123 results about "Captan" patented technology

The present invention discloses synergistic germicide composition with active components including captan and at least one kind of triazole germicide compound. Of the germicide composition, captan and triazole germicide compound have the weight ratio of 1 / 40 to 40 and account for 1-90 wt%. The composition has proper amount of functional assistants and carrier added for being prepared into suspension, wettable powder, water dispersed granule, microemulsion, etc. The composition may be used for preventing and treating diseases caused by oomycetes, ascomycete, basidiomycete and other germs.

A pest control composition and a pest control method which have the heightened effect of controlling harmful insects living in soils and / or seeds and simultaneously have the heightened effect of controlling diseases infectious through soils and / or seeds. The pest control composition contains as active ingredients at least one organophosphorus compound selected from the group consisting of S-sec-butyl O-ethyl 2-oxo-1,3-thiazolidin-3-ylphosphonothioate, O-ethyl-S-n-propyl(2-cyanoimino-3-ethylimidazolidin-1-yl)-phosphonothiolates, and S,S-di-sec-butyl O-ethyl phosphorodithioate and at least one bactericide selected from the group consisting of fluazinam, benomyl, tolclophos-methyl, metalaxyl, captan, iprodione, chlorothalonil, dazomet, hymexazol, flutolanil, and validamycin. The method comprises using the composition.

The invention relates to a bactericidal composition. The effective components of the composition comprise (A) captan and (B) methoxyl acrylic ester bactericide comprising kresoxim-methyl, azoxystrobin, enestroburin, alkene oxime amine, and the like; the mass proportion of the A to the B is 50:1-1:50, preferably 20:1-1:20; and the balance is auxiliary components which are allowable to be used in pesticide and can be acceptable. The captan and the methoxyl acrylic ester bactericide after compounding have obvious synergy, and are mainly used for controlling diseases on crops such as cereals, fruit trees, vegetables, and the like.

The invention discloses a sterilizing composite containing captan. The sterilizing composite comprises an effective and active component, wherein the effective and active component of the sterilizing composite consist of captan as a first active component and methoxyl acrylate bactericide from pyraclostrobin, trifloxystrobin and coumoxystrobin as a second active component; the weight ratio of the first active component to the second active component is 1:10-20:1, and preferred as 1:5-10:1. The sterilizing composite can be prepared into an agriculturally-allowable suspending agent, a suspending emulsion, a suspending seed coating agent, a micro-capsule suspending-suspending agent and seed-treatment dispersible powder. The sterilizing composite disclosed by the invention has the advantages that the components are reasonable, the sterilizing effect is good, the medicine use cost is low, and the activity and the sterilizing effect are not in simple superposition of various components. Compared with the traditional single preparation, the sterilizing composite disclosed by the invention not only has an obvious sterilizing effect, but also has an obvious synergistic action, has no pollution to crops, is good in safety, meets the requirement of safety of pesticide formulations, and has obvious preventing effects on wheat powdery mildew, rice sheath blight diseases, cochliobolus miyabeanus, damping off, vegetable pythium aphanidermatum and downy mildew.

The invention relates to a sterilization composition containing captan and copper calcium sulfate and application of the sterilization composition. The sterilization composition contains the captan and the copper calcium sulfate which serve as active ingredients. According to the active ingredients, the weight ratio of the captan to the copper calcium sulfate is 1:100-100:1. The captan and the copper calcium sulfate which serve as the active ingredients account for 5 to 90 percent of the weight of the composition. The sterilization composition containing the captan and the copper calcium sulfate is applied to prevention and control of germ harm to grains, fruits, vegetables and economic crops. By compounding the captan and the copper calcium sulfate, a synergistic effect is achieved, and the composition can be used for treating fungal and bacterial diseases in soil, has multiple purposes and widens the disease preventing spectrum; and the consumption of the copper calcium sulfate is reduced, so that the composition is safe in use. The composition, which is used for treating the soil or soaking (mixing) seeds, can prevent seed rotting and root rotting caused by soil diseases, ensure complete seedlings and relieve diseases at a seedling stage, and has a good effect.

The invention relates to an insect control method for improving the yield of Cuiguan pears. The method comprises the following steps that (1) after Cuiguan pear blossoms fall, leave spraying is continuously carried out three to five times every five to ten days. The leave spraying medicament forming method comprises the steps that after 15% triadimefon and 50% carbendazim are mixed according to the proportion of 3:1, 1000-fold to 1500-fold water is used for attenuation to obtain leave spraying medicaments; (2) before the Cuiguan pears are sleeved with bags, 500-fold captan is applied to the Cuiguan pears once, 2000-fold pyrethroid pesticides are applied to the Cuiguan pears once five days later, and 1000-fold thiophanate is applied to the Cuiguan pears once three days later. The insect control method effectively carries out comprehensive insect control, improves the yield of the Cuiguan pears by 5-10%, and greatly increases incomes of fruit growers.

The invention discloses a solid bactericide pesticide classification method. The method comprises the following steps of: 1) detecting raw solid bactericide agents with purity of more than 98 percent by using a terahertz time domain system, acquiring time domain signals of samples, and calculating absorption spectrums, wherein the raw bactericide agents comprise ferbam, thiophanatemethyl, probenazole and captan; 2) analyzing the absorption spectrums of the samples by using a main component analysis method, and extracting features for classifying the spectrums of the samples; and 3) identifying the terahertz spectrums of the bactericide samples by using a radial basis function neural network. The terahertz time domain spectrum technology-based bactericide classification method is simple and quick in the whole experiment process and high in identification accuracy, is suitable for classification of various solid bactericide pesticides, and has certain market application prospect.

The invention discloses a method for controlling diseases and pests of peach trees. The method comprises the following steps: using nano sulfur powder before germination; using a mixture of captan-tebuconazole, imidacloprid and cyhalothrin before blossom; using a mixture of butyl sulfur imidacloprid, abamectin bifenthrin, fluorine aliette and flower tanghinin after blossom; using a mixture of thiophanate methyl, quinolinone, carbosulfan, cyhalothrin and flower tanghinin in the young fruit period; using a mixture of PBO (penicillin in beeswax) (fruit tree chemical promotive and control agent), flower tanghinin, captan-tebuconazole and chlorantraniliprole before fruit picking; using a mixture of abamectin bifenthrin, fluorine aliette and carbosulfan after fruit picking and trimming; and performing final-period management. The method for controlling the diseases and pests of the peach trees, provided by the invention, is good in control effect and strong in pertinence and is simple and convenient to operate.

The invention discloses application of a bactericidal compound containing metconazole to preventing wheat scab.Effective active components are composed of one of a first active component metconazole and a second active component captan, thiram and prochloraz, the weight ratio of the first active component and the second active component is 20:1-1:20, and the sum of the content of the first active component and the content of the second active component accounts for 5-60% of the total weight of the compound.The compound can be prepared into a suspending agent, microemulsion, emulsion in water, dispersible oil suspending agent, wettable powder and water dispersible granules allowed in agriculture.The compound can also be used for preventing other diseases caused by fusarium graminearum beside wheat scab, and has a remarkable prevention effect on the rice bakanae disease.

The invention discloses a compound composition containing methanesulfonyl azole. The compound composition takes methanesulfonyl azole and a germicidal compound II as active ingredients, wherein the germicidal compound II is selected from any one of II.1) bactericides of other types such as oligosaccharins, chitosan and oligochitosan, II.2) organophosphates bactericides such as phosethyl-al and tolclofos-methyl and II.3) organic sulfur bactericides such as captan and isoprothiolane. Test results show that methanesulfonyl azole and the germicidal compound compounded in a certain proportional range show an obvious synergistic interaction effect rather than simple superposition of the two components. The compound composition is remarkable in control effect of preventing and controlling bacterial diseases of crops and less in dosage and further can treat fungal diseases. The compound composition is wide in bacteriocidal spectrum and meanwhile, the pesticide resistance of pathogenic bacteria is alleviated.

The invention discloses a fluxapyroxad-containing sterilization composition. The sterilization composition contains an active component A and an active component B, the active component A is selected from fluxapyroxad, the active component B is selected from anyone of active ester, dithianon, fosetyl-aluminum, chlorothalonil and captan, and the weight ratio of the active component A to the active component B is 1:80-60:1. The composition has a high activity against a plurality of diseases on a plurality of crops, has an obvious synergistic effect, enlarges the sterilization spectrum, and has the characteristics of small drug dose, rain wash resistance and obvious synergy.

The invention relates to the technical field of pesticide synthesis, and particularly discloses a preparation method of captan. The preparation method comprises the following steps: S1, dissolving 1, 2, 3, 6-tetrahydrophthalimide in an alkaline solution to form a mixed solution, and cooling the mixed solution; S2, carrying out condensation reaction on perchloromethyl mercaptan and the mixed solution cooled in the step S1 in a tower reactor, and introducing compressed air for bubbling to form flooding entrainment; and S3, separating the flooding entrainment from the mixed solution obtained in the step S2, and heating, filtering, washing and drying the mixed solution obtained after separation to obtain the captan. The process is simple, the generated impurities are low, the generated wastewater is less, the product yield is high, and the prepared captan is good in quality and high in purity.

The invention discloses a specific liquid fertilizer for beet planting and a preparation method thereof. The liquid fertilizer is prepared from more than 20 raw materials such as medical stone powder, CW strain, honey and captan through twice fermentation. The specific liquid fertilizer for beet planting has the characteristics that the sugar content of beet is remarkably improved, and the sugar content of beet is increased by 1 to 3 percent.

The invention discloses an antibacterial type high-density polyethylene tube. The antibacterial type high-density polyethylene tube is prepared from the following raw materials in parts by weight: 80-84 parts of high-density polyethylene, 0.8-1 part of polycarbodiimide, 1-2 parts of epoxy tetra hydro dioctyl phthalate, 1-2 parts of captan, 2-3 parts of oxidized polyethlene wax, 2-3 parts of cellulose acetate fiber, 0.7-2 parts of potassium perfluorobutanesulfonate, 0.5-1 part of N-hydroxymethyl acrylamide, 1-2 parts of ethyl naphthol, 0.2-0.4 parts of waste scrap iron, 4-6 parts of wollastonite powder and 10-13 parts of compound filler. The tube disclosed by the invention has good antibacterial effect, good impact resistance and heat resistance; the physical performances of the tube are greatly improved by the added compound filler; moreover, the antibacterial type high-density polyethylene tube has good ring stiffness and extensive applicability.

The invention relates to an industrialized cleaning production process of captan, which is characterized by comprising the following steps: adding the water into a reaction kettle, stirring the water and adding an alkali metal compound and phthalimide or directly adding phthalimide salt and adding a catalyst; dripping perchloromethylmercaptan at 0-30 DEG C after the compounds are completely dissolved; keeping the temperature and reacting for 0.5-3.0 hours; transferring the material to a purifying and temperature-rising processing kettle; heating and rising the temperature to 50-100 DEG C; keeping the temperature for 0.5-5.0 hours; and cooling, filtering, washing and drying to obtain the captan original medicine.

The invention provides a low-toxicity and high-efficiency insecticide for wheat, and relates to the technical field of pesticides. The low-toxicity and high-efficiency insecticide for wheat is prepared from the following raw materials in parts by weight: 80-90 parts of herba artemisiae scoparzae, 10-20 parts of achnatherum inebrians endophytes, 3-5 parts of sodium alkyl benzene sulfonate, 5-10 parts of fenpropathrin, 1-3 parts of cypermethrin, 18-45 parts of pyroligneous, 2-5 parts of captan, 8-10 parts of thiram, 3-5 parts of mancozeb, 20-30 parts of plant extract, 0.5-1 part of manganese sulfate, 15-20 parts of fructus gleditsiae powder, 10-20 parts of herba houttuyniae, 10-12 parts of matrine, 10-15 parts of oxymatrine, 8-10 parts of fructus cnidii extract and 2000-3000 parts of water.The low-toxicity and high-efficiency insecticide for wheat, provided by the invention, has better insecticidal, bactericidal and antibacterial functions, can inhibit reproduction of infectious microbes under low concentration, has anti-bacterial and anti-insect effects, has obvious effects on prevention and treatment of diseases and insect pests of wheat, and has low toxicity and high insecticidalefficiency.

The invention discloses a composition containing resin acid copper salt and captan, a preparation method and application thereof, and belongs to the technical field of pesticide. The composition containing resin acid copper salt and captan comprises the following raw materials in parts by weight: 1 to 30 parts of resin acid copper salt, and 1 to 70 parts of captan. The invention further disclosesa preparation method and application of the composition containing resin acid copper salt and captan. The composition is prepared by taking resin acid copper salt and captan as raw materials, and canproduce high synergistic effect, expand bactericidal broad-spectrum, and overcome and delay producing drug resistance by pathogenic bacteria. The composition is superior to a single agent in terms ofcontrol effect, rainwater washing resistant, good in fast-acting property, and long in lasting period, ensures that the number of use is reduced, can control various pathogenic bacteria and diseases at the same time, and reduces the pesticide use cost. The composition particularly has obvious synergistic effect on citrus red mite, citrus rust mite, citrus melanose, citrus anthracnose, citrus downymildew, citrus canker, citrus gray mold and citrus whitefly and aphid, and is good in control effect.

The invention provides captan sterilization composition which comprises an effective active ingredient A and an effective active ingredient B, wherein the effective active ingredient A is captan, the effective active ingredient B is one of thiophonate-methyl, prochloraz and Prochloraz manganese, and the sterilization composition comprises the following ingredients (by weight): 2-78 percent of effective active ingredient A, i.e., captan, 2-78 percent of effective active ingredient B, i.e., thiophonate-methyl, prochloraz and Prochloraz manganese, and accessory ingredient and excipient for the rest. The composition of the captan and the thiophonate-methy can be made into wettable powder, water dispersible granules and suspending agent, and can be used for preventing and treating anthracnose of cucumber, alternania mail Roberts and venturia pirina with remarkable synergism; the composition of the captan, the prochloraz and the salt thereof can be made into wettable powder, water dispersible granules, suspending agent and suspension emulsion and can be used for preventing and treating anthracnose of citrus trees with remarkable synergism.

The invention discloses a bactericidal composition with an effective active ingredient composed of benthiavalicarb isopropyl and captan at weight ratio of (1:20)-(10:1), preferably (1:10)-(5:1). The composition can be compounded to agriculturally allowable water dispersible granule, wettable powder or suspending agent. The composition has the advantages of reasonable component, good bactericidal effect and low pesticide utilization cost, and the activity and sterilizing effect are not the simple superposition of the activity of all components. Compared with a single preparation agent, besides the remarkable sterilizing effect, the composition also has the advantages of remarkable synergistic effect, low pesticide utilization cost, zero contamination for plants and good safety, and meets safety requirements of pesticide preparation agent. The composition also has remarkable prevention and cure effects for false mildew, powdery mildew and anthracnose of the crops.

The invention discloses an efficient sterilization composition. The efficient sterilization composition comprises an active component A and an active component B, wherein the active component A is selected from fluopyram; the active component B is selected from any one of the following compounds: dithianon, cyprodinil, captan, fosetyl aluminium, chlorothalonil and bromothalonil; the weight ratio of the active component A to the active component B is 1:80 to 60:1. The composition has high activity to various diseases on a plurality of crops, exerts remarkable synergistic effects, and expands a fungicide spectrum. Moreover, the efficient sterilization composition has the characteristics of small dosage, rain wash resistance, and remarkable efficacy enhancement.

The invention relates to an industrial clean production process of captan, which is characterized in that it comprises the following steps: adding water into a reaction kettle, adding an alkali metal compound and 1,2,3,6-tetrahydrophthalamide under stirring imide or directly add phthalimide salt, after it is completely dissolved, add trichlorothiochloromethane dropwise at 0-30°C, and keep warm for 0.5-3.0 hours. Then the material is transferred to a purification and temperature-increasing treatment kettle, heated to 50-100° C., kept at this temperature for 0.5-5.0 hours, then cooled, filtered, rinsed, and dried to obtain the original drug of decaptan.

The invention discloses a summer high-yield planting method for achyranthes bidentata and belongs to the field of traditional Chinese medicine planting. The method comprises the steps of seed treatment, sowing, field management and pest control. According to the seed treatment step, winnowing is carried out on seeds first before sowing, and full seeds are selected and exposed to the sun for two days. One day before sowing, quintozene or captan or carbendazim is adopted, the amount of the chemical is 0.2 percent to 0.3 percent of the dry weight of the seeds, the seeds are socked in solution of the chemical and water at 30 DEG C for 15 minutes to 30 minutes, water is added slowly, the water temperature is maintained at 22 DEG C to carry out seed soaking for 14 hours to 18 hours, and the seeds are bailed out and aired. The summer high-yield planting method for the achyranthes bidentata has the advantages that the yield is high, the quality is good, the root system is thick and strong, and higher economic benefits can be gained.

The invention discloses application of a sterilization composition containing captan and tebuconazole in prevention and treatment of FusaHum graminearum. The sterilization composition comprises effective active ingredients which are composed of a first active ingredient--captan and a second active ingredient--tebuconazole, wherein the weight ratio of the first active ingredient to the second active ingredient is 90: 1 to 1: 90; and the sum of the contents of the active ingredients accounts for 2% to 90% of the total weight of the composition. The composition may be made into agriculturally allowable dosage forms of a wettable powder, a water dispersible granule, a suspending agent, a dispersible oil suspending agent, a suspoemulsion, an ultra low volume liquid and a dispersible liquid. The sterilization composition provided by the invention has significant control effects on FusaHum graminearum.

The invention relates to an insecticidal composition containing thifluzamide and captan and applications thereof. The insecticidal composition comprises active components of the thifluzamide and the captan. The weight ratio of the thifluzamide and the captan is in a range of 1:100 to 100:1. The active components of the thifluzamide and the captan account for 5% to 90% of the composition by weight. The insecticidal composition containing the thifluzamide and the captan is applied to prevention and treatment of germs of cereals, fruits, vegetables and commercial crops. The thifluzamide and the captan are composited, and the composition has a synergistic interaction effect and can treat both fungi and bacteriosis in soil. One pesticide has multiple purposes, the disease spectrum prevention is broadened, the usage amount of the captan is reduced, and the usage is safe. The insecticidal composition is used for treating soil or soaking (dressing) seeds, and accordingly, seed rot and root rot caused by soil diseases can be prevented, full stands are guaranteed, diseases at seedling stages are reduced, and the effect is good.

The present invention discloses a fenamidone-containing sterilization composition, which comprises an active component A and an active component B, wherein the active component A is selected from fenamidone, the active component B is any one compound selected from propamocarb or a salt thereof, cymoxanil, chlorothalonil, captan and iprovalicarb, and a weight ratio of the active component A to the active component B is 1:80-60:1. The composition provides high activities for a plurality of plant diseases of a plurality of crops, and has characteristics of significant synergistic effect, bacterial killing spectrum expanding, low use amount, rainfall erosion resistance, and significant synergy.

The invention relates to a device for preparing captan. The device comprises a first mixing device, a second mixing device, a first reaction device, a second reaction device, a third reaction device,a filtration device and a drying device; the first mixing device is provided with a phthalic anhydride inlet and an ammonia water inlet; a feed inlet of the second mixing device is connected with a discharge hole of the first mixing device, and the second mixing device is provided with a sodium hydroxide inlet; a feed inlet of the first reaction device is connected with a discharge hole of the second mixing device, and the first reaction device is provided with a trichloromethyl sulfochloride inlet; a feed inlet of the second reaction device is connected with a discharge hole of the first reaction device; a feed inlet of the third reaction device is connected with a discharge hole of the second reaction device; a feed inlet of the filtration device is connected with a discharge hole of thethird reaction device; an inlet of the drying device is connected with a discharge hole of the filtration device. When the device is adopted by preparing the captan, intermediate purification is notneeded, a product high in content and yield can be obtained directly, the technology is simple, the reaction retention time is short, and continuous production can be achieved.

The invention discloses a method for quickly and quantitatively screening captan residue in fruit through high-performance thin-layer chromatography coupled with photobacterium phosphoreum biosensing,and belongs to the technical field of the food detection. The method comprises the following steps: firstly performing sample preparation and sample cleaning on fruit homogenate through solid-liquidextraction, and then developing an extract through high-performance thin-layer chromatography, enabling the target captan to separate from a sample interference matrix substance in extraction liquid,and then coupling a chromatographic separation result with the photobacterium phosphoreum biosensing through a dipping manner; and quantitatively assessing the target captan residue concentration in the fruit by combining the bioluminescence autography with digital image analysis. The invention establishes a method for quickly and quantitatively screening captan residue in fruit through high-performance thin-layer chromatography coupled with photobacterium phosphoreum biosensing, the method has the advantages of being quick, accurate and economic; and meanwhile, the method example for quicklyand reliably screening harmful substance residue with invisible spectrum characteristic in the food is provided based on the establishment of the high-performance thin-layer chromatography and bioluminescence autography coupled detection method.

The invention discloses an efficient fungicidal composition. The efficient fungicidal composition comprises an active component A and an active component B, wherein the active component A is selected from fluopyram; the active component B is selected from any one of the following compounds: dithianon, cyprodinil, captan, fosetyl-aluminium, chlorothalonil and bromothalonil; and the weight ratio of the active component A to the active component B is (1 to 80)-(60 to 1). The composition has relatively high activity on a plurality of diseases of a plurality of crops and has an obvious synergism; the bacteriocidal spectrum is expanded; and the composition has the characteristics of low consumption of the fungicidal component, resistance to rain washing and obvious synergism.

The invention discloses a nutrient solution for succulent plants and a preparation method thereof. The nutrient solution is prepared from,by weight,5-7 parts of potassium ferrate,2-6 parts of Captan,4-6 parts of surface active agent,8-10 parts of thiram,25-40 parts of ferrous sulfate,10-16 parts of new phytomycin,8-14 parts of monocalcium phosphate,3-7 parts of gibberellin,3-5 parts of chitosan oligosaccharide,1-5 parts of corrosion remover,4-12 parts of derris root extracts,6-12 parts of water-soluble silicon fertilizer,10-15 parts of oxymatrine,15-25 parts of azadirachtin extracts,10-16 parts of butyl glycidyl ether and 300-400 parts of water. The nutrient solution improves the disease resistance and pest resistance capabilities of the succulent plants,achieves the purposes of high yieldand high quality,is efficient and environmentally friendly,can promote the growth of the succulent plants,does not contain harmful substances,and can significantly improve the breeding efficiency,andthe nutrient solution has the advantages of improving the propagation efficiency,being low in cost,high in soil absorptivity,economical and environmental friendly,and improving the production value.

The invention discloses a sterilization composition containing penthiopyrad. The sterilization composition contains an active component A and an active component B, wherein the active component A is selected from penthiopyrad; the active component B is selected from any one of the following compounds: cymoxanil, dimethomorph, propamocarb or a salt thereof, iprovalicarb, captan, chlorothalonil, metalaxyl or a salt thereof; the weight ratio of the component A to the component B ranges from (1:80) to (60:1). The composition has a synergistic effect on a plurality of types of diseases which endanger agricultural production; the dosage of pesticides is reduced; the residual amount of the pesticides on crops is reduced and the environmental pollution is alleviated; the composition is safe to human and livestock and has good environment compatibility, and drug resistance of the diseases is not easy to cause.