Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
  • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
  • A01N41/10—Sulfones; Sulfoxides

Definitions

• Propyrisulfuron is a well-known pyrimidinyl sulfonylurea herbicide. It was developed by Sumitomo Chemical in Japan. It is mainly used to prevent and control grass weeds, for example barnyard grass, and broadleaf weeds, and is used extensively in paddy fields. Even though the dosage of propyrisulfuron required for treatment is low, propyrisulfuron is highly effective in preventing and controlling some known weeds which exhibit resistance to sulfonylurea herbicides.
• penoxsulam 3- (2, 2-difluoroethoxy) -N- (5, 8-dimethoxy- [1, 2, 4] triazolo [1, 5-C] pyrimidine-2-yl) - ⁇ , ⁇ , ⁇ -benzotrifluoride-2-sulfonamide and its structure is represented by the formula:
• the above formulations may be prepared using existing methods which are known in the art and include mixing the active components with other components, such as one or more filling agents, one or more surfactants, one or more dispersants, and one or more carriers.
• the components (A) and (B) may be applied in a range of weight ratios. Suitable weight ratios are as indicated hereinbefore.
• the weight ratio of component (A) to component (B) may range from about 100:1 to about 1:100.
• the weight ratio of component (A) to component (B) as applied ranges from about 50:1 to about 1:50, more preferably from about 25:1 to about 1:25, still more preferably from about 10:1 to about 1:10, more preferably still from about 5:1 to about 1:5.
• penoxsulam may be varied within a wide range of rates.
• a typical application rate is from 1 to 5000 g/ha.
• penoxsulam exhibits a wide spectrum of activity in the control of unwanted plants.
• the present invention finds particular use in the protection of rice crops, in particular in paddy fields.
• the components (A) and (B) propyrisulfuron and penoxsulam, can be applied to the water and will be absorbed through the soil, buds and roots of the target plants.
• the components (A) and (B) , propyrisulfuron and penoxsulam may also be applied in fruit plantations (plantation plants) , green lands, lawns and scenic areas, in partiuclar pasture.
• the components (A) and (B) , propyrisulfuron and penoxsulam may also be applied in non-crop areas, such as residential or industrial areas.
• the components (A) and (B) , propyrisulfuron and penoxsulam are especially effective when applied to rice crops.
• the herbicidal composition and method of the present invention are particularly advantageous to selectively prevent and control harmful plants in rice crops.
• the rice crops mentioned above include all the forms of rice crops planted in diversified conditions, such as cultivation in upland fields, dry land or paddy fields, while the irrigation of the rice crop may be natural (rainfall) and/or artificial (sprinkling, flooding) .
• the rice crop may be conventional cultivated seeds, hybrid seeds or seeds having resistance or at least tolerance, obtained through mutation or gene transfer, which may be derived from indica or japonica or their hybrid rice.
• the components (A) and (B) , propyrisulfuron and penoxsulam may be applied in a single application, either together or separately, or in multiple sequential applications.
• the components (A) and (B) , propyrisulfuron and penoxsulam may be applied as a dressing for seeds first prior to sowing/planting, and/or applied before and/or after emergence of the target plants and/or in one or more of the earlier, medium or later phase of the plant emergence.
• the components (A) and (B) may be employed with other agrochemically active compounds to prevent and control undesirable plants, such as applied to prevent and control weeds or undesirable crop plants.
• Suitable safeners include benoxacor, fenclorim, dichlormid, mefenpyr (-diethyl) ) and isoxadifen (-ethyl) ) .
• a composition comprising a safener in combination with components (A) and (B) , propyrisulfuron and penoxsulam, is able to effectively protect useful plants (other than weeds) against phytotoxicity of the active herbicides.
• the wettable powder was prepared by crushing and grinding a mixture of the above components.
• a suspoemulsion comprising 2%propyrisulfuron and 3%penoxsulam was prepared from the following components:
• a mixture consisting of 60%propyrisulfuron, 20%penoxsulam and 20%benoxacor was prepared from the following components:
• the peat pots were kept in the greenhouse at an optimum condition.
• E the percentage of estimated activity when compounds A and B are empolyed together at an application rate of m g/ha and n g/ha;
• the application of the combination of propyrisulfuron and penoxsulam has a wider herbicidal spectrum than either active compound, which can be used for the comprehensive control of a range of weeds.
• Use of the combination of active ingredients provides control of herbicide resistant weeds and reduces the development of resistance in the target weeds.

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• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)

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Citations (6)

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• 2015
  • 2015-01-19 GB GB1500872.5A patent/GB2534230B/en active Active
  • 2015-06-25 CN CN201510357936.4A patent/CN106172457A/zh active Pending
  • 2015-08-18 WO PCT/CN2015/087348 patent/WO2016115883A1/en active Application Filing
  • 2015-11-25 TW TW104139073A patent/TWI677286B/zh active
• 2017
  • 2017-07-14 PH PH12017501291A patent/PH12017501291B1/en unknown
  • 2017-08-09 CO CONC2017/0008049A patent/CO2017008049A2/es unknown

Patent Citations (6)

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