14 results about "Propamocarb" patented technology

The invention discloses a reactor for processing cymoxanil hydrochloride, which relates to the field of mixed processing. Cymoxanil hydrochloride is a highly efficient, low-toxic, systemically absorbable carbamate fungicide. Cymoxanil hydrochloride aqueous solution has been widely used to date. During preparation of this solution, a pump body draws a solution from a silo into a transfer silo, causing the liquid level above the rotary disk to increase. When the liquid level reaches a threshold, the exhaust float valve is closed. At this time, the pressure increases continuously and rapidly. As the pressure increases, the first piston moves upward, causing the rotary disk to rotate slightly, and its permeability increases, maintaining the pressure difference between the upper and lower parts. At the same time, the solution that passes through passes through the fixed disk and disperses and falls, and is fully in contact with the circulating nitrogen in a reduced pressure environment, thereby achieving efficient recovery of the additive. In this way, through the delivery rate of the pump body and the change in the permeability of the solution by the pressure control component, a pressure difference of a circulating flow is efficiently formed, and a dripping rain curtain is formed that can fully contact with the nitrogen. Combined with low-speed stirring and heating, the overall additive recovery speed is greatly accelerated.

The application discloses a dCAPS molecular marker for detecting a residual amount of a cucumber fruit myclobutanil and application thereof, and relates to the technical field of molecular markers.The dCAPS molecular marker is derived from a SNP at a position of 158 of a CsABCI19 gene promoter.The dCAPS molecular marker is applied to detection of a residual amount of a cucumber fruit myclobutanil.The method comprises the following steps: (1) extracting DNA; (2) performing a PCR reaction; and (3) performing Nco I enzyme cutting, so that two band types are obtained, one is 491 bp, corresponding to SNP A, and the other is 444 bp and 48 bp, corresponding to SNP G, and the two types are identified as a fruit low myclobutanil residual amount germplasm and a fruit high myclobutanil residual amount germplasm respectively.The verification result of the dCAPS molecular marker in the germplasm resource shows that the identification result of the molecular marker is consistent with the phenotype, and the dCAPS molecular marker can be used for rapidly identifying the cucumber germplasm resource with a low myclobutanil residual amount in a fruit, and is a good breeding auxiliary selection marker.

The invention discloses a micro-capsule suspending agent containing fluroxafen and propamocarb as well as a preparation method and application of the micro-capsule suspending agent, and belongs to the field of agricultural plant protection. The flurobixafen and propamocarb microcapsule suspending agent disclosed by the invention is prepared by taking polymethylene polyphenylene isocyanate and PEG400 (Polyethylene Glycol 400) as capsule wall materials through an interfacial polymerization method. The bactericidal composition has a good control effect on various crop diseases, has an obvious synergistic effect compared with a single agent, is remarkably improved in bactericidal activity, greatly delays the generation of drug resistance of germs, broadens the bactericidal control spectrum, and is quick and more durable in effect, stable in capsule wall structure, prolonged in pesticide lasting period, reduced in pesticide application frequency, reduced in phytotoxicity risk and safe to crops.

The application belongs to the field of preparation and application of catalysts, and provides a preparation method of a catalyst for synthesizing 2,6-diethyl anilino ethyl propyl ether, wherein the catalyst uses copper and aluminum salt as a metal source and an alkali solution as a precipitant, a copper-aluminum spinel catalyst is prepared by using a chemical co-precipitation method, and the catalyst is applied to the synthesis reaction of 2,6-diethyl anilino ethyl propyl ether which is an important intermediate of propamocarb. After process optimization, the application has the advantages of strong reaction selectivity, high yield, good color and high purity of the product, easy availability of the reaction raw material, simple operation, simple post-treatment, and repeated cyclic use of the copper-aluminum spinel catalyst, and not only meets the requirements of green chemistry, but also has important significance for energy saving and emission reduction.

The invention discloses a bactericidal composition and application thereof, the bactericidal composition contains an active component A and an active component B, the active component A is selected from pyrimidine nucleoside antibiotics, and the active component B is selected from any one of metalaxyl and salt, propamocarb and salt, fluazinam or active ester. The composition disclosed by the invention has relatively high activity on a plurality of diseases on a plurality of crops, and has an obvious synergistic effect, and the bactericidal spectrum is expanded. The composition has the characteristics of small dosage, rain wash resistance and obvious synergism.

The invention relates to the technical field of pesticides, in particular to application of a bactericidal composition to prevention and treatment of pepper root rot, the composition comprises active components and auxiliaries, the active components are propamocarb hydrochloride and fludioxonil, and the composition has an obvious synergistic effect on prevention and treatment of pepper root rot and can be used for preventing and treating pepper root rot. The main active components have different action mechanisms, can reduce the generation of drug resistance of pathogenic bacteria, is beneficial to prolonging the service life of the pesticide active components, and has the advantages of low dosage, good control effect, safety to crops and small environmental pollution.

The invention relates to a Lipu taro pest control method and pesticide spraying equipment, and the method comprises the following steps: carrying out primary ploughing on a planting land, and exposing the soil in the sun for 15-20 days; turning over for the second time, and meanwhile, applying fully decomposed farmyard manure and plant ash; a groove is dug in the edge of the planting field, a water storage tank surrounding the planting field is constructed, and water guided into the water storage tank is disinfected; preparing a liquid medicine from metalaxyl or carbendazim according to a set proportion, soaking the seed taros for 15-30 minutes, sterilizing, airing, and sowing; according to the method, dimethomorph, cymoxanil or fluopicolide propamocarb are prepared into liquid medicine according to a set proportion, and the liquid medicine is sprayed to the taros once every 7-10 days through spraying equipment and is continuously sprayed for 2-3 times; hymexazol or metalaxyl mancozeb is selected for root irrigation treatment, and 200-300 ml of hymexazol or metalaxyl mancozeb is metered for each plant. Compared with the prior art, repeated epidemic diseases are prevented, and the epidemic disease control effect is improved.

The invention belongs to the technical field of pesticides, and particularly relates to a synthesis method of a propamocarb hydrochloride aqueous solution, which comprises the following two steps: S1, adding excessive N, N-dimethyl propane diamine into a low-temperature acylation kettle, and carrying out acylation reaction on the excessive N, N-dimethyl propane diamine and phosgene to generate 3-(dimethylamino) propyl carbamoyl chloride hydrochloride; and S2, carrying out esterification reaction on the 3-(dimethylamino) propyl carbamoyl chloride hydrochloride and excessive normal propyl alcohol to generate propamocarb hydrochloride. According to the invention, the escape of phosgene is solved, and the absorption kettle is innovatively introduced on the basis to absorb trace phosgene which may escape, so that zero emission of phosgene is realized, the potential safety hazard of phosgene residue is thoroughly eliminated, the production safety is greatly improved, and meanwhile, the environmental pollution possibly caused by phosgene leakage is also solved; and the personal safety of production personnel and the sustainability of the environment are guaranteed.

The invention relates to the technical field of plant cultivation, in particular to a cold-proof and synergistic cultivation method for newly planted banana seedlings, which comprises the following steps: from September 1st to September 30th, transplanting anti-yellowtop banana nutrition cup seedlings with about eight leaves into planting furrows, and covering with a silver black mulching film; before October 15, 200-300 mL of paclobutrazol banana source mixed liquid is applied to robust banana seedlings which newly grow 3-5 leaves for one week, and the paclobutrazol banana source mixed liquid is prepared by mixing 0.2-0.5 g / plant of 25-30% paclobutrazol and 3-7 g / plant of banana source with water; the two opposite ends of a plurality of supporting frames protruding relative to the planting furrows are inserted into furrow furrow surfaces 15-18 cm away from the planting furrows, after mixed liquid composed of 500-700 times of kasuthiadiazole copper, 700-900 times of propamocarb and 2500-3500 times of cyhalofop-methyl is applied to the whole garden, the surfaces of the supporting frames are covered with thin films, and an arched shed is formed. Compared with the prior art, the method has the advantages that by determining the planting and dwarfing treatment time, inserting the arched shed into the furrow surface, delaying the film breaking time of the banana seedlings and applying the pesticide with low yellow leaf rate for film mulching, the risk of weevils damage and bacterial and fungal infection is reduced, and the banana yield is increased.

A method of controlling or preventing late blight caused by Phytophthora infestans in Solanum species comprising applying a composition comprising mandipropamid and propamocarb, or a salt thereof, to

A method of controlling or preventing late blight caused by Phytophthora infestans in Solanum species comprising applying a composition comprising mandipropamid and propamocarb, or a salt thereof, to

Cucumber CsSTAR2 gene and its encoded protein are applied to reduce pesticide propamocarb residue, and the present application relates to the field of molecular biology.The nucleotide sequence of cucumber CsSTAR2 gene and the amino acid sequence coded by cucumber CsSTAR2 gene are disclosed.The protein expressed by CsSTAR2 gene, expression vector, transgenic cell or engineering bacteria are disclosed.The application of CsSTAR2 gene in reducing pesticide propamocarb residue is disclosed.In the expression mode of CsSTAR2 in response to propamocarb, it is shown that CsSTAR2 can quickly respond to the induction of propamocarb and play a function in low propamocarb residue of fruits.In the CsSTAR2 overexpression plant, the propamocarb residue of fruits is lower than that of wild type plant;the propamocarb residue in CsSTAR2 gene editing plant is higher than that of wild type plant, and there is a very significant difference, and CsSTAR2 has the function of positively regulating the low propamocarb residue of cucumber fruits.

The present invention discloses a propamocarb hapten, an artificial antigen thereof and applications thereof. The propamocarb artificial antigen and monoclonal antibody prepared from the propamocarb hapten prepared in the present invention have strong specificity for ELISA detection, and the IC<subgt;50< / subgt> value is 21.29 μg / L. The present invention also provides an immunochromatographic test strip for detecting propamocarb, which is coated with the coating antigen of the propamocarb artificial antigen prepared in the present invention and a monoclonal antibody. The detection limit for the propamocarb standard solution is 25 μg / kg, and the detection sensitivity in fruit and vegetable samples can reach 100 μg / kg, realizing rapid and accurate qualitative detection of propamocarb, and having broad promotion and application value.

The application discloses a method for removing propamocarb in plant extracts, and belongs to the technical field of pesticide residue removal, which comprises the following steps: S1. adjusting the pH of the dissolved solution of the dissolved extract to 8-12, and then performing cation exchange resin chromatography to collect an eluate; and S2. adjusting the pH of the eluate to 4-6, and then concentrating to obtain a removal product. The application is used for overcoming the technical problems that the existing technology cannot completely remove propamocarb or damages effective components, and therefore provides a method for removing propamocarb in plant extracts. The application uses the existence state difference of effective components and propamocarb in plant extracts under different pH environments and the method of ion exchange selective adsorption to efficiently remove propamocarb, while ensuring the recovery of the effective components, and improves the safety of the plant extracts.