Weed control efficacy of a novel herbicide, pyroxasulfone

Yamaji, Yoshihiro; Honda, Hisashi; Kobayashi, Masanori; Hanai, Ryo; Inoue, Jun

doi:10.1584/jpestics.d14-025

Cited by 33 publications

(42 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pyroxasulfone may be used for selective weed control in various field crops including corn (Zea mays L.), soybean [Glycine max (L.) Merr. ], cotton (Gossypium hirsutum L.) and wheat (Triticum aestivum L.); selectivity is conferred via differential sensitivities of VLCFA elongases in tolerant and susceptible species (Tanetani et al 2009;Yamaji et al 2014). Applied pre-emergence or early-postemergence at up to 230 g a.i.…”

mentioning

confidence: 99%

Weed control in soybean using pyroxasulfone and sulfentrazone

2015

View full text Add to dashboard Cite

. 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.

show abstract

mentioning

confidence: 99%

Weed control in soybean using pyroxasulfone and sulfentrazone

2015

View full text Add to dashboard Cite

show abstract

“…6). 18) 3) Pyroxasulfone shows good selectivity for corn, soybeans, wheat, turf, cotton, potato and onion, and we intend to extend its use to other crops in future. …”

Section: Featuresmentioning

confidence: 99%

“…In fields of genetically modified crops, pyroxasulfone controlled weeds that were resistant to non-selective herbicides. [1][2][3][4] Pyroxasulfone has been classified in the Herbicide Resistance Action Committee Group K3, 5) and inhibits the biosynthesis of very-long-chain fatty acids in plants. 2,6) In this paper, we describe the discovery, physicochemical properties, biological activity and development status of pyroxasulfone.…”

Section: Introductionmentioning

confidence: 99%

Development of the novel pre-emergence herbicide pyroxasulfone

Nakatani¹,

Yamaji

Honda

et al. 2016

J. Pestic. Sci.

Self Cite

View full text Add to dashboard Cite

Pyroxasulfone, which was discovered and developed by K-I Chemical Research Institute Co., Ltd.; Kumiai Chemical Industry Co., Ltd.; and Ihara Chemical Industry Co., Ltd., is a novel pre-emergence herbicide for wheat, corn, and soybean. Pyroxasulfone inhibits the biosynthesis of very-long-chain fatty acids in plants and has shown excellent herbicidal activity against grass and broadleaf weeds at lower application rates compared with other commercial herbicides. This pesticide has been registered in Japan, Australia, the USA, Canada, Saudi Arabia, and South Africa, and we sell pyroxasulfone products through domestic partner companies in each of these countries. With its high efficacy and relatively low application rates, we believe that pyroxasulfone will contribute to efficient global food production in the future.

show abstract

“…1) has been reported to exhibit excellent herbicidal activity against grass weeds and small-seeded broadleaf weeds with sufficient crop safety for corn, soybeans and wheat on pre-emergence application. 1) In this paper, we describe the development of this herbicide, with a focus on structural optimization to enhance its herbicidal activities and improve its physicochemical properties.…”

Section: -{[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1hmentioning

confidence: 99%

Synthesis and herbicidal activity of 3-{[(hetero)aryl]methanesulfonyl}-4,5-dihydro-1,2-oxazole derivative; Discovery of the novel pre-emergence herbicide pyroxasulfone

Nakatani¹,

Ito

Yoshimura

et al. 2016

Journal of Pesticide Science

View full text Add to dashboard Cite

Thiocarbamate sulfoxides, which are the active forms of thiocarbamate herbicides, are quickly conjugated with glutathione and decomposed in soil. To achieve more potent and stable herbicidal activity, we previously developed a 5-{[(2,6-difluorophenyl)-methoxy]methyl}-5-methyl derivative, which has a 4,5-dihydro-1,2-oxazole ring in place of the thiocarbamate to prevent conjugation and decomposition. Although the derivative showed pre-emergence herbicidal activity under flooded conditions, it displayed no herbicidal activity under upland conditions. In contrast, a 5-(methoxymethyl)-5-methyl derivative showed preemergence herbicidal activity against grass weeds under upland conditions. The aim of this study was to obtain a more potent compound with improved physicochemical properties for use as a pre-emergence upland herbicide via the structural optimization of a 3-{[(hetero)aryl]methanesulfonyl}-4,5-dihydro-1,2-oxazole as the core structure. In this way, we have developed the pre-emergence herbicide 3-{[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methanesulfonyl}-5,5-dimethyl-4,5-dihydro-1,2-oxazole, which has been named "pyroxasulfone. " This novel compound displayed excellent herbicidal activity against grass and broadleaf weeds under upland conditions with no phytotoxicity against crops.

show abstract

Weed control efficacy of a novel herbicide, pyroxasulfone

Cited by 33 publications

References 7 publications

Weed control in soybean using pyroxasulfone and sulfentrazone

Weed control in soybean using pyroxasulfone and sulfentrazone

Development of the novel pre-emergence herbicide pyroxasulfone

Synthesis and herbicidal activity of 3-{[(hetero)aryl]methanesulfonyl}-4,5-dihydro-1,2-oxazole derivative; Discovery of the novel pre-emergence herbicide pyroxasulfone

Contact Info

Product

Resources

About