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AssigneeIshihara Sangyo Kaisha, Ltd.
InventorsRyu Yamada, Hiroyuki Okamoto, Takashi Terada
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At present, various herbicidal compositions have been developed and use, but there are a variety of types of weeds to be controlled, and their development lasts for a long period of time. Thus, a herbicidal composition having a broad herbicidal spectrum, having high activity and having a long-lasting effect has been desired. The present invention relates to a herbicidal composition comprising (a) nicosulfuron or its salt and (b) S-metolachlor or its salt. According to the present invention, a herbicidal composition having a broad herbicidal spectrum, having high activity and having a long-lasting effect can be provided.
A herbicidal composition comprising, as active ingredients, (a) nicosulfuron or its salt, (b) S-metolachlor or its salt, and (c) bicyclopyrone or its salt.
A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of (a) nicosulfuron or its salt, a herbicidally effective amount of (b) S-metolachlor or its salt, and a herbicidally effective amount of (c) bicyclopyrone or its salt to the undesired plants or to a place where they grow.
Dependencies are inferred from the claim text.
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Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<: containing the group >N—CO—N< directly attached to at least one heterocyclic ring;…
Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to…:…
Containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof: the nitrogen atom being directly attached to an…
Containing a sulfur-to-oxygen double bond: sulfones; Sulfoxides
About 7 years 8 months of term left · ends 26 Jun 2034 (estimated)
The present invention relates to a herbicidal composition comprising (a) nicosulfuron or its salt (hereinafter referred to as compound A) and (b) S-metolachlor or its salt (hereinafter referred to as compound B). The present invention further relates to a herbicidal composition which further contains (c) at least one member selected from the group consisting of terbuthylazine, mesotrione, prosulfuron, bicyclopyrone and their salts (hereinafter referred to as compound C).
Patent Document 1 discloses a herbicidal composition comprising a pyridinesulfonamide compound or its salt and a certain active ingredient. Further, Patent Document 2 discloses a herbicidal composition comprising a chloroacetanilide compound of Formula A and at least one active ingredient selected from the group of substances having various structures. However, Patent Documents 1 and 2 failed to specifically disclose a specific combination of compound A and compound B and synergistic effects obtainable when they are combined.
Patent Document 1: JP-A-2-76803
As for compound A, nicosulfuron (common name) is 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-N,N-dimethylnicotinamide.
As for compound B, S-metolachlor (common name) is a mixture of (aRS,1S)-2-chloro-6′-ethyl-N-(2-methoxy-1-methylethyl)aceto-o-toluidide (80 to 100%) and (aRS,1R)-2-chloro-6′-ethyl-N-(2-methoxy-1-methylethyl)aceto-o-toluidide (20 to 0%).
As for compound C, terbuthylazine (common name) is N2-tert-butyl-6-chloro-N4-ethyl-1,3,5-triazine-2,4-diamine, and mesotrione (common name) is 2-(4-mesyl-2-nitrobenzoyl)cyclohexane-1,3-dione, and prosulfuron (common name) is 1-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-3-[2-(3,3,3-trifluoropropyl)phenylsulfonyl]urea, and bicyclopyrone (common name) is 4-hydroxy-3-{2-[(2-methoxyethoxy)methyl]-6-(trifluoromethyl)-3-pyridylcarbonyl}bicyclo[3.2.1]oct-3-en-2-one.