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76 results about "Pythium aphanidermatum" patented technology
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Pythium aphanidermatum is a soil borne plant pathogen. Pythium is a genus in the class Oomycetes, which are also known as water molds. Oomycetes are not true fungi, as their cell walls are made of cellulose instead of chitin, they are diploid in their vegetative state, and they contain coenocytic hyphae (lacking crosswalls), called a protist. Also, they reproduce asexually with motile biflagelette zoospores that require water to move towards and infect a host. Sexually, they reproduce with structures called antheridia, oogonia, and oospores.
Organic liquid fertilizer containing chitosan
ActiveCN103011988AImprove the environmentPromote growthFertilizer mixturesAdditive ingredientInsect pest
The invention relates to an organic liquid fertilizer containing chitosan. The organic liquid fertilizer comprises the chitosan, humic acid, fulvic acid, phosphorus pentoxide, potassium hydroxide, boric acid, edetic acid, zinc sulphate, manganese sulfate monohydrate, glycine, glutamic acid, serine and lysine. Aqueous extract of traditional Chinese medicines is added into the organic liquid fertilizer. As various marine bioactive ingredients such as the chitosan are added into the organic liquid fertilizer, the organic liquid fertilizer can be used for culturing a great quantity of effective microbial communities of actinomycetes and the like within short time after being applied to soil. Antibiotics and other substances secreted from the effective microbial communities can inhibit harmful microbial communities of pythium aphanidermatum, rhizoctonia and the like, and thus a microbial environment of the soil can be improved rapidly. The chitosan also can be used for accelerating the growth of root systems and the combination of the root systems and the soil. In addition, as the aqueous extract with insecticidal efficacy of the traditional Chinese medicines is added into the organic liquid fertilizer, plant diseases and insect pests of leaf surfaces can be effectively reduced when the fertilizer is applied to the leaf surfaces.
Owner:QINGDAO JINGLING OCEAN TECH
Bacillus atrophaeus strain DPPG-28 and application in crop disease control
InactiveCN104531545AImprove germination rateIncreased fresh weightBiocideBacteriaDry weightDrip irrigation
The invention discloses a bacillus atrophaeus strain DPPG-28 and an application in crop disease control, and belongs to the field of agricultural biotechnology. The strain is separated from soil of drip irrigation fields with damping off in tomato processing production areas, and has an accession number of CGMCC No. 9394. The strain can be used for biological control of crop pathogens such as rhizoctonia solani, pythium aphanidermatum, alternaria solani, phytophthora capsici, tomato scab fungi, and the like; the control effects on tomato damping off, capsicum early blight, and cotton damping off reach respectively 74.17%, 66.83%, and 70.12%; the strain can significantly improve the crop germination rate, plant height, fresh weight, and dry weight at the seedling stage. The strain of the invention has high-efficient wide-spectrum germicidal activity, and has wide application prospects in biocontrol agents.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1
Method for inhibiting plant pathogenic bacteria by using Eupatorium adenophorum juice
InactiveCN101011070AEnhanced inhibitory effectImprove sterilization abilityBiocideDead animal preservationNicotiana tabacumPathogenic bacteria
The invention relates to a method for using nothosmyrnol eupat juice to restrain the plant pathogenic bacteria. The invention uses water to break the fresh nothosmyrnol eupat and takes off the juice to be sprayed on the plant, or else, the invention immerges the nothosmyrnol eupat with the water at the volume ratio as 5:1, takes off the upper clean solution to be diluted by water while the volume ratio is 1:1, to be sprayed on the plant. Said pathogenic bacteria can be notoginseng ring spot, root rot, or the like. The invention has strong restrain and disinfection functions.
Owner:YUNNAN NORMAL UNIV
Aniseed essential oil for inhibiting plant pathogenic fungi and preparing method thereof
The invention relates to a botanical essential oil for the control of plant pathogenic fungus and a preparation method thereof. The essential oil of the invention is extracted from star aniseseen fruits and contains 29 main ingredients through gas chromatography-mass spectrometry analysis, wherein, trans-anethole accounts for 83.483 percent. The invention first confirms that the trans-anethole is the main antibacterial active ingredient in the essential oil from the star aniseseen as well as the essential oil from the star aniseseen and the trans-anethole thereof has significant inhibition activity for a plurality of plant pathogenic fungus such as early blight of tomato, stem end rot of mango, corn leaf blight, wheat scab, cucumber fusarium wilt, tomato fusarium wilt, cotton fusarium wilt, rice blast fungus, pythium aphani-dermatum, wheat sheath blight, rice sheath blight, etc. and can control plant diseases.
Owner:CHINA AGRI UNIV
Goffer pseudomonas P94 and application thereof
InactiveCN101012443AIncrease productionGood preventive effectBiocideBacteriaBacteroidesPhospholipase
The invention discloses a new Pseudomonas corrugate strain (P94 GMCC No.1895), which is characterized by the following: manufacturing relative HCN to prevent bacteria, proteinase and phospholipase and IAA; inhibiting partial plant pathogenic fungus (Botrytis cinerea, Ceratocystis fimbriata, Monilinia laxa, Magnaporthe grisea, Pythium aphanidermatum and Phytophthora capsici) and partial pathogenic bacteria (Pseudomonas syringae, Acidovorax avenae and Ralstonia solanacearum); accelerating the growth of tomato and cucumber to improve production by 22%-28%.
Owner:CHINA AGRI UNIV
Sterilizing composite containing captan
ActiveCN102696646AImprove securityMeet safety requirementsBiocideFungicidesSuspending AgentsSheath blight
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.
Owner:SHAANXI SUNGER ROAD BIO SCI
Trichoderma citrinoviride and application thereof
The invention relates to a trichoderma citrinoviride P-T 7987 strain, which is preserved in China General Microbiological Culture Collection Center and is assigned the accession number CGMCC No.10646. The trichoderma citrinoviride P-T 7987 is strong in habitat adaptability, is high in growth speed, is high in sporulation quantity, can be used for inhibiting botrytis cinema, sclerotinia sclerotiorum, pythium aphanidermatum, phytophthora capsici and rhizoctonia solani, can be hyper-parasitized on hypha of the botrytis cinema, the sclerotinia sclerotiorum, the pythium aphanidermatum, the phytophthora capsici and the rhizoctonia solani to rapidly and effectively degrade the vegetable bacteria. The trichoderma citrinoviride P-T 7987 has a potential and developable biological prevention and treatment value.
Owner:INST OF MICROBIOLOGY - CHINESE ACAD OF SCI
Recombinant strain for expressing heterogenous Omega-3 desaturase in mortierella alpina and construction method thereof
The invention provides a recombinant mortierella alpina strain Ma-oPaFADS17 with heterologous expression coming from pythium aphanidermatum Omega-3 desaturase genes and a method for constructing the mortierella alpina strain with heterologous expression coming from pythium aphanidermatum Omega-3 desaturase genes. The method adopts mortierella alpine uracil auxotrophic strain CCFM 501 as materials and uses an agrobacterium tumefaciens mediated genetic manipulation technology to obtain a recombinant strain with a high yield of EPA in the environment of normal temperature, wherein the yield of EPA reaches 617.1 mg / L, and the content of the EPA accounts for 18.7 percent of the total amount of fatty acid, which has an important meaning for the basic research and product development of oil-producing fungus mortierella alpine.
Owner:JIANGNAN UNIV
Efficient peanut rhizobiumleguminosarum strain and application thereof
ActiveCN103571770AHas the ability to fix nitrogenEnhanced inhibitory effectBiocideBacteriaBiotechnologyRoot nodule
The invention relates to a novel rhizobiumleguminosarum strain, wherein the strain has high biological nitrogen fixation activity, has certain preventive and therapeutic effects on fungal diseases of plants and has good saline-alkaline resistance and high temperature resistance, so that the strain has functions of nitrogen fixation, disease prevention, stress resistance and yield increase. The rhizobiumleguminosarum is preserved in the China General Microbiological Culture Collection Center Committee on July 15, 2013 with a preservation number of CGMCCNo.7924. As shown in researches, the strain can nodulate on peanut roots and the strain has a good inhibitory effect on botrytis cinerea and pythium aphanidermatum and has saline-alkaline resistance and high temperature resistance.
Owner:河北浩海嘉农种业有限公司
Trichoderma and bacillus subtilis composite wettable powder
InactiveCN101926366APromote growthImprove the effect of prevention and controlBiocideFungicidesDiseasePlant disease
The invention discloses trichoderma and bacillus subtilis composite wettable powder, which is prepared by mixing 0.1 to 10 billion colony-forming unit (CFU) / gram of trichoderma, 1 to 300 billion CFU / gram of bacillus subtilis, 1 to 40 percent of dispersant, 1 to 40 percent of wetting agent and 5 to 98 percent of stuffing. The trichoderma and bacillus subtilis composite wettable powder is primarily used for controlling soil-borne diseases in vegetables and flowers and plants, has good control effects on root rot of the flowers and plants and damping-off and pythium aphanidermatum of the vegetables, avoids toxicity and residues and can be used for the production of organic foods.
Owner:BEIJING COWAY BIOWORKS BIOTECH
Method of preventing and treating parasitic weed orobanche coerulescens
ActiveCN105028486AAvoid pollutionLong-lasting control effectBiocideClimate change adaptationParasitic WeedsFermentation
The invention relates to a method of preventing and treating a weed, orobanche coerulescens, through an agricultural bio-degradable mulching film combined with biocontrol bacteria. The method includes the steps of preparing a fermentation liquid of pythium aphanidermatum, performing centrifugal, elution on a column and concentration to the fermentation liquid to prepare a pythium aphanidermatum powder, preparing the bio-degradable mulching film containing the pythium aphanidermatum powder, and paving the mulching film in the field on which crops and the orobanche coerulescens are grown. The method is excellent in preventing and treating effects, avoids pollution caused by chemical agents through the bio-controlling technology, and is more durable in the preventing and treating effects since the synergistic effects of the bio-degradable mulching film is combined.
Owner:新疆康润洁环保科技股份有限公司
Compound bactericidal composition containing fludioxonil
ActiveCN101669485AGood prevention effectOvercoming and delaying drug resistanceBiocideFungicidesDiseasePhytophthora sp.
The invention relates to a compound bactericidal composition containing fludioxonil and use thereof. The effective components of the composition are fludioxonil and hymexazol, the mass ratio of portions of fludioxonil and hymexazol is 20:1 to 1:50. The bactericidal composition has relatively strong synergistic action, widens disease prevention and treatment spectrum, can prevent germ from generating resistance or delay the development speed of resistance, prolongs the use life of the pesticide, and reduces the use cost and pesticide residue. The compound bactericidal composition can prevent and treat fusarium patch, rice seedling rot, pythium aphanidermatum, fusarium wilt, verticillium wilt, sclerotinia sclerotiorum, colletotrichum lagenarium, phytophthora blight, fusarium wilt, cladosporium cucumerinum, sclerotium erwinia carotovora, seedling blight, stem wilt and leaf blight, and is particularly suitable for preventing and treating crop soil diseases resulted from pathogen fungus such as fusarium graminearum schwabe, rhizoctinia, pythium aphanidermatum, seedling rot fusoma, phytophthora capsici and the like.
Owner:山东兆丰年生物科技有限公司
Pesticide composition, suspended seed coating and application thereof
InactiveCN106489948ADifficult to spread rapidlyReduce releaseBiocideDead animal preservationDiseaseBULK ACTIVE INGREDIENT
The invention provides a pesticide composition, a suspended seed coating and application thereof, and belongs to the technical field of pesticide preparations. Active ingredients of the pesticide composition comprise metalaxyl and azoxystrobin according to the mass ratio of 0.4-10: 0.5-3. The suspended seed coating contains 0.5-10% of fludioxonil, 1-15% of metalaxyl, 1-20% of azoxystrobin, 0.5-10.0% of a wetting dispersant, 0.1-10% of a film forming agent, 0.05-3.5% of a thickening agent, 1-10% of an antifreezing agent, 0.1-1% of a preservative, 0.05-0.5% of a defoamer, 1-10% of a coloring agent and the rest of water. The active ingredients of the pesticide composition and the suspended seed coating thereof have excellent inhibiting effect on pythium aphanidermatum and / or fusarium moniliforme, and can be used for preventing and controlling maize stalk rot, rice bakanae disease and damping-off, peanut seedling dry rot and root rot, cotton damping-off and blight.
Owner:JIANGSU SUBIN AGROCHEM
Extracting process of biocontrol strains and toxin of biocontrol strains and purposes of biocontrol strains and toxin of biocontrol strains
InactiveCN102517219AGrowth inhibitionReduce the cost of prevention and treatmentBiocideFungiBiotechnologyHypha
The invention discloses an extracting process of biocontrol strains being fruit pythium aphanidermatum and fruit pythium aphanidermatum toxin for prevention and treatment of skyblue broomrape herb. The extracting process comprises enabling the fruit pythium aphanidermatum preserved on an inclined plane to be activated on a PDA panel, picking bacterium blocks, collecting hypha after the bacterium blocks are shaken and cultured in a PD culture medium, performing rotating steaming concentration after ethyl acetate solution is extracted in an ultrasound circulating extraction meter, utilizing NaHNO3 solution to extract crude extract, transferring the crude extract into ethyl ether solution, collecting aqueous phase, adjusting pH to utilize petroleum ether solution to extract extract, collecting the aqueous phase again and performing extraction through ethyl acetate, and performing constant volume of methanol after the ethyl acetate is decompressed and concentrated. The invention further discloses purposes of biocontrol strains and the toxin of the biocontrol strains, and the purposes are for controlling and preventing root parasitism weed skyblue broomrape herb. The extracting process is suitable for unique geological weather conditions of Sinkiang, is used for effectively preventing root parasitism weed skyblue broomrape herb of cash crops, and is suitable for industrial massive production, economical, practical and low in cost.
Owner:SHIHEZI UNIVERSITY
Field bactericide
InactiveCN103583526AEfficient killingReduce manufacturing costBiocideFungicidesDiacetonamineTrichloroisocyanuric acid
The invention discloses a field bactericide which comprises the following components in parts by weight: 5-10 parts of trichloroisocyanuric acid, 30-35 parts of copper diacetonamine, 1-3 parts of tetraconazole, 7-10 parts of an auxiliary and 100-150 parts of water. The field bactericide disclosed by the invention not only can effectively kill pythium aphanidermatum in soil, but also is low in production cost, so that the field bactericide is applicable to popularization and application in agricultural production.
Owner:QINGDAO SANDING SANITARY PROD
Trifluoromethyl-containing pyrimidinamine compound, preparation method thereof, and application of trifluoromethyl-containing pyrimidinamine compound used as bacteriacide
The invention relates to a 4-substituted phenyl-6-trifluoromethyl-2-amino pyrimidinamine compound which has a novel chemical structure and a general formula III, a synthesis method for the compound and the application of the compound used as bacteriacide. The method comprises the following steps of: reacting substituted phenyl methyl ketone used as an initial raw material and trifluoroacetic acid ethyl ester under catalysis of sodium alcoholate to generate 4,4,4-trifluoro-1-substituded phenylbutane-1,3-diketone, and reacting 4,4,4-trifluoro-1-substituded phenylbutane-1,3-diketone and guanidinium salt under an alkaline condition to generate a III series compound with the general formula III. The compound with the general formula III can inhibit growth of pathogenic bacteria such as rice sheath blight, rice bakanae disease, exserohilum turcicum, bipolaris maydis, curvulavia lunata, corn kernel rot, corn top rot pathogenic bacteria, fusarium graminearum, cotton anthracnose, bean fusarium, rape sclerotinia rot, botrytis cinerea, cucumber fusarium wilt pathogenic bacteria, cucumber brown rot pathogenic bacteria, cucumber scab pathogenic bacteria, hot pepper root rot pathogenic bacteria, kidney bean anthracnose bacteria, and pythium aphanidermatum. In the formula III, R is methyl, ethyl, methoxy group, fluorine, chlorine, bromine, trifluoromethyl and other groups, and the number of R is 1 to 3.
Owner:SHENYANG AGRI UNIV
Oxazole thiadiazole organic copper compound, its preparation method, preparation and application in controlling agricultural plant diseases
InactiveCN102516268ANo pollution in the processSolve the disadvantages of poor mixabilityBiocideCopper organic compoundsDiseaseSuspending Agents
The invention discloses an oxazole thiadiazole organic copper compound, its preparation method, preparation and application in controlling agricultural plant diseases. The preparation method comprises the following steps: adding 3-hydroxy-5-methyl isoxazole (hymexazol) and 2-amino-5-mercapto-1,3,4-thiadiazole and cupric salts in an organic solvent, reacting for 0.5-2 h, after the reaction successively carrying out separation, washing and drying to obtain the novel oxazole thiadiazole organic copper compound, that is, Cu-3-hydroxy-5-methyl isoxazole-2-amino-5-mercapto-1,3,4-thiadiazole. The obtained compound has stable properties and wide fungicide spectrum, can be made into wettable powder, dry suspending agents and aqueous suspending agents and the like, has outstanding control effects on main diseases of various crops, especially can control the diseases caused by Fusarium, aphanomyces invadans, Pythium aphanidermatum, and Corticium, and has special efficacy on various soil borne diseases and seedling damping off.
Owner:NORTHWEST A & F UNIV
Primer, probe and kit for detecting soybean damping-off disease based on recombinase polymerase amplification method
ActiveCN109234432AQuick checkEfficient detectionMicrobiological testing/measurementDNA/RNA fragmentationEnzymePythium
A primer, probe and kit for detecting soybean damping-off disease based on recombinase polymerase amplification method are disclosed. The primer pair comprises forward primer F as shown in SEQ ID NO.Primer and reverse primer R as shown in SEQ ID NO. 2- Primer; The sequence of the probe Probe is shown in SEQ ID NO. 3. Compared with the traditional detection technology for identifying melon and fruit Pythium according to the morphological characteristics, the invention has higher accuracy, sensitivity and effectiveness, is convenient to operate and has good practicability, provides a new technical platform for the detection of melon and fruit Pythium, and can be used for the high sensitivity and rapid detection of soybean damping-off caused by melon and fruit Pythium.
Owner:NANJING AGRICULTURAL UNIVERSITY
Rapid immunoassay test strip for phytophthora infestans and application thereof
InactiveCN111735954AShort detection timeImprove the efficiency of rapid screeningBiological testingImmunoassaysBiotechnologyCellulose
The invention discloses a rapid immunoassay test strip for phytophthora infestans and application thereof. The test strip comprises a bottom plate, wherein a water absorption pad, a detection pad, a gold label pad and a sample pad are sequentially adhered to one surface of the bottom plate from top to bottom; every two adjacent pads are connected in an overlapped mode at the joint, a nitrocellulose membrane serves as a base pad of the detection pad, a quality control line and a detection line are transversely arranged on the nitrocellulose membrane from top to bottom, the detection line is located below the quality control line, the detection line is coated with an anti-pyricularia grisea polyclonal antibody 0550, and the quality control line is coated with goat anti-mouse IgG. The gold label pad is sprayed with a nanogold labeled anti-pyricularia oryzae monoclonal antibody. The specificity is high, and no cross reaction is caused to pythium aphanidermatum, pear rust water, pear rot, pear anthracnose and the like of Asian pears; the sensitivity of the test strip can reach 1*10<5> cfu / mL, and the test strip can be used for rapid screening of pythium aphanidermatum in fields.
Owner:NANJING AGRICULTURAL UNIVERSITY
Trichoderma protoplast fusion strain and application thereof
ActiveCN106434370AExcellent comprehensive biological control propertiesHigh activityBiocideFungiTreatment effectTrichoderma sp.
The invention relates to a trichoderma protoplast fusion strain and application thereof. The trichoderma protoplast fusion strain is a trichoderma fusant Tpf-2, wherein the preservation number is CGMCC No.12477, the preservation date is May 30, 2016, the preservation unit is China General Microbiological Culture Collection Center, and the address is 3#, yard No.1, Bechen west road, Chaoyang District, Beijing. The trichoderma protoplast fusion strain can effectively prevent and treat diseases caused by pythium aphanidermatum and pythium wltmum, the prevention and treatment effect on tomato damping-off caused by the pythium aphanidermatum and the pythium wltmum reaches 86.3 percent and 85.7 percent separately, the yield-increasing effect reaches 77.3 percent and 79.9 percent separately (p is less than 0.01), the survival rate of the trichoderma protoplast fusion strains which are colonized in tomato rhizosphere soil for five months reaches 75 percent, and the effective survival rate of chlamydospore preparations within 1-year guarantee period reaches 90 percent.
Owner:山东济清科技服务有限公司
Antibacterial composition containing trifloxystrobin and carbamate compound
The invention relates to an antibacterial composition containing trifloxystrobin and a carbamate compound, which comprises an active component A and an active component B, wherein the active component A may be trifloxystrobin; the active component B may be propamocarb, propamocarb hydrochloride, diethofencarb or benthiavalicarbisopropyl; the weight percentage ratio of the active component A to the active component B is (1-60 percent):(1-80 percent); the active components is added with an additive and an excipient to form wettable powder, water dispersible granules, suspension, suspension emulsion, water emulsion and microemulsion for preventing and treating various diseases such as powdery mildew, Botrytis, downy mildew, rust disease, damping off, epidemic disease, late blight, stem rot, penicilliosis, Pythium aphanidermatum, Leptosphaeria maculans, apple scab and leaf spot, has an obvious synergetic effect and is safe for crops; and the antibacterial composition has the advantages of rain washing resistance, durable medicine effect and small dose.
Owner:陕西汤普森生物科技有限公司
Uses of clove bud volatile oil
The invention discloses uses of clove bud volatile oil, particularly applications of clove bud volatile oil in prevention and control of root rot of Chinese medicinal materials or crops in agricultureor applications of clove bud volatile oil in prevention and control of pathogenic bacteria causing diseases in the aerial parts of Chinese medicinal materials or crops. According to the present invention, the experiment results show that the clove bud volatile oil can inhibit the mycelial growth of four main pathogenic bacteria causing Panax notoginseng root rot and comprising Fusarium oxysporum,Fusarium solani, Pythium aphanidermatum and Cylindrocarpon destructans, can completely inhibit the mycelial growth of three pathogenic bacteria causing the diseases in the aerial parts of Panax notoginseng and comprising Botrytis cinerea, Colletotrichum gloeosporioides and Rhizoctonia solani, and has the antibacterial effect equivalent to the antibacterial effect of the chemical pesticide hymexazol, wherein the compounding of clove bud and hymexazol can provide synergistic effect for a variety of strains; the prevention and control effect on Panax notoginseng blade gray mold by the clove budvolatile oil is up to 60.77%; and the volatile oil has characteristics of easy volatility and decontamination through aroma, such that the fertilizers or pesticides developed from the volatile oil have advantages of safety, effectiveness, low residue and the like.
Owner:YUNNAN UNIV OF TRADITIONAL CHINESE MEDICINE +1
Medium for simple, convenient and quick pythium aphanidermatum isolation
The invention discloses a selective medium for simply, conveniently and quickly isolating pythium aphanidermatum, which is particularly suitable for isolation of pythium aphanidermatum, and belongs to the technical field of microbes. The medium is obtained through adding the following disinfectant (1) or (2) into a PDA (Potato Dextrose Agar) medium: (1) is a disinfectant consisting of carbendazol, pentachloronitrobenzene, flumorph and rifampicin; and (2) is a disinfectant consisting of prochloraz, pentachloronitrobenzene, flumorph and rifampicin. Experiments show that the PDA selective medium has the characteristics of feasibility, accuracy, practicability, quickness, low cost and simplicity and convenience in preparation. When the PDA selective medium is used for isolating pythium aphanidermatum and other pythium oomycetes, the problem of serious contamination of various non-target fungus and bacteria in the isolation process of pythium aphanidermatum and other plant pathogenic pythium is solved, and the effects of quickness, high efficiency and labor and time conservation are achieved.
Owner:CHINA AGRI UNIV
Plant-derived extract fungicide for crops and preparation technology thereof
InactiveCN108967454AImprove biological activityEnhanced inhibitory effectBiocideFungicidesAloe arborescensMammal
The invention discloses plant-derived extract fungicide for crops and belongs to the technical field of agriculture, aiming at solving the problems in the prior art that the fungicide has great toxicity and poor inhibition on bacteria. The key point of the technology is characterized in that the plant-derived extract fungicide for the crops is prepared from the following raw materials: a plant-derived extract component, citric acid, glycerol, an antioxidant, sodium chloride and de-ionized water. The plant-derived extract fungicide is prepared by taking pure natural substances extracted from plants including aloe, fructus gleditsiae, Chinese arborvitae twig and leaf, toona sinensis leaf and the like as main components, and basically has no toxin on mammals; dipropylene glycol monomethyl ether is used as a main component and a chemical structure only contains three elements including carbon, hydrogen and oxygen; a degradation product has extremely good environmental compatibility. The plant-derived extract fungicide has good bioactivity on certain plant-derived bacteria, and has a relatively high inhibition effect on blumeria graminis, cotton rhizoctoniosis, pythium aphanidermatum and colletrichum orbiculare. The inhibition rate on tomato botrytis cinerea and leaf mold disease reaches about 95 percent; the plant-derived extract fungicide has no toxin, high safety and important market value and social value.
Owner:BEIJING HONGNA LUYUAN TECH DEV CO LTD
Sterilizing composite containing captan
ActiveCN102696646BImprove securityMeet safety requirementsBiocideFungicidesSuspending AgentsSheath blight
Owner:SHAANXI SUNGER ROAD BIO SCI
1,2,3-thiadiazole-containing benzoyl hydrazone derivative as well as preparation method and application thereof
InactiveCN105439979AEasy to purifyEasy to prepareBiocideOrganic chemistrySynthesis methodsAlternaria tomato
The invention belongs to the field of organic compound synthesis and particularly relates to a 1,2,3-thiadiazole-containing benzoyl hydrazone derivative as well as a preparation method and application thereof. The structure of the compound is shown by a formula I in the specification. In the invention, the synthesis method of the compound shown by the formula I is easy to operate, the raw materials are easily available, the production of toxic by-products is avoided, and the yield is relatively high. According to biological activity tests, the compound shown by the formula I shows excellent bactericidal activity, can be used for preventing controlling apple rot, rice sheath blight, pythium aphanidermatum, botrytis cinerea, alternaria solani and bakanae disease in agricultural production and has relatively good value in application and development.
Owner:CHINA AGRI UNIV
Endophytic antagonistic Serratia sp. ZF05 from Fenghuang Dancong tea plants and application thereof to biocontrol
The invention discloses endophytic antagonistic Serratia sp. ZF05 from Fenghuang Dancong tea plants and an application thereof to biocontrol. Sampling from Fenghuang Dancong tea plant leaves, separation and purification, screening and cultivation are carried out in order to obtain a strain of Serratia sp. ZF05 GDMCC No:60015 with good biocontrol effects. The bacterial strain is obviously different from common Serratia sp. in the aspects of physiological-biochemical characteristics and molecular level, so the bacterial strain is a typical new bacterial strain. The bacterial strain ZF05 has good inhibition effects for Alternaria alternate, Walnut blight, Alternaria sp., Rhizoctonia solani, and Pythium aphanidermatum; mycelium growth inhibition rates are as follows: 73.02%, 73.70%, 78.51%, 84.56% and 20.06%; Serratia sp. ZF05 is a biocontrol bacterium with obvious typicality and high specificity, and has good application prospects for developing new biopesticides or biological control microbial inoculum; Serratia sp. ZF05 has wide application values for biocontrol.
Owner:HANSHAN NORMAL UNIV
Heterocyclicmethrin compound and its uses in weeding and sterilization
The invention provides heterocyclic pyrethrin compounds having good biological activity to six tested weed control targeted wheat, barnyard grass, Chinese sorghum, rape, radish and cucumber. During the sterilization active test, the compounds show very high biological activity to phytophthora cryptogea pethybridge & lafferty, Pythiumaphanidermatum(Eds.) Fitzp., apple melanomyces, cucumber gray mold, wheat leaf blight bacterium, Gibberella zeae, rice blast bacterium, cotton soreshin, and other six kinds of in vivo targeted bacteria.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Application of castor cake meal coarse extract in inhibition on plant pathogenic pythium
The invention discloses an application of a castor cake meal coarse extract in inhibition on plant pathogenic pythium. The plant pathogenic pythium includes Pythium ultimum, Pythium aphanidermatum and Pythium arrhenomanes. The castor cake meal coarse extract is prepared through the steps of weighing castor cake meal powder which is crushed and passes through a sieve in 80-120 meshes; adding distilled water, performing reflux extraction and filtering the liquid while hot and collecting a filtrate with medicine residue for later use; adding distilled water to the medicine residue, continuously performing the reflux extraction, filtering the liquid while hot and collecting a filtrate; mixing the two filtrates, and evaporating and concentrating the mixed filtrate to obtain the coarse extract. The invention not only provides an excellent novel bactericide for production but also develops a new approach of utilization of waste in castor industry.
Owner:INNER MONGOLIA UNIV FOR THE NATITIES
Applications of macrolide compound in preventing plant downy mildew
The invention relates to applications of Hypothemycin, shown in a formula (1) described in the specification, in preventing downy mildew of plant and harvested fruits. Experiments prove that the Hypothemycin can obviously inhibit the growth of peronophythora litchi and phytophthora nicotianae, and has certain inhibition activity to pythium aphanidermatum and phytophthora melonis; and in addition, the Hypothemycin has an obvious inhibition effect on the downy blight infection of the harvested litchi fruits, as well as an obvious inhibition effect on the rotting of harvested litchis.
Owner:SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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