34 results about "Kasugamycin" patented technology

The invention relates to a Zhongshengmycin production strain and application of the Zhongshengmycin production strain, the strain is streptomyces sp. ZS-2, the Zhongshengmycin production strain has good Zhongshengmycin production activity, and a fermentation product has higher bacteriostatic activity and a wider bacteriostatic range.

This invention relates to the field of agricultural pest control, and particularly to a compound nanogel sustained-release agent, its preparation method, and its application. This invention provides a compound nanogel sustained-release agent comprising bromonitol, a synergist, a carrier material, and a cross-linking agent, wherein the synergist includes one or more of kasugamycin, amino oligosaccharides, thiazolium zinc, and copper hydroxide. This invention prepares a nanogel sustained-release agent by compounding bromonitol and the synergist, which has significant preventive effects against plant bacterial diseases such as bacterial wilt, bacterial angular leaf spot, canker, and soft rot. Furthermore, the compound nanogel sustained-release agent of this invention has small particle size, stable physicochemical properties under cold and heat, good dispersibility in water, no particle agglomeration, no particle size increase, a decomposition rate of less than 5%, a long-lasting effect, good safety, is not prone to inducing drug resistance, requires a small dosage, and simultaneously increases yield and efficiency.

The invention relates to the technical field of pesticides, and particularly discloses a biopesticide containing kasugamycin and application of the biopesticide containing kasugamycin. The preparation method comprises the following steps: obtaining a seed solution, fermenting, acidifying, adsorbing and separating, concentrating and crystallizing, and grinding kasugamycin, an auxiliary agent and water in a mass ratio of (3-4): (1-1.5): (4.5-6) to obtain the biological pesticide containing kasugamycin. The biopesticide containing kasugamycin provided by the invention is environment-friendly and safe, accurate in target and not easy to generate drug resistance, and can meet green agricultural requirements.

The invention belongs to the technical field of pesticide sterilization, and discloses a pesticide composition and application thereof.The pesticide composition comprises an active ingredient A and an active ingredient B. The active ingredient A is Cyclobutrifluram, the active ingredient B is any one of tetramycin, validamycin, phenazino-1-carboxylic acid or kasugamycin, and the active ingredient B is one of cyclobutrifluram, validamycin, phenazino-1-carboxylic acid and kasugamycin. The mass ratio of the active component A to the active component B is (1: 48)-(1: 52). The pesticide composition disclosed by the invention has an obvious synergistic effect on pathogenic bacteria and is harmless to target crops and other organisms.

The invention provides an agent for preventing and treating peanut bacterial wilt and a preparation method and application thereof, and belongs to the technical field of pesticide preparations, and the agent is a composite agent formed by scientifically compounding albendazole, carbendazim, kasugamycin, chlorobromoisocyanuric acid, chitosan oligosaccharide, amino-oligosaccharin, a seaweed extract, humic acid, palygorskite and trace elements. According to the invention, efficient inhibition of ralstonia solanacearum is realized, peanut system resistance is obviously activated, root development is promoted, rhizosphere microenvironment is improved, slow release of active components is realized by means of palygorskite, and the pesticide effect period is prolonged. Field trials show that the prevention and control effect reaches 84% or above, the yield increasing rate exceeds 22%, and the composition is environmentally friendly and high in safety. The bactericidal composition can be prepared into a water suspending agent or a dispersible liquid, is suitable for various application modes such as root irrigation and spraying, has the advantages of long lasting period and low resistance risk, and is suitable for large-scale popularization in green agriculture.

The invention discloses an acid stimuli-responsive bactericidal controlled-release agent and a one-step preparation method thereof. The method comprises the following steps: dissolving trivalent and divalent metal nitrates in deionized water to prepare a solution A, dissolving kasugamycin in a sodium hydroxide solution to prepare a solution B, and synchronously dropwise adding the solution A and a 2M sodium hydroxide solution C into the solution B to prepare the controlled release agent. The obtained controlled release agent has good acid stimulus response release characteristics, can realize matching of pesticide release time and pest occurrence period, reduces invalid release and premature loss of pesticides, prolongs the lasting period of the pesticides, reduces pesticide application times, and makes plant disease prevention and control more intelligent and precise. The loaded medicine not only exerts biological activity, but also is a main component of the composition material, and the reaction does not need heating, a non-inert environment, aging and an organic solvent, so that the preparation method is greener, simpler and more efficient, and is beneficial to popularization and application.

The invention discloses preparation and application of furoic acid and a bactericidal composition thereof, and relates to the technical field of biopesticides, the furoic acid comprises furoic acid, the chemical structural formula of the furoic acid is shown in the specification, the purity is greater than or equal to 98%, and the furoic acid is prepared by the following steps: mixing furfural, a sodium hydroxide aqueous solution and copper oxide, introducing oxygen at 50-60 DEG C, stirring and reacting for 4-6 hours, and filtering to obtain a filtrate; extracting, acidifying, recrystallizing and drying to obtain furoic acid; according to the preparation and application of the furoic acid and the bactericidal composition thereof, the furoic acid with a specific structure is scientifically compounded with screened specific biopesticides (kasugamycin, boscalid and ningnanmycin), and the ratio range (for example, the ratio of furoic acid to kasugamycin is 1: 10-10: 1) with a remarkable synergistic effect is optimized and determined; according to the composition disclosed by the invention, the components are effectively complemented on the action mechanism, and the defects that the traditional single pesticide is single in action target and easy to induce drug resistance are overcome, so that the overall control effect of the composition on various plant diseases (including bacteria, fungi and virus diseases) is remarkably improved.

The invention discloses a composite systemic bactericidal composition and application thereof in response to curved-surface water, fertilizer and pesticide regulation in pepper planting, and belongs to the technical field of pesticide bactericides. The composition is formed by compounding kasugamycin, chloroisobromine cyanuric acid and metalaxyl-hymexazol according to a specific mass ratio, water and fertilizer application parameters such as the irrigation amount, the fertilization amount and the pesticide application amount are optimized in combination with a response curved surface, cooperative prevention and treatment of pepper root rot are achieved, and water and fertilizer resources are efficiently utilized. The control effect is higher than that of a single agent, the dosage is small, and the bactericidal spectrum is expanded. The problems of resource waste and environmental pollution caused by a traditional large-water and large-fertilizer mode are remarkably relieved while high yield and high quality are guaranteed. The composite systemic bactericidal composition is applied to pepper planting response curved surface water, fertilizer and pesticide regulation, the pepper yield and the water and fertilizer utilization efficiency are improved, the disease index of root rot is remarkably reduced, and the contradiction between resource waste and frequent diseases in a traditional mode is solved.

This invention relates to a compound antibacterial agent and its application in open plant tissue culture. The active ingredients of the compound antibacterial agent include rifampin, kasugamycin, ticarcillin sodium clavulanic acid, and tetrachloroisophthalonitrile. The compound antibacterial agent can synergistically inhibit Agrobacterium rhizogenes or Rhodotorula glutinis, contaminating bacteria that are easily generated during plant tissue culture.

The invention provides a kasugamycin solution, and a preparation method and application thereof, and the solution is mainly prepared from the following raw materials by mass: 2-10% of kasugamycin; 0.01% to 0.05% of chitosan oligosaccharide; 0.05% to 0.3% of glucan; 0.05% to 0.2% of a bacillus licheniformis metabolite; 0.1%-0.3% of potassium phosphite; 0.05%-0.15% of polyglutamic acid; the total percentage is 100%. According to the kasugamycin solution, through a multi-channel synergistic effect, effective components are efficiently utilized, the lasting period can be remarkably prolonged, and the kasugamycin solution has urgent and important significance in promoting development of an agricultural green prevention and control technology.

According to the stable kasugamycin technical, the stable kasugamycin technical and the stable kasugamycin technical concentrate and the stable kasugamycin composition, the mass ratio of kasugamycin or salt of kasugamycin to protein in the kasugamycin composition or the protein content or polysaccharide content in the kasugamycin composition is controlled, and the kasugamycin composition has better stability in the aspects of smell, color appearance and / or hygroscopicity and the like; therefore, the method has remarkable beneficial effects in storage, freight and terminal application, and in addition, key substances influencing the stability are controlled to guide production and manufacturing, so that cost control is facilitated.

This invention relates to a nano-suspension containing thiazolium zinc and kasugamycin, wherein the mass ratio of thiazolium zinc to kasugamycin in the suspension is 7:1, and the particle size D90 of the suspension is 0.40 μm to 0.80 μm. The nano-suspension is prepared by thoroughly mixing thiazolium zinc technical, kasugamycin technical, necessary suspending agents, and water, followed by sand milling. In the suspension containing thiazolium zinc and kasugamycin prepared by this invention, the decomposition rate of kasugamycin is lower, and it is suitable for maintaining a low decomposition rate for extended periods in harsh environments.

The application discloses a microbial source bactericidal composition containing Leuconostoc mesenteroides WZ-44 and kasugamycin and application thereof. The bactericidal composition takes Leuconostoc mesenteroides WZ-44 fermentation liquor (or fermentation sterile filtrate) and kasugamycin as main effective components, wherein the mass ratio of the Leuconostoc mesenteroides WZ-44 fermentation liquor (or fermentation sterile filtrate) to the kasugamycin is 4999:1-99:1, and is further preferably 1499:1-499:1. The bactericidal composition shows a synergistic effect within the above-mentioned ratio range, overcomes and delays drug resistance of pathogenic bacteria, has a good prevention and control effect on pear fire blight, a long effective period and low application cost, is obviously superior to a single agent in the prevention and control effect, and greatly reduces the use amount of the kasugamycin.

The invention relates to the technical field of pesticide bactericides, and discloses a composition containing meconazole and phenazino-1-carboxylic acid, and the composition is obtained by reasonably compounding meconazole and phenazino-1-carboxylic acid. The composition disclosed by the invention is applied to crops, the applied composition not only can be fully absorbed by the crops, but also can be used for preventing and controlling diseases of the crops through two action mechanisms at the same time, so that the composition has good synergistic and persistent effects, and the prevention and control effect of the composition is higher than that of a single substance; according to the composition, the dosage of chemical pesticides can be remarkably reduced, the residual quantity of the chemical pesticides on crops is reduced, the pollution to the environment is reduced, the generation of drug resistance of diseases can be effectively avoided, the action duration of the composition is prolonged, and the composition has a good prevention and treatment effect. The compound can be widely applied to the field of agricultural bactericides and has a wide application value.

The present invention relates to agrochemical combinations, compositions and methods for controlling phytopathogenic infestation. Particularly, the present invention relates to controlling phytopathogenic infestation using kasugamycin. Also, the present invention relates to combination or composition comprising kasugamycin and one or more insecticidal agents / fungicidal agents for controlling bacterial infestation or agent transmitting bacterial infestation and diseases caused thereby in a crop or a part thereof, particularly a cereal crop and methods of using the same.

This invention relates to the field of kasugamycin production technology, specifically disclosing a kasugamycin fermentation culture medium and a kasugamycin fermentation method. The fermentation basal culture medium and the supplemental culture medium are composed of the following components by volume percentage: 5-8% soybean meal, 0.1-0.5% sodium glutamate, 0.26-0.5% potassium dihydrogen phosphate, 0.25-0.5% corn steep liquor, 7-9% soybean oil, and 1-3% maltodextrin. The supplemental culture medium consists of 0.5-1.6% soybean meal and 0.1-0.3% inositol. This invention, by optimizing the basal culture medium formula and combining it with the addition of soybean meal and inositol in the middle and late stages, effectively increases the fermentation potency of kasugamycin. Simultaneously, it avoids the problem of increased fermentation broth viscosity and impaired dissolved oxygen transfer caused by an unreasonable carbon-nitrogen ratio in traditional fermentation processes. It significantly reduces the viscosity of the fermentation broth, improves oxygen supply, and is beneficial for cell growth and the synthesis of secondary metabolites.

The invention discloses a bactericidal composition for preventing and treating gray mold and application thereof, and belongs to the technical field of pesticides. The effective components of the bactericidal composition disclosed by the invention are the flurobixafen and the zhongshengmycin, wherein the mass ratio of the flurobixafen to the zhongshengmycin is (2-9): 1. The Zhongshengmycin and the chlorine fluorine bixafen are compounded for preventing and treating the gray mold, so that the pesticide dosage is reduced during use, the prevention and treatment cost is reduced, the generation of pathogenic bacterium resistance is delayed, and the pollution to the environment is reduced.

The chitinase 3-like 1 (CHI3L1) inhibitor, specifically kasugamycin, provided by the present invention, suppresses the expression or activation of chitinase 3-like 1 (CHI3L1), thereby effectively preventing or treating infections with acid-fast bacteria, particularly non-tuberculous mycobacteria and various diseases caused by infection with acid-fast bacteria, particularly nontuberculous mycobacteria. In addition, by measuring the expression level of chitinase 3-like 1 (CHI3L1) protein, when the expression level is higher than that of a control group, it is possible to effectively predict infection with acid-fast bacteria, particularly non-tuberculous mycobacteria, the onset of diseases caused by infection with acid-fast bacteria, particularly non-tuberculous mycobacteria, or the prognosis of diseases related to infection with acid fast bacteria, particularly nontuberculous mycobacteria.

A fungicidal composition, the fungicidal composition comprising a component A, the component A comprising a cyclic ester peptide gold basidiosin A or a stereoisomer thereof; and a component B, wherein the component B comprises spring daily mycin or natamycin. A method of controlling or preventing a phytopathogenic disease or a phytopathogenic fungus on a plant or on propagation material thereof, the method comprising applying the composition to the plant, locus or propagation material thereof. The invention also relates to the use of the composition as a fungicide.

The present invention relates to a crystal form I of an agricultural antibiotic kasugamycin hydrochloride and a composition of the crystal form I and kasugamycin acetamide. The crystal form I shows good stability in a high-temperature, high-humidity, and illumination environment, and shows an unexpected plant disease prevention and treatment effect while better meeting the requirements of pesticides in production, processing, and transportation and storage.

The invention belongs to the field of agricultural chemistry, and particularly relates to a biological source bactericide and application thereof. The active ingredients of the bactericidal composition comprise zhongshengmycin and magnolol, and the weight ratio of zhongshengmycin to magnolol is (1: 20)-(5: 1). The bactericide provided by the invention belongs to a biological source bactericide and is environment-friendly, and the combination of the active components has an obvious synergistic effect, so that the dosage of the bactericide can be reduced, and the generation of drug resistance of diseases can be delayed.

The invention discloses cucumber nanoparticles and an extraction method and application thereof, and the extraction method comprises the following steps: crushing cucumber leaves in a two-leaf one-core stage, adding n-butyl alcohol, soaking for 30 minutes, and removing chlorophyll; soaking with ethanol for 10 minutes, drying, and weighing the powder; adding a certain amount of dimethyl sulfoxide into the powder, mixing, performing ultrasonic treatment for 10 minutes to obtain cucumber stock solution, centrifuging for 10 minutes, and taking supernatant to obtain the nano particles. And mixing kasugamycin and the cucumber leaf nano-particles, dropwise adding the mixture and sterile water into a beaker at the same time, keeping an ultrasonic state in the whole process, and obtaining a drug-loaded cucumber leaf nano-particle solution after ultrasonic treatment is completed. The extraction method provided by the invention is convenient and effective, the extraction purity is high, and the drug-loaded cucumber nanoparticles can improve the bacteriostasis rate of kasugamycin in inhibiting cucumber botrytis cinerea.

The invention relates to the technical field of chemical synthesis and application, in particular to a 1, 4-naphthoquinone derivative and a preparation method and application thereof. The 1, 4-naphthoquinone derivative is prepared by carrying out mercaptan addition on sulfydryl of a sulfydryl-containing compound and 1, 4-naphthoquinone at a site 2, the preparation method is simple, antibacterial activity results show that the prepared 1, 4-naphthoquinone derivative has antibacterial activity on xanthomonas oryzae, pseudomonas syringae and ralstonia solanacearum, and the antibacterial effect is higher than that of kasugamycin.

This invention relates to a streptomycin-producing strain and its application, wherein the strain is Streptomyces. Streptomyces sp. ZS-2 has good activity in producing kasugamycin, and its fermentation products have higher antibacterial activity and a wider antibacterial range.

This invention relates to a streptomycin-producing strain and its application, wherein the strain is Streptomyces. Streptomyces sp. ZS-1 has good activity in producing kasugamycin, and its fermentation products have higher antibacterial activity and a wider antibacterial range.

The invention relates to the technical field of pesticide bactericides, and discloses a composition containing meconazole, kasugamycin and derivatives thereof, the composition is obtained by reasonably compounding meconazole, kasugamycin and derivatives thereof, the composition is applied to crops, the crop yield is increased, and the crop yield is increased. The applied composition not only can be well absorbed by crops, but also can be used for effectively preventing and controlling diseases of the crops through two antibacterial mechanisms, has excellent synergistic and persistent effects, is higher than a single agent in prevention effect, and can be used for remarkably reducing the dosage of chemical pesticides, reducing the residual quantity of the pesticides on the crops and alleviating environmental pollution; and moreover, the generation of drug resistance of diseases can be effectively avoided, the action duration of the composition is prolonged, the bactericidal spectrum is expanded, and a good prevention and treatment effect is achieved.

This invention relates to the field of pesticide technology, specifically to a soluble concentrate containing kasugamycin and its preparation process. By mass percentage, the raw materials for preparation include at least 0.1-8% kasugamycin, 0.1-30% plant growth regulators, 1-8% surfactants, 0.1-2% pH adjusters, 5-40% stabilizers, and deionized water to make up the balance. Specifically, this invention uses a combination of orthosilicic acid and kasugamycin. By controlling the amount of orthosilicic acid added to the soluble concentrate to 1-3 wt%, the mass ratio of kasugamycin to orthosilicic acid is (2-4):(1-3). This ensures product stability while achieving effective control of rice blast disease, exhibiting control effects no less than conventional agents such as tricyclazole and isoprothiolane, and with relatively lower pesticide residues compared to these agents, effectively improving rice quality and ensuring the safety of agricultural products.

The utility model discloses a kasugamycin preparation normal temperature storage device which comprises a storage tray, round supporting grooves are evenly formed in the upper end face of the storage tray, vertical rods are installed at the four corners of the upper end of the storage tray, grooves are formed in the four corners of the bottom of the storage tray, and when the two storage trays are stacked up and down, the vertical rods are connected with the grooves. And the four vertical rods on the lower storage tray are respectively inserted into the four grooves in the bottom of the upper storage tray. According to the kasugamycin preparation storage tray, the storage tray is adopted to replace a paper packaging box to store the kasugamycin preparation, the storage tray is simple after being used, the kasugamycin preparation can be placed in order and can also be stacked and stored, the whole storage tray can be repeatedly used, the kasugamycin preparation in the storage tray can be directly placed in the paper packaging box when leaving a factory, and the kasugamycin preparation storage tray is convenient to use. And the problem caused by the adoption of a paper packaging box during storage is avoided.

The invention relates to a sterilization composition and application thereof, in particular to the field of pesticides, the effective active ingredients of the sterilization composition are kasugamycin and copper citrate, and the weight ratio of the kasugamycin to the copper citrate is 1: 1-1: 10. The bactericidal composition expands the antibacterial spectrum, improves the pesticide effect, prolongs the lasting period, reduces the dosage, saves the economic cost, reduces the environmental pollution, is small in residual quantity, and has a very good treatment effect on occurred diseases.

The invention discloses preparation of pyrrole peptide and application of the pyrrole peptide in agriculture, and relates to the field of application of the pyrrole peptide in agriculture, the preparation of the pyrrole peptide and the application of the pyrrole peptide in agriculture are obviously different from traditional chemical pesticides through the application of the pyrrole peptide in agriculture, and the problem of environmental pollution is effectively reduced. Pyrrole peptide is used as a bioactive compound, shows high efficiency in plant disease control, is good in biodegradability, and reduces pollution risks of soil, water sources and air. Through comparison of embodiments 2 to 4, the control effect of the pyrrolopeptide on tobacco mosaic virus, tomato gray mold and rice bacterial leaf blight under different concentrations is superior to that of traditional chemical pesticides, such as amino-oligosaccharin, carbendazim and kasugamycin. The pyrrole peptide is not only environment-friendly, but also remarkable in effect in practical application, and provides powerful support for development of green agriculture.