58 results about "Herbicide safener" patented technology

Compounds of Formula I, and their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation

• • and R^1a, R^1b, R^1c, R^2a, R^2b, R³, R⁴, R⁵, T, U, W, Y and Z are as defined in the disclosure.

Also disclosed are compositions containing the compounds of Formula I and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula I. Also disclosed are mixtures and compositions comprising a herbicidally effective amount of a compound of Formula Iz

wherein J, R^1a, R^1b, R^1c, R^2a, R^2b, R³, R⁴, R⁵, T, U, W, Y and Z are as defined in the disclosure; and an effective amount of another herbicide or herbicide safener. Also disclosed is a method for selectively controlling undesired vegetation in a crop that involves contacting the locus of a crop with an effective amount of a compound of Formula Iz and a effective amount of a safener.

Disclosed is a herbicidal mixture comprising (a) at least one herbicide compound selected from the pyrimidines of Formula 1, including all geometric and stereoisomers, N-oxides, and salts thereof:

wherein

• • R¹ is cyclopropyl, 4-Br-phenyl or 4-Cl-phenyl;
  • X is Cl or Br;
  • R² is H, C₁-C₁₄ alkyl, C₂-C₁₄ alkoxyalkyl, C₃-C₁₄ alkoxyalkoxyalkyl, C₂-C₁₄ hydroxyalkyl or benzyl; and
  • (b) at least one additional herbicide or herbicide safener compound selected from the group consisting of (b1) ACCase inhibitors, (b2) AHAS inhibitors, (b3) photosystem II inhibitors, (b4) photosystem I electron diverters, (b5) PPO inhibitors, (b6) EPSP synthase inhibitors, (b7) GS inhibitors, (b8) VLCFA inhibitors, (b9) auxin mimics, (b10) auxin transport inhibitors, (b11) other herbicides selected from the group consisting of flamprop-M-methyl, flamprop-M-isopropyl, difenzoquat, DSMA, MSMA, bromobutide, flurenol, cinmethylin, cumyluron, dazomet, dymron, methyldymron, etobenzanid, fosamine-ammonium, isoxaflutole, asulam, clomazone, mesotrione, metam, oxaziclomefone, oleic acid, pelargonic acid and pyributicarb, (b12) herbicide safeners selected from the group consisting of benoxacor, 1-bromo-4-[(chloromethyl)sulfonyl]benzene, cloquintocet-mexyl, cyometrinil, dichlormid, 2-(dichloromethyl)-2-methyl-1,3-dioxolane, fenchlorazole-ethyl, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen-ethyl, mefenpyr-diethyl, methoxyphenone, naphthalic anhydride and oxabetrinil, and their salts. Also disclosed is a method for controlling the growth of undesired vegetation comprising contacting the vegetation or its environment with a herbicidally effective amount of a mixture of the invention (e.g., as a composition described herein).

The invention discloses a synthetic method of herbicide safener isoxadifen-ethyl, the isoxadifen-ethyl is prepared by reaction of 1, 1-diphenyl ethylene and ethyl 2-chloro-2-(hydroxyimino)acetate under the effects of an alkali metal compound. The synthetic method is mild in reaction, simple in operation, high in yield, low in pollution, and easy to industrial production.

Aqueous herbicidal capsule suspensions of acetochlor, containing microcapsules of defined size, shell wall composition and thickness which contain acetochlor and reduced levels of herbicide safener are provided. The aqueous herbicidal capsule suspensions of acetochlor provide commercially acceptable weed control and selectivity in cereal.

The invention provides a preparation method of a chiral isoxadifen-ethyl compound. The compound prepared by the method is a single enantiomer. The preparation method is simple, few in byproduct, highin product yield and wide in application prospect. In addition, the invention further provides a herbicide safener. The herbicide safener contains the chiral isoxadifen-ethyl compound serving as an active ingredient, so that application range of herbicide can be expanded effectively.

The invention discloses a herbicide safener composition, belonging to the technical field of pesticides, and particularly relates to a post-emergence herbicide safener composition which is high in efficiency and low in toxicity and is has high safety to wheat. The herbicide safener composition comprises a safener and active components, wherein the active components include at least two acetic acid-lactic acid synthetase inhibitor type herbicidal active materials. The herbicide safener composition disclosed by the invention is safe to reaped wheat and afterreap crops, is easy to degrade in environments and has an obvious synergistic effect; compared with the single dosage, herbicidal activity is better, farmland weeding cost is remarkably lowered, and a weeding spectrum is relatively wide.

The invention relates to an application of a furan coumarin compound, in particular to an application of a furan coumarin compound expressed in the general formula (I) and a composition thereof to protecting crops against the poison of an amide herbicide. The compound can be used for preparing a herbicide safener. The application of the furan coumarin compound has the beneficial effects that the harm of the herbicide to the crops can be reduced, the application scope of the herbicide is enlarged, the new application prospect is provided for the herbicide, the service life is prolonged, the development of new varieties is facilitated, and meanwhile, as the harm to the crops is reduced or eliminated, the yield of the crops is not affected.

Provided herein are 4-amino-6-(halo-substituted-alkyl)-picolinic acids and their derivatives, compositions comprising the acids and their derivatives, and methods of use thereof as herbicides. The compositions can include herbicide safeners, adjuvants, and carriers. Also provided are methods controlling undesirable vegetation in glyphosate tolerant crops, glufosinate tolerant crops, dicamba tolerant crops 2,4-D tolerant crops, ALS tolerant crops, or ACCase tolerant crops.

The invention discloses a wheat field weeding composition, which mainly comprises the active ingredients of carfentrazone-ethyl and weedicide safener at the weight ratio of 10:(0.1-10). According to the weeding composition with good safety, due to the addition of the weedicide safener, the safety of crops can be enhanced, and the occurrence of phytotoxicity accidents can be reduced to protect the benefits of farmers, thus reducing the occurrence of social groupment petitioning events.

The invention relates to the fields of natural product chemistry and pesticide science and in particular to a safe agent and a combination agent for damage of amide herbicides to cereal crops. The safe agent for damage of amide herbicides to cereal crops comprises a jasmonic acid ester compound. By adopting the safe agent, the jasmonic acid ester compound is applied to alleviation of damage of amide herbicides to cereal crops for a first time, crops can be relatively well prevented from damage of the amide herbicides, and a novel direction is made for development of herbicide safe agents.

The invention relates to a fenoxaprop-p-ethyl damage-resistant composition for rice. The composition comprises a herbicide and a safener, wherein the herbicide comprises fenoxaprop-p-ethyl, the safener is a binary combination of fenclorim and lecithin, and the ratio of the herbicide to the safener is (1-10):(1-10). The composition has the effect of resisting fenoxaprop-p-ethyl damage of rice, andthe use effect is improved.

The present invention provides preparation process of new N-dichloroacetyl-1, 3-oxazolidine compound. The preparation process includes the following steps: 1. dissolving 2-methyl-2-amino propanol and aldehyde or ketone of different structure in the molar ratio of 1 to 1-1 to 1.5 in solvent; 2. stirring at 33-38 deg.c, refluxing and separating out water, cooling the reaction system to -10 deg.c, adding acid-binding agent, and dropping dichloroacetyl chloride slowly to maintain the pH value of the reaction system in over 12; 3. washing the organic phase with water to neutrality, drying with anhydrous magnesium sulfate and distilling off solvent; and 4. adding solvent to re-crystallize or column chromatography to separate so as to obtain white crystal. Compared with available technology, the present invention has the advantages of mild reaction cn, short reaction period, less side products and high yield.

The invention relates to new application of an Angelica pubescens Maxim. f. Biserrata Shan et Yuan extract. The extract is obtained by drying, smashing and sieving Angelica pubescens Maxim. f. Biserrata Shan et Yuan, extracting by using an alcohol substance, and concentrating. By using the Angelica pubescens Maxim. f. Biserrata Shan et Yuan extract and a composition thereof for crops, the crops can be protected from the phytotoxicity of a herbicide; the extract can be used for preparing a safe herbicide.

The present invention relates to a method of reducing crop damage by treating the seed of the crop with the safener before sowing. This can be done in addition to the use of crop protection combinations/compositions, in particular herbicide/safener combinations and compositions comprising thereof, which are highly suitable to protect crops from herbicide damage in pre- and post-emergence treatments.

Disclosed are compounds of Formula 1, including N-oxides, and salts thereof,

wherein W is O or NR⁷, n is 0 or 1, and R¹, R², R³, R⁴, R⁵, R⁶, R⁷ and m are as defined in the disclosure.

Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention. Also disclosed are mixtures and compositions comprising a herbicidally effective amount of a compound of Formula 1 and an effective amount of another herbicide or herbicide safener.

The invention discloses a preparation method of furilazole, which comprises the following steps: 1, carrying out a nucleophilic addition reaction on furfural and trimethylsilyl cyanide; 2, reducing a-(2-furan)-a-trimethylsiloxy acetonitrile; 3, carrying out an addition elimination reaction on a-aminomethyl-2-furancarbinol and acetone; and 4, amidating 5-(2-furan)-2,2-dimethyloxazolidine. The preparation method has the advantages of simple process operation, and pureness and high yield of the target product, and provides another approach for the synthesis of like herbicide safeners.

Herbicide-safener compositions are described, comprising active ingredients from the group of the N-(1,2,5-oxadiazol-3-yl)benzamides and safeners. These herbicidal compositions are particularly suitable for use against harmful plants in crops of useful plants.

The present disclosure describes formulations and methods for agricultural production. The formulations comprise an active agricultural compound, a polymer, a dispersant and/or a wetting agent, and water, wherein the active is selected from the group consisting of fungicides, insecticides, nematicides, herbicides, safeners, growth regulators, and combinations thereof. The polymer is a polyelectrolyte comprising hydrophobic and hydrophilic monomers, such as, styrene, methacrylic acid, 2-acrylamido-2-methylpropane sulfonic acid and ethyl acrylate. The formulations described herein have reduced, inhibited and/or mitigated crystallization of the active compounds.

The invention relates to a dichloro-acetyl benzo-oxazine type herbicide safener and a synthetic method thereof, belonging to an organic synthesis technique. The basic structure of the dichloro-acetyl benzo-oxazine type herbicide safener is disclosed in the right formula; in the formula, R is H, halogen or an alkyl substituting radical; The synthetic method comprises the following steps: (1), substituent amino phenol is used as a raw material, a solvent is added, and anhydrous potassium carbonate is used as catalyst; (2), the system is heated up to 70 to 100 DEG C, 1, 2-ethylene dibromide is dropped into the solution, and stirring and circumfluence are carried out for 6 to 8 hours; (3), the mixture is cooled, added with 50mL of water, processed, then extracted by using ethyl acetate and dried by using calcium chloride, distillation is carried out to obtain the ethyl acetate, and a red oily intermediate is obtained by carrying out chromatographic separation on a coarse product by a silica gel column; (4), the solvent is added into the intermediate, the temperature of the system is controlled below 10 to 40 DEG C, an amount of dichloroacetyl chloride is slowly dropped into the mixture, the mixture is stirred for 1 to 2 hours after dropping, distillation is carried out on the mixture to obtain the solvent, and the final product is obtained by a recrystallization method by separation and purification; and the method features easy acquirement of the raw materials, simple operation, low production cost and no environmental pollution.

The invention belongs to the technical field of pesticides, and discloses a weeding composition being safe to wheat and having a significant control effect on sulfonylurea-resistant weeds in the wheatfield. The weeding composition is composed of a weeding active component and a safener, wherein the weeding active component is mesotrione. The mass fraction of the weeding active component mesotrione in the composition is 1-99%, and preferably 10-55%. A weight ratio of the weeding active component to the herbicide mesotrione is 1:(2-10), and preferably 1:(4-8). Different auxiliary materials areadded to prepare a suspension, a dispersible oil suspension, a wettable pulvis, a water dispersible granule, a granule or any pesticide preparation type. The weeding composition safely applied to wheat crops in order to control the sulfonylurea-resistant weeds is not reported, and is domestically initiated. The weeding composition has a thorough control effect on Descurainia Sophia, cleavers, shepherd's purse, Erysimum cheiranthoides, Alopecurus aequalis Sobol., Alopecurus japonicus, Bromus japonicus, wild oats, ryegrass and bluegrass which cannot be well controlled by perennially used sulfonylurea herbicides.