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
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
  • A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl

Definitions

• the present invention relates to new herbicidal compositions which can be used in particular for treating cotton crops.
• An object of the invention is to provide selective herbicidal compositions with respect to cotton crops.
• An object of the invention is to allow cotton to be obtained with a good yield per hectare of crop. Another object of the invention is to provide herbicidal compositions having very good activity against weeds even at relatively low doses.
• Another object of the invention is to provide herbicidal compositions having good persistence making it possible to obtain a prolonged effect on weeds.
• Another object of the invention is to provide herbicidal compositions having good regularity of action.
• R is an isopropyl (-CH (CH 3 ) 2 ) or propargyl (-CH2-C ⁇ CH) radical and R 'is a hydrogen atom or an ethyl radical.
• compositions are most often used such that the weight ratio of compound of formula (I) relative to the compound of formula (II) is between 0.1 and 0.8, preferably between 0 , 25 and 0.7.
• compositions according to the invention are particularly suitable for the treatment of cotton crops, they can also be used for other crops, in particular rice.
• the dose of active materials that is to say of all of the compounds of formula (I) and (II) to be used can vary from 0.5 at 5 kg / ha depending on the compounds used, the type of crop and the type of soil, preferably this rate is between 1 and 3.5 kg / ha
• compositions according to the invention when they are stored, transported or applied generally comprise 0.5 to 95% by weight of active materials and, in addition, a support and / or surfactant
• support within the meaning of the present description designates a material, organic or mineral, natural or synthetic, with which the active material is associated to facilitate its application on the plant, on the seeds or on the ground, or its transport or its handling.
• the support can be solid (clay, natural or synthetic silicates, resins, waxes, solid fertilizers) or fluid (water, alcohols, ketones, petroleum fractions, chlorinated hydrocarbons, liquefied gases).
• the surfactant may be an emulsifying, dispersing or wetting agent, each of which may be ionic or nonionic. Mention may be made, for example, of salts of polyacrylic acids, sulfonic lignins, condensates of ethylene oxide on fatty alcohols, fatty acids or fatty amino acids.
• compositions according to the invention can be prepared in the form of wettable powders, dusting powders, granules, solutions, emulsifiable concentrates, emulsions, suspension concentrates and aerosols.
• Preferred forms are wettable powders and aqueous suspensions.
• Wettable powders are usually prepared so that they contain from 20 to 95% by weight of active ingredient and they usually contain, in addition to a solid support, from 0 to 5% by weight of wetting agent, from 3 to 10% by weight of one or more stabilizers and / or other additives, such as penetration agents, adhesives or anti-caking agents, glues, etc.
• a powder wettable here is the composition of a powder wettable:
• the granules intended to be placed on the ground are usually prepared so that they have dimensions of between 0.1 and 2 mm and they can be manufactured by agglomeration or impregnation.
• granules contain 0.5 to 25% active ingredient and 0 to 10% by weight of additives such as stabilizers, slow release modifiers, binders and solvents.
• additives such as stabilizers, slow release modifiers, binders and solvents.
• the suspended concentrates which can be applied by spraying, are prepared in such a way as to obtain a stable fluid product which does not deposit and they usually contain from 10 to 75% by weight of active material,
• surfactant agenty from 0.1 to 10% pseudoplastics or by weight of agents / thixotropes, from 0 to 10% by weight of suitable additives, such as defoamers, corrosion inhibitors, stabilizers, penetrating agents and adhesives, and as a carrier, water or an organic liquid in which the active ingredient is substantially insoluble: some organic solids or mineral salts may be dissolved in the support to prevent sedimentation or as antifreeze for water.
• Aqueous dispersions and emulsions for example compositions obtained by diluting with water a wettable powder or a concentrate in suspension according to the invention are included within the general scope of the present invention.
• the emulsions can be of the water-in-oil type or of the oil-in-water type and they can have a thick consistency like that of a "mayonnaise".
• the compositions according to the invention may also contain other ingredients, for example, protective colloids, adhesives or thickeners, thixotropic agents, stabilizers or sequestrants as well as other known active materials with pesticidal properties, in particular insecticides or fungicides.
• an emulsifiable concentrate containing 250 g / 1 of compound No. 1, 80 g / 1 of emulsifier, 240 g / 1 of cyclohexanone, the rest of the concentrate being xylene.
• a wettable powder containing 80% by weight of compound No. 2 as well as about 10% of mineral fillers and 10% of a mixture of a wetting agent and a dispersing agent.
• a treatment is carried out after sowing, in pre-emergence, with a composition as described above, the proportions of this composition are such that one spreads:

Landscapes

• 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)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9237160

Family Applications (1)

Country Status (6)

Citations (3)

Family Cites Families (1)

• 1980
  • 1980-02-05 BR BR8009033A patent/BR8009033A/pt unknown
  • 1980-02-05 WO PCT/FR1980/000016 patent/WO1981002240A1/fr not_active Ceased
• 1981
  • 1981-01-20 TR TR21062A patent/TR21062A/xx unknown
  • 1981-02-03 AR AR284186A patent/AR227173A1/es active
  • 1981-02-04 FR FR8102291A patent/FR2474820A1/fr active Granted
  • 1981-02-04 EG EG52/81A patent/EG14686A/xx active

Patent Citations (3)

Non-Patent Citations (1)

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