A Novel Sulfonylurea Herbicide for Corn

Murai, Shigeo; Haga, Takahiro; Fujikawa, K.; Sakashita, N.; Kimura, Fumio

doi:10.1021/bk-1991-0443.ch008

Cited by 12 publications

(7 citation statements)

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“…Persistence in alkaline soils can result in injury to sensitive rotational crops such as sugarbeet (16). Rimsulfuron is a new herbicide which provides excel-'lent control of not only annual grasses and broad-leaved weeds but also troublesome perennial grasses in com and potato (Solanum tuberosum L.) (3,10,20). Experimentation in France began in 1988 and it was commercialized for use in com under the trade name TITUS®7 in spring of 1991.…”

Section: Introductionmentioning

confidence: 99%

Activity of Nicosulfuron, Rimsulfuron, and Their Mixture on Field Corn (Zea mays). Soybean (Glycine max), and Seven Weed Species

Mekki

Leroux

1994

Weed technol.

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Seven annual weed species were treated under greenhouse conditions with six rates of either nicosulfuron, rimsulfuron, or a 1:1 mixture (DPX-79406). Herbicide rates in g ai/ha producing 90% dry biomass reduction (GR90) were calculated for each weed species. Accordingly, weeds were classified as very susceptible when GR90≤ 9, susceptible when 9 < GR90 ≤ 18, moderately susceptible when 18 < GR90≤ 27, and tolerant when, GR90> 27. Giant and green foxtails were very susceptible to the three herbicides. Proso millet was very susceptible to rimsulfuron and DPX-79406, and susceptible to nicosulfuron. Wild oat was susceptible to nicosulfuron and DPX-79406, and moderately susceptible to rimsulfuron. Redroot pigweed was very susceptible to nicosulfuron; whereas, it was susceptible to rimsulfuron and DPX-79406. Common ragweed and smooth crabgrass were tolerant to the three herbicides. In a second experiment, we used regression estimate analysis with an additive reference model to evaluate nicosulfuron and rimsulfuron interaction on corn, soybean, common ragweed, and smooth crabgrass. We found these herbicides synergistic on smooth crabgrass, antagonistic on soybean, less than additive on common ragweed, and additive on corn.

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Section: Introductionmentioning

confidence: 99%

Activity of Nicosulfuron, Rimsulfuron, and Their Mixture on Field Corn (Zea mays). Soybean (Glycine max), and Seven Weed Species

Mekki

Leroux

1994

Weed technol.

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“…# 3 AGRRE, and Johnsongrass [Sorghum halepense (L.) Pers.] at rates similar to those required for annual grass weeds, in addition to providing good control or suppression of many broadleaf weeds in com (3,9,11,16,18,28). It has also controlled very well triazineresistant smooth pigweed (kmaranthus hybridus L.) and giant foxtail (Setaria faberii Herrm.)…”

Section: Introductionmentioning

confidence: 99%

Enhanced Activity of Nicosulfuron in Combination with Soil-Applied Insecticides in Corn (Zea mays)

Rahman

James

1993

Weed technol.

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Field experiments were conducted to determine the occurrence and the extent of interaction among four soil-applied organophosphate insecticides and the sulfonylurea herbicide nicosulfuron applied POST to corn. Nicosulfuron was damaging to corn when the crop was planted with terbufos, phorate, or fonofos applied into the open furrow. Terbufos was the most damaging and also caused damage when applied as a 17-cm band prior to or after closing the furrow, with or without incorporation. Phytotoxic symptoms appeared within 3 d of application of nicosulfuron and damage increased as the rate was increased from 53 g ai/ha to 140 g ai/ha. However, despite severe damage of up to 50% recorded in some terbufos combinations, all plants had completely recovered within 4 wk and none of the treatments had any effect on grain yield or crop maturity. No damage resulted from nicosulfuron when corn was planted with the insecticide chlorpyrifos. Efficacy data of nicosulfuron on the main weeds present are also reported.

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“…23,24 Metsulfuronmethyl (1) from the first generation of sulfonylurea herbicides is only active against broadleaf weeds, and the exchange of its phenyl ring by pyridine led to nicosulfuron (11), which is a cornselective herbicide controlling a whole range of mono-and dicotyledonous weeds. 25,26 The replacement of one of the two phenyl rings of experimental insecticide 12 by pyridine, alongside three other small modifications to the molecule, resulted in a 40-fold potency increase against lepidopteran pests and delivered chlorantraniliprole (13), a ryanodine-receptoractivating insecticide. 27,28 Also, in cellulose-synthase-inhibiting fungicide dimethomorph (14), one of the two phenyl groups has been successfully exchanged with a pyridyl ring, leading to the new commercial product pyrimorph (15) (Scheme 2).…”

Section: Replacement Of a Phenyl Ring By A Heterocyclementioning

confidence: 99%

Isosteric Ring Exchange as a Useful Scaffold Hopping Tool in Agrochemistry

Lamberth

2023

J. Agric. Food Chem.

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Replacing one ring in a molecule by a different carba- or heterocycle is an important scaffold hopping manipulation, because biologically active compounds and their analogues, which underwent such a transformation, are often similar in size, shape, and physicochemical properties and, therefore, likely in their potency as well. This review will demonstrate, how isosteric ring exchange led to the discovery of highly active agrochemicals and which ring interchanges have proven to be most successful.

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A Novel Sulfonylurea Herbicide for Corn

Cited by 12 publications

References 0 publications

Activity of Nicosulfuron, Rimsulfuron, and Their Mixture on Field Corn (Zea mays). Soybean (Glycine max), and Seven Weed Species

Activity of Nicosulfuron, Rimsulfuron, and Their Mixture on Field Corn (Zea mays). Soybean (Glycine max), and Seven Weed Species

Enhanced Activity of Nicosulfuron in Combination with Soil-Applied Insecticides in Corn (Zea mays)

Isosteric Ring Exchange as a Useful Scaffold Hopping Tool in Agrochemistry

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