30 results about "Crop mycosis" patented technology

The invention relates to an antibiotic streptomyces, fermentation product of which can inhibit broad spectrum fungus and protozoan, and field experiment can control crop fungus plant disease and root-knot nematode. The antibiotic streptomyces has good effect, no pollution nuisance and no residue. The antifungal agent has extremely low hazardness for the people and good performance and development prospect for medical and agricultural use. The invention is named as SIM001 antibiotic streptomyces which is Streptomyces antibioticus subspecies xi an, and is preserved as patent in the depositary institution appointed by patent office of state intellectual property office; the preservation data is April 14th, 2005, the name of the depositary institution is CGMCC, and the number of preservation is CGMCC No.1349. The whole cell hydrolysate of the antibiotic streptomyces contains L, L-DAP (Diaminopimelic acid) and no characteristic glucide; the cytoderm belongs to I type and glucide type C; one of the main antibacterial materials is polyene macrocyclic ketolide which belongs to the broad spectrum antifungal substance.

The invention relates to a bactericide composition for preventing and controlling cotton disease. The bactericide composition is a composition of wettable powder, suspending agent, water dispersible granule or seed coating, which is prepared from fluoride ether bacteria amide, thiram and auxiliaries of wetting agent, dispersing agent, filling agent and the like. The fluoride ether bacteria amide and the thiram are mixed by the proportion of 1:4 to 4:1 and the combination of two bactericides with different bactericidal action mechanisms not only plays an obvious synergistic effect for cotton blight, but also is helpful for postponing the drug resistance of pathogenic bacteria. The bactericidal range is wide. The bactericide composition provided by the invention is applicable to prevention and control of various fungal diseases of crops, such as cotton blight, cotton damping off, cotton anthracnose, vegetable root rot and damping off and strawberry blight.

The invention relates to a sophorolipid agricultural antibiotic and an application thereof to control of fungal diseases of crops. The sophorolipid agricultural antibiotic is prepared by the following steps: obtaining a biosurfactant sophorolipid by virtue of a microbial fermentation technology; and then preparing a sophorolipid solution by using distilled water, wherein the sophorolipid solution is used as the sophorolipid agricultural antibiotic. The sophorolipid agricultural antibiotic is uniformly sprayed to the blade surfaces of crops or surfaces of fruits to achieve the purpose of preventing and controlling fungal diseases of crops. The sophorolipid agricultural antibiotic provided by the invention that the production process is simple, the raw materials are easy and convenient to obtain, in the cost is low, the output is high, and no toxic effect is caused to a human body. The prepared sophorolipid agricultural antibiotic is simple in dosage form, easy to prepare, remarkable in preventing and control effect and convenient to use and has a huge application prospect.

The invention provides an agricultural fungicide WYLZ-1349 taking azalomycin F3, azalomycin F4 and a nyphimycin composition as effective constituents, as well as preparation method and application thereof. The preparation method of the agricultural fungicide WYLZ-1349 comprises the following steps of: firstly culturing Streptomyces malaysiensis ECO 00002 with the preservation number of CGMCCNo. 1680; then separately extracting a fermentation culture; breaking the wall of mycelium with acetone or methanol and mixing with a fermentation supernate; and absorbing by macroporous absorption resin for separation; eluting by the acetone or the methanol; concentrating or further purifying an eluent so as to obtain the agricultural fungicide WYLZ-1349 or the azalomycin F3, the azalomycin F4 and nyphimycin; and then adding a carrier or an auxiliary agent so as to obtain a finished product. Test results show that the agricultural fungicide WYLZ-1349 has good effect especially in preventing and controlling rice blast, tobacco brown spot, tomato gray mold and pepper anthracnose and has small using amount, low using cost for peasants, wide usable range, and the like compared with the traditional medicament.

The invention discloses a preventive detection apparatus and method for fungal diseases of crops based on a micro-fluidic chip, belonging to the field of microbiological detection. According to the preventive detection apparatus, the output shaft of a stepping motor is upwardly arranged and fixedly connected with the center of the micro-fluidic chip; multi-stages of identical micro-fluidic detection channels are arranged on the micro-fluidic chip; a pneumatic solenoid valve group is composed of a plurality of pneumatic solenoid valves with a same structure; the end, where an air inlet is located, of each pneumatic solenoid valve is connected with a chip exhausting opening via a flexible exhausting pipe ; and the other end of the airway of each pneumatic solenoid valve is connected with a minisized air pump via an air outlet of the pneumatic solenoid valve. The preventive detection apparatus employs a rotary micro-fluidic chip capturing structure, has the functions of automatic filtering, negative-pressure suction, enrichment detection, electric air exhausting, etc. and can carry out both on-site high-flux detection of the fungal diseases of a crop in a field and portable, rapid and high-efficiency capturing of fungi on different crops, thereby realizing early detection and early warning of diseases.

The invention relates to a biological bactericide and a preparation method thereof. The biological bactericide is N-o-chlorophenylacetyl-N-phenazine-1-formylhydrazine which is obtained by virtue of two-step fermentation culture of a genetically improved strain SN36 of pseudomonas choloeaphtis in a liquid culture medium; the collection number of the obtained SN36 in the China General Microbiological Culture Collection Center is CGMCC No.7846. Compared with the prior art, the biological fermentation product has remarkable effects on prevention and treatment of fungal diseases of a plurality of crops, and mass production of the biological bactericide can be realized by virtue of introduction.

The invention relates to the technical field of biological control of plant diseases, and discloses virus-carrying low-toxicity sclerotinia sclerotiorum and application thereof in biological control.The strain is sclerotinia sclerotiorum 767R45, and the preservation number is CCTCC NO: M20419. Volatile substances generated by the sclerotinia sclerotiorum 767R45 strain and 10% of fermentation filtrate of the volatile substances can inhibit the growth of sclerotinia sclerotiorum, rhizoctonia solani, botrytis cinerea, fusarium oxysporum, Bipolaris rice, leptosphaeria biglobosa and geotrichum citri-aurantii hyphae. Besides, the volatile substances and the fermentation filtrate generated by the sclerotinia sclerotiorum 767R45 strain can inhibit the occurrence of gray mold, penicilliosis and penicilliosis in the storage period, the fermentation filtrate can also inhibit the occurrence of sclerotinia sclerotiorum, and the volatile substances can promote the growth of arabidopsis seedlings. According to the invention, phytopathogens become beneficial biocontrol resources, and a new visual angle and a new means are provided for biological control of fungal diseases of crops.

The invention relates to a novel ceriporialacerata species and application thereof in preventing and treating crop fungus diseases. A preservation number of the novel ceriporialacerata species is CGMCC (China General Microbiological Culture Collection Center) No.13899, the novel ceriporialacerata species is classified and named as Ceriporia lacerate HG2011, and the strain has a nucleotide sequence in a C. lacerate HG2011 18SrDNA sequence list and belongs to Ceriporia of Phanerochaetaceae. A bacterial colony is white and in villous and flocculent state, and an appropriate growth temperature is 25 to 28 DEG C. The strain can secrete varieties of extracellular enzymes of chitinase, cellulase, beta-1,3-glucanase, protease and the like; fermentation broth of the strain has a stronger antagonism effect on varieties of plant pathogenic fungi; the strain can be applied to preventing and treating flue-cured tobacco and phytophthora capsici diseases and has larger application potential in an aspect of preventing and treating the plant pathogenic fungi.

The invention discloses an aspergillus terreus strain SYAT-1 resistant to saline-alkali and pathogenic fungi and an application thereof, and belongs to the technical field of microorganisms, the strain is preserved in China General Microbiological Culture Collection Center (CGMCC) on November 9, 2020, the preservation name is aspergillus terreus SYAT-1, and the preservation number is CGMCC No.21021; the aspergillus terreus strain SYAT-1 disclosed by the invention has a salt-tolerant characteristic and can tolerate salt stress caused by sodium salt of 17.5% or below; the strain also has alkali-resistant characteristic and can tolerate alkali stress with pH below 12, and the optimal growth pH range of the strain is 7.0-9.0; and in addition, the strain has an inhibition effect on plant pathogenic fungi. The aspergillus terreus strain SYAT-1 disclosed by the invention has important application value in the aspects of improvement of saline-alkali soil and biological prevention and control of fungal diseases of crops.

The invention relates to a process for producing a 5 percent hexaconazole suspending agent. A formulation of the hexaconazole suspending agent comprises 50.3 kilograms per ton of hexaconazole, 120 kilograms per ton of special assistant, 3 kilograms per ton of xanthan gum, kilograms per ton of DMF and proper amount of water. The hexaconazole suspending agent has a good effect of preventing and controlling rice sheath blight; the hexaconazole suspending agent is applied at the attack initial period of the rice sheath blight, preferably 80 to 100 milliliters in each mu; the hexaconazole suspending agent is evenly sprayed to rice strains, the prevention effect reaches more than 80 percent, and the environment pollution is lightened; and the hexaconazole suspending agent has good effects of preventing and controlling powdery mildew and gray mold of economical plants, such as grape and the like, beside preventing and controlling fungal diseases of grain crops.

The invention discloses a metiram compound bactericide and application thereof. The compound bactericide comprises metiram, berberine and the balance of auxiliaries, wherein in percentage by weight, the content of metiram is 50%-70%, and the weight ratio of metiram to berberine is (24-99): 1. The compound bactericide is used for preventing and treating fungal diseases of crops, especially peach brown rot. Metiram is used as a main component, berberine is added to serve as a synergist, the prevention effect of metiram can be remarkably improved, and pathogenic bacteria are not likely to generate drug resistance to metiram. The compound bactericide can effectively prevent and treat apple ring rot, and the prevention effect is improved by 18% or above.

The invention describes a natural fungicide which comprises gallnut and myrobalan extracts which exhibit a synergistic effect against Alternaria brassicicola, and can be used to control crop fungal diseases. The formulation is a pollution-free microbicide that is degradable and friendly to farm worker, creatures and environment.

The invention relates to the technical field of biological control of plant diseases, and discloses a virus-carrying low-toxic strain of Sclerotinia sclerotiorum and its application in biological control. The strain is Sclerotinia 767R45, and the preservation number is: CCTCC NO: M2020419 . Volatile substances produced by S. sclerotiorum 767R45 strain and 10% fermentation filtrate can inhibit S. sclerotiorum, Rhizoctonia solani, Botrytis cinerea, Fusarium oxysporum, Helminthes oryzae, and black shank of rape and mycelial growth of Sour rot citri. In addition, the volatile substances and fermentation filtrate produced by Sclerotinia 767R45 can inhibit the occurrence of gray mold, penicillium and green mold during storage, and the fermentation filtrate can also inhibit the occurrence of Sclerotinia sclerotiorum, and its volatile Substances can promote the growth of Arabidopsis seedlings. The invention turns plant pathogenic bacteria into beneficial biological control resources, and provides a new perspective and new means for the biological control of crop fungal diseases.

The invention discloses a disenlian compound fungicide and an application thereof. The compound fungicide includes dysenlian and berberine, and the rest are auxiliary agents; wherein, in terms of weight percentage, the content of dysenlian is 50%-70%, and the weight ratio of dysenlian to berberine is 24%. ‑99:1. The compound fungicide is used for preventing and controlling fungal diseases of crops, especially peach brown rot. The compound fungicide of the present invention uses daisenlian as a main component, and adding berberine as a synergist can significantly improve the control effect of daisenlian, and bacteria are not easy to develop drug resistance to it. The compound fungicide can effectively prevent and control apple ringworm, and the control effect is increased by more than 18%.

The invention belongs to the technical field of plant protection and particularly relates to a lithospermum extract and pesticide-containing synergistic composition for treating crop fungal diseases.The composition comprises a component A and a component B. The component A is lithospermum extract. The component B is a prochloraz original drug. The component A and the component B are mixed according to a weight ratio of 50: 1 to 200: 1. Through the synergistic effect of the various components, the lithospermum extract and pesticide-containing synergistic composition belonging to the fungal pesticide can be used for preventing and treating crop fungal diseases.

The invention relates to a new species of cereus tearing fungus and its application in the prevention and treatment of fungal diseases of crops. The preservation number is CGMCC No.13899, and the classification name is Ceriporia lacerate HG2011, the strain has C. lacerate Nucleotide sequence in HG2011 18S rDNA sequence listing. Belonging to the Phanerobacteriaceae ( Phanerochaetaceae ) cereus ( Ceriporia ). The colony is white, fluffy and flocculent; the suitable temperature for growth is 25~28℃. The strain can secrete a variety of extracellular enzymes such as chitinase, cellulase, β‑1,3‑glumerase and protease, and its fermentation broth has a strong antagonistic effect on a variety of plant pathogenic fungi, and is used in The control of flue-cured tobacco and capsicum phytophthora has great application potential in the control of plant pathogenic fungi.

A novel agricultural chemical-Songgangmycin as a biochemical for preventing and treating the fungal diseases of agricultural crops is prepared from rice through preparing culture medium from rice and the nutritive liquid containing NaCl, KH2PO4, NaNO3 and FeSO4, inoculating the urticaria blue mold to it, culturing, extracting in organic solvent, carboxylation reaction with the cross-linking agent (4-(P-azidosalicylnitro)butylamine), vacuum concentrating to obtain crystal seeds, and dissolving in aqueous solution.

The invention discloses a thiophanate-methyl compound bactericide and application thereof. The compound bactericide comprises thiophanate-methyl, berberine and the balance of auxiliaries, wherein in percentage by weight, the content of thiophanate-methyl is 30%-60%, and the weight ratio of berberine to thiophanate-methyl is 1: 29-119. The compound bactericide is used for preventing and treating fungal diseases of crops, especially peach brown rot. According to the compound bactericide, thiophanate-methyl serves as a main component, berberine is added to serve as a synergist, the prevention effect of thiophanate-methyl can be remarkably improved, the compound bactericide has the protection and treatment effects, peach brown rot can be effectively prevented and treated, and the compound bactericide is safe to non-target organisms and the environment.

The invention relates to the application of an oleanane-type pentacyclic triterpene compound in preventing and treating fungal diseases of crops and a method for using the same to prevent and control fungal diseases of crops. The present invention does not utilize the direct antibacterial effect of oleanane-type pentacyclic triterpenes, but improves the resistance of crops to fungal diseases by soaking seeds before sowing or soaking roots before transplanting or spraying leaves after transplanting ability, and finally achieve the purpose of disease resistance. More importantly, the prevention and control method provided by the invention only needs to be applied once before planting to achieve the purpose of alleviating the disease, which greatly reduces the control cost of conventional pesticides.

The invention discloses a novel application of an antifungal medicine to prevention and control of crop diseases and belongs to the field of agricultural fungicides. The antifungal medicine is fluconazole and can prevent and control rice sheath blight disease, tomato early blight, rice blast, wheat powdery mildew, wheat stripe rust, rhizoma bletillae southern blight, apple alternaria leaf spots, bipolaris maydis and peanut root rot. Discovered that the fluconazole is relatively high in activity to various crop fungal diseases, the activities of some fluconazole are even higher than the activities of the triazole agricultural commercial fungicide used now, and the fluconazole can realize the novel application to prevention and control of the crop diseases.

A breeding method of crop fungal disease permanent disease-resistant compound train includes: firstly acquiring the etiology strain of the target crop diseases and the corresponding disease-resistant genetic resources; switching disease-resistant gene in each disease-resistant genetic resource in the skeleton parent, for breeding complemented anti- spectrum breeding intermediate material; using the breeding intermediate material to breed conventional breed near isogenic line or hybrid female parent and male parent near isogenic line with complemented anti- spectrum and identical other characteristics, distributing the disease-resistant genes to each near isogenic line; mixing the near isogenic line conventional breed with complemented anti- spectrum for production, or mixing the female parent near isogenic line with complemented anti- spectrum as the female parent, the male parent near isogenic line with complemented anti- spectrum as the male parent, and then producing the cross-fertilize seeds according to the usual cross-fertilize seed production method. Compound train breed prepared by the invention is applied in the production, which can improve the flexible degree of the crop resistance, realize the crop permanence resistance, meet the scale, standardization and commercialization requirements of the modern agriculture and extend the service life of the breed.

The invention provides an agricultural fungicide taking new phosphorus and nitrogen mycin A as an effective ingredient, as well as preparation method and application thereof. The preparation method of the agricultural fungicide comprises the following steps of: firstly culturing Streptomyces tauricus ECO 00008 with the preservation number of CGMCCNo. 1682; then separately extracting a fermentation culture; breaking the wall of mycelium with acetone or methanol and mixing with a fermentation supernate; and absorbing by macroporous absorption resin for separation; eluting by the acetone or the methanol; concentrating or further purifying an eluent so as to obtain the new phosphorus and nitrogen mycin A; and then adding a carrier or an auxiliary agent so as to obtain a finished product. Test results show that the agricultural fungicide WYLZ-1349 has good effect especially in preventing and controlling rice blast, tobacco brown spot, tomato gray mold and pepper anthracnose and has small using amount, low using cost for peasants, wide usable range, and the like compared with the traditional medicament.

The invention belongs to the technical field of plant protection, and particularly relates to a synergetic composition containing a radix arnebiae traditional Chinese medicine extract and a fungicidefor oomycete disease prevention and control of crops. The composition is prepared from a component A and a component B, wherein the component A is the radix arnebiae traditional Chinese medicine extract , and the component B is prepared from the fungicide crude drug, and a total weight ratio of the component A to the component B is (5 to 1) to (8 to 1). The synergetic composition disclosed by theinvention has the synergetic effect through combining multiple components, belongs to the fungal pesticides, and can be used for preventing and controlling the fungal diseases.

The invention relates to an antibiotic streptomyces, fermentation product of which can inhibit broad spectrum fungus and protozoan, and field experiment can control crop fungus plant disease and root-knot nematode. The antibiotic streptomyces has good effect, no pollution nuisance and no residue. The antifungal agent has extremely low hazardness for the people and good performance and developmentprospect for medical and agricultural use. The invention is named as SIM001 antibiotic streptomyces which is Streptomyces antibioticus subspecies xi an, and is preserved as patent in the depositary institution appointed by patent office of state intellectual property office; the preservation data is April 14th, 2005, the name of the depositary institution is CGMCC, and the number of preservation is CGMCC No.1349. The whole cell hydrolysate of the antibiotic streptomyces contains L, L-DAP (Diaminopimelic acid) and no characteristic glucide; the cytoderm belongs to I type and glucide type C; one of the main antibacterial materials is polyene macrocyclic ketolide which belongs to the broad spectrum antifungal substance.

The invention discloses a lactobacillus fermentum and its application in the prevention and treatment of plant fungal diseases, belonging to the field of biological control preparations. The bacterial strain is isolated from the soil planted under the tomato, and its classification is named as Lactobacillus fermentum. The Latin scientific name of the strain is: Lactobacillus fermentum. The registration number of the center is CGMCC No.8735. Lactobacillus fermentum is fermented and cultivated to obtain a fermented liquid, and then the fermented liquid is concentrated to prepare a lactic acid bacteria concentrated liquid, which is then diluted and sprayed on the leaves of crops; this strain has a good effect on inhibiting fungal diseases of crops, and has the function of promoting the growth of crops , in line with the requirements of ecological agriculture.

The invention discloses a crop fungal disease prevention and detection device and method based on a microfluidic chip in the field of microbial detection. The output shaft of the stepper motor is vertically upward and fixedly connected to the center of the microfluidic chip. There are multiple devices on the microfluidic chip. Microfluidic detection channels with the same level. The pneumatic solenoid valve group is composed of multiple pneumatic solenoid valves with the same structure. One end of the air inlet of each pneumatic solenoid valve is connected to a chip air extraction port through an air extraction hose. The pneumatic solenoid valve The other end of the airway is connected to the micro air pump through the air outlet of the pneumatic solenoid valve; it adopts an array rotating microfluidic chip capture structure, which has functions such as spontaneous filtration, negative pressure suction, enrichment detection, and electric air pumping, and can be used in the field High-throughput detection of fungal diseases of the same crop on-site can also realize portable, fast and efficient capture of fungi of different crops, enabling early detection and warning of diseases.