33 results about "Downy mildew" patented technology

The invention discloses a vegetable disease incubation period detection method and system based on bimodal time sequence collaborative fusion, and the method comprises the steps: obtaining a leaf image through building an acquisition environment, constructing a training sample data set, and constructing a downy mildew incubation period spectral feature adaptive enhancement (AW-FPF) module; the method comprises the following steps: decomposing a hyperspectral signal into low-frequency and high-frequency components through spectrum time sequence adaptive wavelet decoupling, obtaining an enhanced feature tensor through spectrum multi-scale pathological feature frequency-time dual-path aggregation fusion frequency domain and time domain paths, and obtaining a first feature sequence through weighted screening by using a multi-head attention mechanism; a downy mildew incubation period prediction (HyChl-TFNet) model containing a hyperspectral branch, a chlorophyll fluorescence parameter branch, a feature fusion branch and a classifier is constructed, bimodal features are processed and fused to output a day number prediction result, accurate recognition of the downy mildew incubation period is achieved, the detection precision can be controlled to the day number level, and the detection accuracy is improved. And an accurate time basis is provided for early prevention and control of diseases.

The invention discloses bacillus megaterium and application thereof in prevention and treatment of cucumber downy mildew. The bacillus megaterium ZF521 for preventing and treating the cucumber downy mildew, provided by the invention, has the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.31036 in the General Microbiological Culture Collection Center of the China Committee for Culture Collection of Microorganisms. A potted living body test shows that the highest prevention and treatment effect of the bacillus megaterium on the cucumber downy mildew can reach 72.62%, meanwhile, the bacillus megaterium CGMCC No.31036 can promote the increase of the content of three endogenous hormones in the cucumber, and the bacillus megaterium CGMCC No.31036 is applied to the cucumber, so that the cucumber downy mildew can be effectively prevented and treated, and the growth of the cucumber is promoted.

This invention relates to the field of pesticide technology, specifically to a fungicidal composition, its preparation method, and its uses. The invention provides a fungicidal composition comprising an active ingredient, a first functional component, a second functional component, and an adjuvant; the active ingredient comprises fluthiazopyrone and cyazofamid; the first functional component comprises at least one selected from silica, titanium dioxide, and zinc oxide; the second functional component comprises at least one selected from citric acid, acetic acid, benzoic acid, urea, and triethanolamine. By introducing specific first and second functional components, this invention synergistically works with the active ingredient, effectively overcoming the key defects of fluthiazopyrone's easy photodegradation and cyazofamid's easy hydrolysis, thus improving the stability of the compound formulation; while ensuring the excellent control efficacy and resistance management advantages of both against oomycete diseases such as grape downy mildew, it extends the duration of action and weather resistance of the agent, providing a more stable, efficient, and long-lasting solution for field application.

The present application relates to a kind of phenyl-tetrazole oxime derivatives and its preparation method and application, wherein the phenyl-tetrazole oxime derivatives have the structure as shown in formula (I), wherein R 1 , R 2 , T, R a , R b , R c , R d , R e Have the meaning described in the present application;The phenyl-tetrazole oxime derivatives described in the present application have excellent prevention effect on cucumber downy mildew, rice sheath blight, cucumber gray mold, cucumber powdery mildew and the like, and can be further developed as a fungicide for application.

The application relates to a pesticide composition containing silicon-rich rings and thiamethoxam and application thereof in prevention and treatment of downy mildew, and belongs to the technical field of agricultural pesticides. In the application, heat-sensitive silicon-rich ring raw medicine is coated with a capsule wall material to form microcapsules, so that the chemical stability of the active ingredient in the storage process is effectively improved. The results of potting test show that the branch number, effective branch number and fruiting number of the pepper plants treated with the pesticide composition are significantly higher than those of the single-dose treatment group, which indicates that the pesticide composition can promote the vegetative growth and reproductive growth of the pepper, help to build a high-yield plant type, and improve the yield potential of crops. Field test data show that the prevention and treatment effect of the pesticide composition on the pepper downy mildew reaches 90.2%, which is significantly better than that of the single-dose treatment group. This indicates that the combination of the silicon-rich rings and thiamethoxam plays a synergistic effect in the prevention and treatment of the pepper downy mildew.

The utility model discloses a downy mildew spore collecting device which comprises a holding assembly, a collecting assembly, a filtering assembly, a catching assembly and a suction assembly, and the holding assembly is sequentially provided with a filtering bin, a catching bin, an air pump bin and a holding part from front to back; the filtering assembly is installed in the filtering bin, the capturing assembly is installed in the capturing bin, the suction assembly is arranged in the air pump bin, the collecting assembly is installed in front of the filtering assembly, and the suction assembly is electrically connected with the power source. According to the device, the holding assembly, the collecting assembly, the filtering assembly, the capturing assembly and the suction assembly are integrated, so that efficient collection of downy mildew spores is achieved. Due to the innovative structural design, the collecting process is quicker and more convenient, and the collecting efficiency is remarkably improved. According to the device, the combination of the filtering assembly and the capturing assembly is adopted, the collection concentration of sporangium is effectively improved, an additional centrifugal concentration step is not needed, the operation process is simplified, and time and cost are saved.

This invention relates to a new and distinct variety of grapevine plant named ‘IVC AN1’. The new variety is primarily adapted to the growing conditions of the temperate or dry areas, e.g. southern Italy, with low rainfall and low disease pressure (namely downy mildew), with winter minimum temperatures down to 10° C., and is characterized by attractive berries with vivid greenish yellow color which are uniform in size and shape and are firm with tender crunchy skin.

This invention relates to the field of pesticides, specifically to a fungicide composition for foliar spraying, its preparation method, and application scheme. The active ingredients of the fungicide composition include quinoline copper and phosphite A. Phosphite A is selected from at least one of phosphorous acid, alkali metal salts or alkaline earth metal salts of phosphorous acid, alkylphosphonic acids containing C1-C6 groups of phosphorous acid or alkali metal salts of alkylphosphonic acids, alkaline earth metal salts, and aluminum salts. In the fungicide composition, the weight ratio of quinoline copper to phosphite A is 99:1 to 1:99. The fungicide composition of this invention has high activity against bacterial and fungal diseases occurring in various crops, such as canker and downy mildew, and also exhibits significant synergistic effects. It not only improves the antibacterial or bacteriostatic effect but also broadens the control spectrum. Simultaneously, it can reduce the number of applications and alleviate environmental pressure, thereby achieving the effect of prevention-oriented and integrated pest management.

The application discloses a bacillus thuringiensis and application thereof. The bacillus thuringiensis ZF505 provided by the application has a preservation number of CGMCC No.24585 in the China General Microbiological Culture Collection Center. A potting living body test shows that the bacillus thuringiensis can prevent and treat cucumber downy mildew with a highest effect of 73.01%, and the bacillus thuringiensis CGMCC No.24585 can promote the increase of the content of three endogenous hormones of cucumber, wherein gibberellin is increased by 15.61%, indole acetic acid is increased by 5.05%, and zeatin is increased by 5.12%.

The invention belongs to the technical field of microorganisms, and particularly relates to grape endophytic fungi NZ1-b-1 and application thereof in prevention and treatment of grape diseases. The grape endophytic fungus NZ1-b-1 is classified and named as subclavian endophytic fungus and is preserved in the China Center for Type Culture Collection on July 14, 2025, and the preservation number of the grape endophytic fungus NZ1-b-1 is CCTCC (China Center for Type Culture Collection) NO: M 20251604. The grape endophytic fungi NZ1-b-1 provided by the invention are endophytic fungi separated from grape leaves, the culture method is simple, the cost is low, and the separation method is easy to operate. The grape endophytic fungus NZ1-b-1 has an antibacterial effect on grape botrytis cinerea and white rot fungi, has a relatively high prevention and treatment effect on grape gray mold and white rot, has a certain prevention and treatment effect on grape downy mildew, and has the potential of being developed into a broad-spectrum antibacterial agent for grape fungal diseases.

The invention discloses a hymexazol and sodium trichloroisocyanurate compounded bactericidal composition, which takes hymexazol and sodium trichloroisocyanurate as main active ingredients, and the mass ratio of hymexazol to sodium trichloroisocyanurate is (1: 1)-(200: 1); the bactericidal composition further comprises 1, 3-propane sultone; the ratio of the total amount of hymexazol and sodium trichloroisocyanurate to the mass of 1, 3-propane sultone is (30: 1)-(90: 1). The invention also discloses application of the bactericidal composition in prevention and treatment of downy mildew, fusarium wilt, damping off and black spot of plants. Compared with a single agent of hymexazol, the bactericidal composition provided by the invention can improve the problem that hymexazol is easy to generate resistance, and widens the application range of the agent. The bactericide composition can replace some high-toxicity bactericides, the dosage is reduced, the environment is protected, and meanwhile pesticide residues are reduced. According to the invention, 1, 3-propane sultone is used as a synergist, so that the pesticide effect is enhanced.

The invention relates to a compound microorganism bacterium agent for preventing and treating grape downy mildew. The compound microorganism bacterium agent comprises streptomyces rochei HML17 of which the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.34955 and bacillus subtilis HM-1 of which the preservation number is CGMCC No.21752. The invention also relates to a preparation method of the compound microorganism bacterium agent for preventing and treating the grape downy mildew. The invention also relates to a preparation method and application of the compound microbial agent. The compound microbial agent disclosed by the invention can be used for effectively preventing and treating grape downy mildew, improving the micro-ecological environment of soil, promoting the growth of plants and increasing the yield and income of grapes by matching two modes of spraying and root application.

The application discloses a grape downy mildew adaptive image enhancement and detection integrated method based on Bayesian optimization, and comprises the following steps: acquiring a grape canopy visible light image collected by a UAV; and performing adaptive image enhancement processing on the grape canopy visible light image to obtain an enhanced image; wherein the adaptive image enhancement processing adopts a combination mode of power intensity mapping and an unsharp mask, and the execution sequence of the two enhancement modes and the hyperparameters thereof are adaptively determined in a two-stage process through Bayesian optimization; and the enhanced image is input into a trained GDM-DETR detection model to obtain grape downy mildew detection results, wherein the results comprise the category and the bounding box position of a disease target; the application not only improves the accuracy and real-time performance of the model in detecting grape downy mildew, but also reduces the number of model parameters and the calculation complexity.

The present invention aims to provide spinach plants that are resistant to downy mildew. [Solution] The present invention provides a spinach plant including a spinach plant or its progeny line identified by accession number FERM BP-22502 or FERM BP-22503. The spinach plant of the present invention exhibits resistance to downy mildew, preferably to one or more selected from downy mildew races Pfs2, Pfs4, Pfs5, Pfs6, Pfs7, Pfs10, Pfs11, Pfs12, Pfs13, Pfs14, Pfs15, Pfs16, Pfs17, Pfs18, and Pfs19.

The application discloses a method and system for constructing a cucumber leaf health state detection model, and relates to the technical field of agricultural intelligence, and alleviates the problems that in the existing cucumber leaf health state detection technology, it is difficult to form a compact and high-discrimination feature set, and after feature fusion, the phenomenon of information "mutual offset" or "noise superposition" occurs, and the recognition accuracy of the cucumber leaf health state is low. The most representative features are obtained through extraction and screening of various texture features and color indexes, and then a heterogeneous multi-modal fusion model is constructed to effectively process multi-modal data including texture images and color index images, so that a cucumber leaf health state detection model is obtained, and the model can accurately detect the health / disease state of the cucumber leaf. The method disclosed by the application is suitable for the field of detecting the health, downy mildew and powdery mildew of the cucumber leaf.

The present application relates to a kind of oxime derivatives and its preparation method and application in agriculture, wherein the oxime derivative has the structure as shown in formula (I), (I), wherein R a , R b , R c , R d And R e Each independently is hydrogen, halogen etc.;T is tetrazolyl;A is substituted or unsubstituted phenyl;R 1 C 1‑6 Alkyl;The oxime derivative of the present application has excellent prevention effect on cucumber downy mildew, rice sheath blight, cucumber gray mold, cucumber powdery mildew and the like, and can be further developed as a fungicide for application.

The invention provides a pyrazole compound and a preparation method and application thereof.The pyrazole compound has the structure shown in the formula I. The pyrazole compound has a remarkable effect on prevention and treatment of diseases in agriculture and forestry, especially has a good prevention and treatment effect on cucumber powdery mildew, cucumber downy mildew, soybean rust and rice blast, and is wide in application prospect.

The present invention is a downy mildew resistant spinach plant having the downy mildew resistance RTM-1 gene present on chromosome 4 of the tetra spinach line CGN25466:MGK 01; the above recited downy mildew resistant spinach plant wherein the RTM-1 gene is a gene present on chromosome 4 of the tetra spinach line CGN25466:MGK 01 in the range of chr4_7962907 to chr4_8617232; the downy mildew resistant spinach plant of any one recited having resistance to at least race Pfs1, Pfs2, Pfs3, Pfs4, Pfs5, Pfs6, Pfs7, Pfs8, Pfs9, Pfs10, Pfs11, Pfs12, Pfs13, Pfs14, Pfs15, Pfs16, Pfs17, Pfs18, Pfs19, and UA1014 race exhibited by the Pseudoperonospora farinosa f. sp. esculenta strains.

The application discloses a pesticide application method based on a grapevine downy mildew prediction model, relates to the technical field of agricultural plant protection, and mainly aims to provide a pesticide application method based on a grapevine downy mildew prediction model, which can dynamically simulate a complete disease epidemic process from overwintering inoculum release to secondary cycle establishment. The application provides a pesticide application method based on a grapevine downy mildew prediction model, which directly outputs an infection risk early warning through the prediction model, helps to reduce the use frequency and dosage of pesticides, reduces the cost and environmental risk, and meanwhile, can be calibrated locally according to different regions or varieties. The construction framework can also provide a reference for the development of other air-borne and rain-borne fungal disease prediction models, and then a mechanism model capable of dynamically simulating a complete disease epidemic process from overwintering inoculum release to secondary cycle establishment is constructed, so that the technical effect of improving the prediction accuracy is achieved.

This application relates to a hydrazine carbamate compound, its preparation method, and its uses. The hydrazine carbamate compound is a compound of formula (I) or formula (II), or an isotopically labeled compound thereof, or an optical isomer, geometric isomer, tautomer, or mixture of isomers thereof, or a pharmaceutically acceptable salt thereof. The hydrazine carbamate compounds provided in this application exhibit broad-spectrum antibacterial activity against plant pathogens such as pathogenic fungi, particularly against *Tobacco Red Spot*, *Chinese Cabbage Black Spot*, *Tomato Early Blight*, *Apple Anthracnose*, *Curvularia*, *Wheat Fusarium*, *Watermelon Fusarium*, *Potato Dry Rot*, *Rice Blast*, *Pumpkin Fusarium*, *Cotton Fusarium*, *Apple Ring Spot*, *Apple Rot*, *Grape Downy Mildew*, and *Melon Powdery Mildew*. (I) (II).

The invention discloses an agricultural bactericidal composition for preventing and treating cucumber downy mildew, a preparation and application of the agricultural bactericidal composition and the preparation. The agricultural bactericidal composition disclosed by the invention is prepared from pyrazamide and fluopicolide. According to the bactericidal composition, the mass ratio of the pyrazamide to the fluopicolide is (4: 1)-(1: 4), the synergistic interaction effect can be achieved, and the bactericidal composition is environmentally friendly, economical and good in prevention and treatment effect on cucumber downy mildew.

A method for greenhouse cucumber planting by using perilla straw filling and its application belong to the technical field of plant disease control. In order to solve the problems of soil compaction, poor quality and downy mildew disease of greenhouse cucumber planting, the perilla straw is reasonably filled into the soil after the autumn harvest of greenhouse cucumber, the nutrient components rich in perilla straw are effectively utilized to increase soil fertility, improve organic matter content, improve soil structure, enhance plant growth, effectively prevent and control the occurrence of cucumber downy mildew, and improve the yield and quality of cucumber, which provides effective technical support for the ecological cultivation of greenhouse cucumber. At the same time, the problems of resource waste caused by improper treatment and random disposal of perilla straw, and a large amount of pollutants produced by burning, which harm the air quality, are solved.

The invention discloses a phenyl oxadiazole compound. The structure of the phenyl oxadiazole compound is shown as a general formula I, wherein each substituent group in the formula is defined in the specification. The compound provided by the invention has excellent bactericidal activity, and has excellent prevention and treatment effects on powdery mildew, downy mildew, rust disease and the like.

The present application relates to a kind of fungicidal compositions containing famoxadone and carvacol, and the effective component is the binary complex of famoxadone and carvacol.The mass ratio of famoxadone and carvacol is 1-20:30-5, and the mass fraction ratio of effective component famoxadone and carvacol in preparation is 6%-50%.The dosage form of the fungicidal composition described in the present application is emulsifiable concentrate, suspension concentrate, water emulsion, microemulsion and water dispersible granule.The fungicidal composition is suitable for preventing and treating various powdery mildew, rust, leaf blight, net blotch, downy mildew, early and late blight of fruit trees, vegetables, ornamental plants, crops, etc., and has good protective and curative effects on early and late blight of tomato, etc.

The present invention relates to a spinach plant comprising a gene or a locus that results in a broad spectrum of resistance to Peronospora diffusa (Pe). The invention also relates to progeny of said spinach plant, propagation material of said spinach plant, cells of said spinach plant, seeds of said spinach plant and harvested leaves of said spinach plant. The invention also relates to the use of said spinach plant to confer resistance against downy mildew in breeding. The present invention also relates to a method of producing a spinach plant having a broad spectrum resistance against Peronospora dispersa (Pe).

The invention belongs to the technical field of agricultural breeding, and particularly relates to a method for improving a new variety of Chinese cabbage through pulsed light irradiation treatment and application of the method. Specifically, the pulsed light irradiation treatment technology is applied to the Chinese cabbage breeding aspect, the defects of an existing Chinese cabbage breeding technology are overcome, the Chinese cabbage seed production purity is improved by optimizing pulsed light treatment parameters, meanwhile, the downy mildew resistance of Chinese cabbages is enhanced, the breeding period is shortened, the breeding cost is reduced, and chemical residues and biological safety risks are avoided. The invention provides a new method for cultivating a Chinese cabbage variety with high seed production purity and downy mildew resistance, and a new Chinese cabbage strain with high quality, high yield and strong disease resistance can be obtained. The method is suitable for germplasm innovation, conventional breeding and modern vegetable new variety cultivation, so that the method has important scientific research and economic values.

The present application discloses Chinese cabbage HSK kinase, its coding gene BraDMR1 and application, and belongs to the technical field of genetic engineering breeding. The present application provides application of HSK kinase or a substance for regulating expression of the coding gene of the HSK kinase or a substance for regulating activity or content of the HSK kinase in regulating downy mildew resistance of plants, wherein the HSK kinase is a protein with an amino acid sequence of SEQ ID No. 2. The present application also provides a method for regulating downy mildew resistance of plants, which comprises regulating disease resistance of plants by regulating expression of the coding gene of the HSK kinase or regulating activity or content of the HSK kinase. The BraDMR1 gene is expected to be used in genetic engineering breeding, and a material with enhanced downy mildew resistance can be obtained after knocking out the BraDMR1 gene in an intermediate material in breeding.

The application discloses a soybean immune negative regulation gene trehalase GmTRE, a coding protein thereof and application, and belongs to the technical field of crop genetic breeding. The technical problem to be solved by the application is how to improve the resistance of soybean to soybean downy mildew. To solve the above technical problem, the application provides application of a protein or a substance for regulating expression of a gene or a substance for regulating activity or content of the protein in regulation of the resistance of a plant to soybean downy mildew, and the GmTRE protein is a protein with an amino acid sequence shown in sequence 1 in the sequence listing. The application provides use of the GmTRE protein in genetic improvement breeding of soybean disease-resistant germplasm resources, and has a good application prospect.