 8 weeks after application (WAA), all VLCFA inhibitor herbicides (Group 15) provided excellent redroot pigweed control (90 to 99%) in corn. There were no differences in common ragweed control, density, and dry weight among the VLCFA inhibitor herbicide evaluated; pyroxasulfone provided highest numeric common ragweed control and lowest numeric density and dry weight. At 4 and 8 WAA, pyroxasulfone provided the best common lambsquarters and wild mustard control and lowest numeric density and dry weight in corn and soybean. At 8 WAA, the VLCFA inhibitor herbicides controlled green foxtail 91 to 96% in corn; dimethenamid-P provided better control of green foxtail than pethoxamid in soybean. There were no differences in barnyard grass control among the VLCFA inhibitor herbicides evaluated.

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Tank Mixing Pendimethalin with Pyroxasulfone and Chloroacetamide Herbicides Enhances In-Season Residual Weed Control in Corn

Cited by 14 publications

References 26 publications

Evaluation of Preemergence Herbicides for Crop Safety and Weed Control in Safflower

Evaluation of Preemergence Herbicides for Crop Safety and Weed Control in Safflower

Weed control in soybean using pyroxasulfone and sulfentrazone

Weed Control in Corn and Soybean with Group 15 (VLCFA Inhibitor) Herbicides Applied Preemergence

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