356 results about "Cyhalofop-butyl" patented technology

The invention relates to a herbicide composition, containing sulfonylurea or salt thereof, pyridine and cyhalofop-butyl as active ingredients with the weight ratio of 0.1 to 5: 0.1 to 10: 0.1 to 10. Compared with herbicides with single dose, the weed control effect of the herbicide composition of the invention is obviously improved, thereby reducing the using dosage, reducing the influence degreefor the environment while reducing the pesticide cost, simultaneously enlarging weed control spectrum, and having good control efficiency for Gramineae and broadleaf weeds in rice paddy fields.

The invention discloses a weeding composition for a paddyfield. The weeding composition is prepared by combining a sodium sulcotrione weedicide as an active ingredient and any one or more of a cyhalofop-butyl weedicide, a bensulfuron methyl weedicide, a pyrazosulfuron-ethyl weedicide, a quinclorac weedicide, a mefenacet weedicide, a bispyribac-sodium weedicide or a penoxsulam weedicide; and the weight ratio of two materials is 1:40-70:1. The composition can be made into oil deflocculant, missible oil, wettable powder, water dispersible granule and the like according to a well-known method. The weeding composition has the characteristics of high-efficient weeding effect, wide weed spectrum, little use amount, low residue, safety to crop, low cost and good prevention and control effect on broadleaf weed and grassy weed; and the weeding composition is applied for one time and can basically control the harm of weeds of the paddyfield in whole season.

The present invention provides a comprehensive herbicide for paddy fields, which includes component A and component B, wherein component A is mesotrione, and one or more of component A and component B Item compound, used for weeding in the field; component B is alachlor, metolachlor, propachlor, acetochlor, pretilachlor, butachlor, mefenacet, quinclorac , Cyhalofop-methyl, pendimethalin, saponin, bispyribac, saflufenacil, cyclopyrafen, pyrifluben. After the above scheme is adopted in the present invention, the composition of component A and component B has a synergistic effect, and has a good control effect on both grass weeds in paddy fields and broad-leaved and sedge weeds , and the residual effect period is short, does not affect the growth of the next crop, and is friendly to the environment.

The invention discloses a pesticide compound containing penoxsulam and cyhalofop-butyl, and the application thereof; the compound comprises commonly used additive, penoxsulam and cyhalofop-butyl; the weight part ratio of the penoxsulam to the cyhalofop-butyl is 1:1 to 1:20; and the weight percentage of the total weight of the penoxsulam and the cyhalofop-butyl in the pesticide compound is 5 to 80percent. The invention is used for preventing and removing annual grassy weeds in a paddy field. The prevention effect of the invention has significant synergic or adding effect than the single dose,and the invention reduces the used dose of the pesticide, reduces the medication cost, prolongs the service life of the preparation and reduces the adverse impact of the pesticide on the ecological environment.

The invention discloses a synergic herbicide comprising effective constituents and auxiliary materials, the effective constituents include mixture of bispyribac sodium and cyhalofop-butyl, wherein the percentages by weight of the constituents include, bispyribac sodium 1-45%, cyhalofop-butyl 1-45%. The rice field herbicide has low cost.

The invention belongs to the field of agricultural herbicides, and particularly discloses a paddy field herbicide mixture. The paddy field herbicide mixture is characterized in that: the active components of the paddy field herbicide mixture include 0.5 to 90 percent of component A, 0 to 90 percent of component B and 0 to 90 percent of component C in part by weight, wherein the component A is clomazone, the component B is cyhalofop butyl ester or pfenoxaprop-ethyl, and the component C is one of bensulfuron-methyl, pyrazosulfuron-ethyl and carfentrazone-ethyl. The paddy field herbicide mixture has a remarkable synergistic effect and the effect of increasing the weed-killing speed, prolongs the persistent time, achieves a prevention and elimination effect on a variety of gramineous weeds and latifolious weeds in paddy fields, and is low in toxicity, the weed control spectrum is broadened, and the dosage is remarkably reduced.

The invention relates to weed control foliar herbicide compositions in a paddy field, which are three foliar herbicide compositions for eliminating weeds in the paddy field. The three foliar herbicide compositions are the composition of mesotrione and metamifop, the composition of mesotrione and cyhalofop-butyl and the composition of mesotrione and penoxsulam respectively. The single use of the existing herbicide in the paddy field has the limited weed-killing spectrum and can not control all the weeds in the paddy field, and a complex product has poor safety or a narrow using cycle or resistance to the weeds in a water field, thereby limiting the popularization and the applications of the complex product. The three herbicide compositions provided by the invention can overcome the defects and control all the weeds in the paddy field; furthermore, the three herbicide compositions have broader using cycle, no resistance to the weeds in the water field and good safety to paddy rice and succeeding crops.

The invention relates to a herbicide composition, which contains the following active ingredients in part by weight: 0.5 to 95 parts of cyhalofop-butyl and 0.5 to 95 parts of metamifop. The invention also relates to application of the herbicide composition in preventing and controlling annual and perennial broadleaf weeds and gramineous weeds of paddy fields. The weeding effect of the herbicide composition is remarkably improved compared with a single agent; and the herbicide composition shows extremely good synergistic effect, reduces the consumption of the agents, reduces the influence on the environment at the same time of reducing the medicament cost of peasants, meanwhile, enlarges the weeding spectrum, and can effectively delay the occurrence and development of single agent resistance.

The invention provides a cyhalofop-butyl-containing weed oil suspension composition, which comprises the following components: 1 to 15 percent of cyhalofop-butyl, 10 to 30 percent of quinclorac, 1 to 10 percent of emulsifying agent, 2 to 8 percent of wetting dispersing agent, 0.1 to 5 percent of suspension stabilizer, 0 to 5 percent of antifreezing agent, 0 to 0.2 percent of organosilicon defoaming agent and the balance of vegetable oil. The cyhalofop-butyl-containing weed oil suspension composition has the obvious synergistic effect, and the prevention and control effect on weed caper euphorbia seed in a paddy field, such as cockspur grass and the like, is superior to that of a single-dose medicament of the cyhalofop-buty and the quinclorac. The weed oil suspension composition improves the prevention and control effect, enlarges weed control spectra, retards weed resistance and reduces application amount and application cost, and is safe for crops.

The invention relates to a herbicide composition containing cyhalofop-butyl and amides. The herbicide composition is mainly characterized by comprising the following materials in percentage by weight: 1 to 40 percent of cyhalofop-butyl serving as an active ingredient A, 5 to 50 percent of active ingredient B, auxiliary agents and other excipients, wherein the active ingredient B is selected from alachlor, acetochlor, butachlor, mefenacet, metolachlor and propisochlor; and the herbicide composition is prepared into wettable powder, suspension, water emulsion or microemulsion. The herbicide composition is used for preventing and controlling annual gramineous weeds in paddy fields.

The invention belongs to the field of pesticides, and relates to a mixed herbicide composition containing bispyribac-sodium and cyhalofop-butyl. The herbicide composition adopts the bispyribac-sodium and the cyhalofop-butyl as main active components, the weight ratio of the bispyribac-sodium and the cyhalofop-butyl is 1 to 99:1 to 99, and the herbicide composition is mainly applied to postemergence weeding in paddy fields, and particularly can prevent and get rid of annual gramineous weeds, broadleaf weeds and cyperaceous weeds in paddy fields. Compared with single agents, the herbicide composition delays the resistance of weeds under the premise that the pesticide effect is enhanced, has a broad weeding spectrum and long persistence period and is safe for rice and next-stubble crops.

The invention relates to a preparation method of cyhalofop-butyl. The method comprises the following steps: by using (R)-2-(4-hydroxyphenoxy)propionic acid and 3,4-difluorobenzonitrile as raw materials and an inorganic alkali as an acid-binding agent, adding an organic alkali and a phase-transfer catalyst, carrying out etherification reaction under milder conditions within a short time to generate an intermediate (R)-2-[4-(2-fluoro-4-cyano)-phenoxy]-propionic acid, and carrying out esterification reaction for dehydration, wherein the total yield of the two reactions can reach 94% or above, and the optical purity is greater than 99%. The method lowers the etherification reaction temperature, shortens the etherification reaction time, enhances the reaction selectivity, completely maintains the chirality, and increases the product yield, thereby saving the energy consumption and lowering the cost. Besides, in the esterification reaction, the used dehydration solvent can lower the byproduct content, thereby omitting the refinement operation of the product, reducing the discharge amount of three wastes, and being beneficial to environmental protection.

The invention relates to a fluroxypyr.cyhalofop-butyl compound weedicide and belongs to the technical field of pesticide. The aim of the invention is to provide the fluroxypyr.cyhalofop-butyl compound weedicide which can prevent and remove both grassy weed and broadleaf weed of a paddy field, has no influence on succession crop, is environment-friendly and has economic price. The fluroxypyr.cyhalofop-butyl compound weedicide comprises the following main technical points that: the fluroxypyr.cyhalofop-butyl compound weedicide is prepared from raw materials and auxiliary materials in percentage by mass: 15 to 60 percent of fluroxypyr, 5 to 20 percent of cyhalofop-butyl, 2 to 15 percent of cosolvent, 5 to 15 percent of surfactant and a solvent replenished till 100 percent. The fluroxypyr.cyhalofop-butyl compound weedicide is safe to paddy; 90 g of the weedicide is used in one mu of the paddyfield and can achieve excellent weeding effect; the weed preventing effect can achieve over 80 percent for thirty days and achieve over 90 percent for sixty days; and with the increase of dosage, the preventing effect is obviously strengthened; and once application of the weedicide can prevent and remove the weeds in the whole growth period and has no influence on the succession crop. The fluroxypyr.cyhalofop-butyl compound weedicide is used for preventing and controlling the weeds of the paddy field.

The invention discloses a cyhalofop-butyl-containing pesticide composition, which comprises common additives, cyhalofop-butyl and quinclorac, wherein active ingredients are the cyhalofop-butyl and the quinclorac; the mass-part ratio of the cyhalofop-butyl to the quinclorac is 1:1-1:50; and the accumulative mass percentage of the active ingredients in a preparation is 1 to 70 percent. The cyhalofop-butyl-containing pesticide composition is applied to the prevention and control of farmland weeds, particularly annual gramineous weeds in paddy field. The composition has the prevention-control effect obviously improved compared with that of single agents, and reduces the using dosage of pesticide and cost.

The invention discloses a synergic herbicide composition containing cyhalofop-butyl and 2,4-dichlorophenoxyacetic acid and application thereof. The herbicide composition comprises the cyhalofop-butyl and the 2,4-dichlorophenoxyacetic acid which serve as the main active ingredients, wherein the mass ratio of the cyhalofop-butyl to the 2,4-dichlorophenoxyacetic acid is 1-60:1-60. The synergic herbicide composition can be used for preparing herbicides for controlling post-emergence weeds in paddy field. Compared with single-composition herbicide, the herbicide composition has a broad herbicide spectrum and acts for a long time on the premise of improving the herbicide effect, is safe for the paddy fields and after-reap crops and particularly has obvious effect of controlling various gramineous weeds and broadleaf weeds in the paddy fields.

The invention discloses a gibberellic acid-containing herbicide composition and a preparation method as well as application thereof. The gibberellic acid-containing herbicide composition is prepared from the following components in parts by weight: 0.01 to 99 parts of gibberellic acid and 1 to 90 parts of herbicide; the herbicide is one or a mixture of at least two of cyhalofop-butyl, penoxsulam, metamifop, bispyribac-sodium, quinclorac, anilofos, pretilachlor, butachlor, mefenacet, bensulfuron methyl, pyrazosulfuron-ethyl, pyriminobac-methyl, bentazone, mesotrione, halosulfuron-methyl, metolachlor, pendimethalin, oxadiazon, oxadiargyl, MCPa, fluroxypyr and diflufenican. The gibberellic acid-containing herbicide composition has synergism to weed prevention and control, the weed control efficiency is improved, the safety of the herbicide to crops can be improved, the herbicide phytotoxicity problem in agricultural production is fundamentally solved, and meanwhile the crop yield is improved by adjusting crop growth.

The invention discloses a herbicide and the application method thereof for weeds in a transplanted rice field. According to the characteristics of weeds in the transplanted rice field, the herbicide is obtained through reasonably screening and compounding the following herbicides with different efficacies and properties: pretilachlor, penoxsulam, bensulfuron methyl, cyhalofop-butyl, a quinoxalyloxy phenoxy propionate compound, sulfonylureas and benzobicylon, and is used in the rice field in different growth periods of rice according to different formulas and proportions, so that the weed killing effect is good, low toxicity is achieved, the weed control spectrum is expanded, the application amount is obviously reduced, the application times and application cost are reduced, the preparation of the herbicide is convenient, the storage time is longer, and the stronger practical value is achieved.

The invention relates to a cyhalofop-butyl and sulfonylurea herbicide-containing herbicide composition. The composition is mainly characterized by comprising 1 to 60 percent of cyhalofop-butyl, 1 to 60 percent of sulfonylurea herbicide, an auxiliary agent and other excipients, wherein the herbicide composition is prepared into wettable powder, water dispersible granules, a suspension agent, suspending emulsion, microemulsion and water emulsion. The herbicide composition is used for preventing and treating annual gramineous weeds of paddy fields.

The invention relates to a herbicide composition containing cyhalofop-butyl. The herbicide composition is characterized by containing 1 to 60 percent of cyhalofop-butyl serving as an active ingredient A, 1 to 60 percent of active ingredient B, auxiliary agent and other excipient, wherein the active ingredient B is selected from pyriftalid or pyriminobac-methyl; and the herbicide composition is prepared into wettable powder, water dispersible granules, suspending agent and emulsion. The herbicide composition is used for preventing and controlling annual gramineous weeds of paddy fields.

The invention discloses a herbicide composition, which is characterized by containing two active ingredients, namely cyhalofop-butyl ((R)-2-[4(4-cyano-2-fluorophenoxy) phenoxy]-butyl propionate and fluroxypyr-mepthyl (4-amino-3.5-dichloro-6-fluoro-pyridine-2-oxyacetic acid isooctyl ester); and a composition preparation for preventing and removing weeds of paddy fields can be prepared from the cyhalofop-butyl and the fluroxypyr-mepthyl with effective dose, solid or liquid carrier, auxiliary agent and other additive by a conventional method. The composition using the cyhalofop-butyl and the fluroxypyr-mepthyl has remarkable additive action, and can synthesize the combined action type, weeding activities and economic costs of the two agents by compounding the cyhalofop-butyl and the fluroxypyr-mepthyl.

The invention which belongs to the filed of herbicides relates to a mixed herbicide containing bentazone, cyhalofop-butyl and propanil and an application thereof. The herbicide of the invention treats bentazone, cyhalofop-butyl and propanil as main effective components, a mass ratio among bentazone, cyhalofop-butyl and propanil is 0.1-80:0.1-80:0.1-80, and above three components account for 1-85%of a total mass of the herbicide. The mixed herbicide of the invention has an application of postemergent weeding in the paddy field, and especially has a substantial effect in controlling various grassy and broadleaf weeds in the paddy field. Compared with a single dose, the mixed herbicide of the present invention allows weed resistance delay, broad weeding spectrum, and long persistent period to be realized and has security to paddy and later crops on condition that the drug effect is improved.

The invention relates to an herbicide composition containing metamifop, cyhalofop-butyl and halosulfuron-methyl. The herbicide composition contains active ingredients of the metamifop, the cyhalofop-butyl and the halosulfuron-methyl, wherein the metamifop accounts for 1-20wt% of the composition, the cyhalofop-butyl accounts for 1-30wt% of the composition and the halosulfuron-methyl accounts for 1-20wt% of the composition. The herbicide composition disclosed by the invention has a synergetic effect; in the control and removal of annual weeds in a paddy field, the effect of the herbicide composition is significantly better than that of various single agent in independent use; the herbicide composition can be used for widening a weeding spectrum, and the herbicide composition can be also used for reducing the use quantity of pesticides, reducing weed resistance risks, relieving environment pollution and delaying the generation of weed resistance.

The invention relates to compound herbicide for controlling paddy rice weed of Chinese sprangletop and barnyard grass. The compound herbicide can control the paddy rice weed of Chinese sprangletop and barnyard grass. The active ingredient of the invention is R (+) 2 [4 (2 fluoro 4 cyanophenoxy) phenoxy], butyl propionate and 3, 7-dichloroquinoline-8-carboxylic acid. The invention deeply examines interaction effect of barnyard grass and Chinese sprangletop, field control effect, complementarity of weed control spectrum, applicable formulation and so on. Indoor biological test and field control test show that cyhalofop butyl and quinclorac are scientifically portioned, and relevant auxiliary agent is added, and cyhalofop butyl quinclorac compound is made after being processed a certain technology. The control effect for the paddy field weed Chinese sprangletop and barnyard grass of the compound is obviously higher than single agent. The compound improves the control effect, enlarges the weed control spectrum, delays weed resistance, and reduces the using of pesticide. The invention not only lowers the agricultural cost, but also is much safer to crops.

The invention relates to bentazone.cyhalofop-butyl missible oil and belongs to the technical field of pesticide. The aim of the invention is to provide the bentazone.cyhalofop-butyl missible oil with good prevention effect, high safety to paddy and low cost. The bentazone.cyhalofop-butyl missible oil comprises the following main points that: the bentazone.cyhalofop-butyl missible oil is prepared from raw materials and auxiliary materials in percentage by mass: 15 to 30 percent of bentazone, 2 to 5 percent of cyhalofop-butyl, 13 to 18 percent of cosolvent, 10 to 12 percent of emulsifier and a solvent replenished till 100 percent; the solvent, the cosolvent and the bentazone are thrown sequentially and stirred; after the bentazone is fully dissolved, the cyhalofop-butyl is thrown and stirred; after full dissolution, the emulsifier is thrown into the solution; and the mixed solution is evenly stirred to obtain the bentazone.cyhalofop-butyl missible oil. Because the bentazone and the cyhaloop-butyl are compounded and act on different parts inside a weed body according to different weeding mechanisms of the bentazone and the cyhaloop-butyl through combination of advantages of two single weedicides, weeds are killed in different approaches, so that the better weeding effect is achieved. The bentazone.cyhalofop-butyl missible oil is used for preventing and controlling the weeds in a paddy field.

The invention belongs to the technical field of pesticides and discloses a cyhalofop-butyl pyriminobac-methyl penoxsulam oil flowable concentrate. Active components of the oil flowable concentrate are cyhalofop-butyl, pyriminobac-methyl and penoxsulam; the oil flowable concentrate comprises, by mass, 5 to 30% of cyhalofop-butyl, 1 to 10% of pyriminobac-methyl, 1 to 10% of penoxsulam, 1 to 15% of an emulsifier, 1 to 10% of a wetting dispersant, 0.1 to 5% of a suspension stabilizing agent, 0 to 5% of an antifreezing agent and 0.1 to 0.2% of a defoaming agent, with the balance being an oil base. The invention further discloses application of the oil flowable concentrate in prevention and killing of Alternanthera philoxeroides, Sagittaria pygmaea and barnyard grass in a paddy field. The oil flowable concentrate has a substantial synergistic effect, can substantially improve prevention and treatment effects on weeds, broadens a weed control spectrum, delays resistance of weeds, decreases an application amount, reduces application cost and has excellent spreading permeability, anti-shifting performance and anti-rainwash performance and high safety to crops.

The invention relates to the pesticide preparation field, and discloses a weeding composition. The weeding composition of the invention comprises metamifop and cyhalofop-butyl, and the weight ratio of the metamifop to the cyhalofop-butyl is 1-99:99-1. The invention also discloses a herbicide whose active component is composed of the weeding composition of the invention, and the weight percent of the weeding composition in the herbicide is 1-99%. The weeding composition and the preparation thereof of the invention have significantly improved prevention effect on Chinese sprangletop and goosegrass, have synergistic effect, have a reduced effective component using amount, can delay the generation of weed drug resistance, have reduced environmental pollution, are safe for paddy rice, and can be widely used in the agriculture field.