79 results about "Rhizoctonia" patented technology

The invention discloses a broad-spectrum biocontrol strain water bacillus barren ZG18 and application thereof, and belongs to the technical field of plant disease control, and the broad-spectrum biocontrol strain water bacillus barren ZG18 is characterized in that the water bacillus barren ZG18 is water bacillus barren and is preserved in the China General Microbiological Culture Collection Center, and the preservation number of the water bacillus barren ZG18 is CGMCC (China General Microbiological Culture Collection Center). The preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, China; the preservation date is September 6, 2024; the preservation number is CGMCC (China General Microbiological Culture Collection Center) The biocontrol bacterium strain disclosed by the invention has a relatively strong inhibition effect on pathogenic fusarium sporotrichum, fusarium graminearum, botrytis cinerea, rhizoctonia solani and corticosis cucurbitae, the prevention and treatment effect of the strain ZG18 on tobacco target leaf spot reaches up to 51.34%, the prevention and treatment effect of the strain ZG18 on tobacco damping-off in a pot experiment is 65.91%, and the strain ZG18 has a promoting effect on tobacco growth.

The invention belongs to the field of microorganisms, and particularly relates to a banana endophyte compound fungicide as well as a preparation method and application thereof. According to the invention, a novel endophytic bacillus velezensis JDB15 strain and an endophytic trichoderma harzianum JDL4 strain are separated from a banana plant. The trichoderma harzianum JDL4 can inhibit botrytis cinerea, fusarium graminearum, rhizoctonia solani, peach anthracnose pathogen, peach brown rot pathogen and alternaria alternata, and has a good broad-spectrum antibacterial effect. Meanwhile, after the filtrate of the fermentation liquor of the trichoderma harzianum JDL4 and the bacillus velezensis JDB15 are compounded, the antibacterial effect is remarkably improved, and the control effect on banana fusarium wilt, pyricularia oryzae, tomato fusarium wilt and corn bipolaris maydis is also remarkably improved. The compound bacterial agent has wide biocontrol bacterial activity, can be developed deeply subsequently, and provides a sustainable and green solution for prevention and treatment of banana wilt and other plant diseases.

The invention belongs to the technical field of microorganisms, and discloses streptomycete Y309 and application thereof. The preservation number of the streptomyces sp. Y309 is GDMCC No: 64527, and the streptomyces sp. Y309 has relatively strong secondary metabolite synthesis capability and can be used for producing siderophore, IAA (Indoleacetic Acid) and the like. The strain Y309 also has the potential of plant growth promotion and disease control, and the strain Y309 has a relatively strong bacteriostatic effect on 12 pathogenic fungi such as fusarium oxysporum, rhizoctonia cerealis, monilinia fusarium and coracocystis fimbristipula as well as 7 pathogenic bacteria such as pseudomonas syringae lacrimation pathogenic variants and bacillus cereus, and has a relatively strong bacteriostatic effect on 12 pathogenic fungi such as fusarium oxysporum, rhizoctonia cerealis, monilinia fusarium and coracocystis fimbristipula. The strain Y309 has good prevention and treatment effects on wheat sharp eyespot, tomato gray mold and pepper fusarium wilt, fermentation liquor of the strain Y309 can remarkably promote wheat seed germination and seedling growth, agronomic characters such as the plant height, the dry weight and the leaf area in the corn seedling stage can be improved in different saline-alkali soil, and the strain Y309 has good application prospects.

According to the nano pesticide and the preparation method and application thereof, pH response type nano particles ZIF-90 serve as a carrier, azoxystrobin is loaded to serve as a medicine, and the nano pesticide is used for preventing and treating rice sheath blight disease caused by rhizoctonia solani. When the rhizoctonia solani infects rice, oxalic acid can be generated to reduce the pH around an infected area, so that the ZIF-90 carrier skeleton and the hyaluronic acid coating are decomposed to release azoxystrobin, and the rhizoctonia solani is inhibited in a targeted manner. It is further found that ZIF-90 and azoxystrobin have synergistic bacteriostatic activity, the EC50 value of azoxystrobin to rhizoctonia solani can be greatly reduced, after ZIF-90 carrier encapsulation and hyaluronic acid end capping, the photolysis stability of azoxystrobin can be improved, the adhesive force of azoxystrobin on rice leaves can be enhanced, and the ZIF-90 and azoxystrobin compound has important application in agricultural disease control.

The invention discloses an application of 3-phenyl propyl acetate in preparation of a medicine for preventing and treating fungal diseases of rice. Experiments show that the compound can effectively inhibit mycelial growth and conidia germination of magnaporthe oryzae, can interfere conidia of magnaporthe oryzae to form appressorium, has an obvious inhibition effect on magnaporthe oryzae, and also inhibits mycelial growth of rhizoctonia solani. The inventor also accidentally finds that the antibacterial effect of the pesticide can be promoted by adding a small amount of 3-phenyl propyl acetate into the pesticide, so that the small amount of 3-phenyl propyl acetate can be used as a pesticide synergist for preventing and treating the rice fungal diseases. Therefore, the 3-phenyl propyl acetate has good application value in the aspects of prevention and control of rice fungal diseases and drug development.

The invention belongs to the technical field of microorganisms, and particularly discloses trichoderma harzianum NBU-1 and application thereof. The Trichoderma harzianum NBU-1 is preserved in the Guangdong Microbial Culture Collection Center on March 26, 2025, the preservation address is the 5th floor, No. 59 building, No. 100 Courtyard, Xianlie Middle Road, Guangzhou, and the preservation number is GDMCCNO: 66053. The invention discloses trichoderma harzianum NBU-1 and application thereof, the trichoderma harzianum NBU-1 is applied to prevention and treatment of wheat sharp eyespot, and the activity of rhizoctonia cerealis R0301 and the growth of scab are effectively inhibited.

The invention discloses bacillus cereus L15, and relates to the technical field of microorganisms, the bacillus cereus L15 is preserved in China General Microbiological Culture Collection Center (CGMCC) on January 2, 2025, and the preservation number is CGMCC No.33276. The bacillus cereus L15 has the advantages that the bacillus cereus L15 can be used for preparing the bacillus cereus L15; the new bacillus cereus L15 provided by the invention has obvious broad-spectrum antibacterial property, can have a good inhibition effect on rhizoctonia dinuclear, fusarium and phaseolus vulgaris, and can be used for preventing and treating plant root rot and stem rot caused by the fusarium, the rhizoctonia and the phaseolus vulgaris.

The invention discloses an 8-bromine-5-substituted-1, 3, 4, 5-tetrahydrothiapyran [4, 3-b] indole derivative, and the 8-bromine-5-substituted-1, 3, 4, 5-tetrahydrothiapyran [4, 3-b] indole derivative is 8-bromine-5-(4-chlorophenethyl)-1, 3, 4, 5-tetrahydrothiapyran [4, 3-b] indole and / or 8-bromine-5-phenethyl-1, 3, 4, 5-tetrahydrothiapyran [4, 3-b] indole. The invention further discloses a preparation method of the 8-bromine-5-substituted-1, 3, 4, 5-tetrahydrothiapyran [4, 3-b] indole derivative. The 8-bromo-5-substituted-1, 3, 4, 5-tetrahydrothiapyran [4, 3-b] indole derivative provided by the invention has the effects of inhibiting rhizoctonia solani and promoting seed germination. The compound provided by the invention not only can be used for preventing and treating rice sheath blight disease through spraying treatment, but also can be used for preventing rice seeds from carrying bacteria in a seed soaking manner, so that the rice sheath blight disease is comprehensively prevented and controlled. Besides, rice seeds are soaked in a compound solution, germination of the rice seeds can be promoted, the root length, growth vigor and fresh weight indexes of the seeds are improved, and the compound has good application prospects and value in prevention and treatment of the rice sheath blight disease.

The present invention relates to the field of microorganisms, and particularly to a Bacillus amyloliquefaciens BZWQ833, a microbial agent and its application. A Bacillus amyloliquefaciens was screened from the rhizosphere soil of a potato common scab field with continuous cropping for many years, named Bacillus amyloliquefaciens BZWQ833 and subjected to biological preservation. This bacterium is a Gram-positive bacterium that can produce spores and can produce protease, cellulase and pectinase. The present invention first discovers that Bacillus amyloliquefaciens BZWQ833 can inhibit the growth and incidence of Streptomyces scabies, Rhizoctonia solani, Fusarium oxysporum and Fusarium solani, and the antibacterial effect is stable. Moreover, through greenhouse pot experiments and field control experiments, it is verified that Bacillus amyloliquefaciens BZWQ833 has a significant control effect on various plant soil-borne diseases (common scab, powdery scab and fruit rot), providing a new biological control resource for the biological control of plant soil-borne diseases.

The present invention discloses an actinomycete with antagonistic effect against the pathogen of cucumber damping-off and its application. The actinomycete is Streptomyces aureusensis Q1C-44, which has antagonistic effect against Rhizoctonia solani of cucumber, can effectively inhibit the hyphal elongation of the pathogenic fungus, and can be used to control damping-off caused by Rhizoctonia solani of cucumber.

The application provides a streptomyces LZZY-S3 and application thereof, and belongs to the field of microorganisms.The streptomyces LZZY-S3 provided by the application enriches strains for biological control, and realizes the dual functions of plant resistance to pathogenic bacteria and plant promotion.The streptomyces LZZY-S3 has the function of inhibiting fungi in a wide range, and can be applied to plant resistance to pathogenic bacteria, and the pathogenic bacteria include Exobasidium vexans, Botryosphaeria spp., Gibberella, Fusarium oxysporum, Pythium, Fusarium graminearum, Didymella, Fusarium pseudograminearum, Trichothecium roseum, Coniella diplodiella, Colletotrichum graminicola or Rhizoctonia cerealis, wherein the inhibition rate of Exobasidium vexans reaches 91.2%.The streptomyces LZZY-S3 can also be applied to plant promotion, preparation of nitrogen-fixing bacterial agents and preparation of ACC deaminase bacterial agents and the like.

The present application discloses a highly effective and broad-spectrum biocontrol bacterium Pseudomonas FM36 and its application. The Pseudomonas aestivum is strain FM36, which is classified and named Pseudomonas aestivum Pseudomonas rye , deposited in the General Microbiology Center of China Microorganism Culture Collection Committee, with the deposit number of CGMCC NO.32868. The present application also provides the use of the above-mentioned Pseudomonas aestivum FM36 strain in promoting tomato growth, preventing and controlling plant viruses and pathogenic fungi. The Pseudomonas aestivum provided in the present application has a promoting effect on tomato growth and yield increase, and has an effect on tobacco mosaic virus (TMV) and red pepper vein mottle virus (ChiVMV), as well as Rhizoctonia solani ( Rhizoctonia solani )、Pyricularia grisea( Magnaporthe rice )、Alternaria tenuifolia( Alternaria tenuissima )、White wax spiny spore ( Colletotrichum spaethianum ), Fusarium spp. Cuban type ( Fusarium oxysporum f.sp. from Cuba ) and other pathogenic fungi showed obvious antagonistic and inhibitory effects.

The invention discloses a soybean phomopsis longicolla resistance gene and application thereof, and belongs to the field of genetic engineering, the gene is Psd18.1, and the resistance of soybeans to the soybean phomopsis longicolla can be improved by knocking out or silencing the soybean Psd18.1 gene. It is proved that the Psd18.1 negatively regulates and controls the resistance of the soybeans to the PSD. The invention provides a new choice for preventing and treating the soybean phomopsis seed rot and cultivating disease-resistant varieties.

The present application belongs to the technical field of orchid disease prevention and treatment, and particularly relates to a fungicidal composition for preventing and treating orchid root rot. The fungicidal composition for preventing and treating orchid root rot comprises active ingredients of nerol and compound a, wherein the compound a is at least one selected from prochloraz, difenoconazole and carbendazim. When nerol is compounded with prochloraz, difenoconazole and carbendazim, the synergistic effect is shown by the co-toxicity coefficient (CTC) value of the compound combination to the pathogenic fungus of Rhizoctonia solani being greater than 120, which indicates that the compound combination can improve the prevention and treatment effect on orchid root rot. In addition, the fungicidal composition contains two effective ingredients, which can delay the generation and development of pathogenic fungi resistance and overcome the problems existing in long-term use of single component fungicides. In summary, the fungicidal composition can be used for developing fungicides for preventing and treating orchid root rot.

The invention discloses a virens and white beard fungus strain and application thereof, and belongs to the technical field of biology. The preservation number of the white beard virens SJ-50F is CCTCC (China Center For Type Culture Collection) NO: M 20251911, and the white beard virens SJ-50F has a remarkable inhibition effect on a rice sheath blight disease pathogenic bacterium rhizoctonia solani YM-Q-7. According to the invention, an in-vitro confrontation culture and potting verification method is adopted, which proves that the virens SJ-50F can inhibit the growth of germs, a plate confrontation experiment shows that the hypha growth inhibition rate of YM-Q-7 reaches 82.36%, and the hypha growth inhibition rate of fermentation supernate of the virens SJ-50F to YM-Q-7 reaches 90.79%.

The present invention belongs to the field of microbial technology and discloses Streptomyces sp. Y309 and its application. The Streptomyces Streptomyces sp. Y309, with the preservation number GDMCC No: 64527, has a strong ability to synthesize secondary metabolites and can produce siderophores, IAA, etc. This strain also has the potential for plant growth promotion and disease control. Strain Y309 has strong antibacterial effects on 12 pathogenic fungi such as Fusarium oxysporum, Rhizoctonia cerealis, Monilinia fructicola, and Ceratocystis fimbriata, as well as 7 pathogenic bacteria such as Pseudomonas syringae pv. lachrymans and Bacillus cereus. It has good control effects on wheat sharp eyespot, tomato gray mold, and pepper fusarium wilt. The fermentation broth of strain Y309 can significantly promote the germination of wheat seeds and the growth of seedlings, and can improve the agronomic traits such as plant height, dry weight, and leaf area of maize seedlings in different saline-alkali soils, showing good application prospects.

The present application provides a kind of compound biocontrol agent and its preparation method and application technology, and it is composed of 1000ml of fermentation mixed liquor of multiple strains of biocontrol bacteria mixed in equal volume ratio and 0.5%-1.5% stabilizer with complementary mechanism and target.The fermentation concentrated solution of multiple strains of bacteria is prepared in fermentation medium to obtain the present application, which is used for preventing and controlling fusarium, pythium, phytophthora, rhizoctonia solani, ralstonia solanacearum, erwinia carotovora, streptomyces scabiei, xanthomonas campestris and other plant pathogenic bacteria and nematodes, which can inhabit in soil for a long time and spread through soil, and one or several of them can cause plant soil-borne diseases.The preparation process of the present application is not affected by too many chemical and physical factors, the activity of live bacteria and metabolites is high, the average control effect is 78%-85%, the application effect is good;The production process is simple, energy and auxiliary materials are saved, and the production cost is low.

The invention discloses streptomyces alboflavus (with the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.35588) for preventing and treating muskmelon fusarium wilt, and belongs to the field of biological prevention and treatment. The strain is high in sporulation quantity and strong in colonization capacity, pathogenic bacteria are inhibited and growth is promoted through antagonism, secondary metabolites, induction system resistance and other mechanisms, the potting control effect reaches 86.3%, and the effect lasts for 21 days. The streptomyces albidoflavus not only can prevent and treat fusarium wilt of muskmelons, but also has a broad-spectrum inhibition effect on fusarium wilt of cucumbers, watermelons and tomatoes and soil-borne diseases such as pepper phytophthora blight and rhizoctonia solani, and can improve rhizosphere microecology and promote reproduction of effective microbial communities. The biocontrol microbial agent is a pure biological agent, is pollution-free and nuisanceless, and can remarkably reduce the use of chemical pesticides, relieve continuous cropping obstacles and promote green development of the watermelon and melon industry.

The invention relates to a method of infestation of a plant by phytopathogenic microorganisms of the Fusarium genus, the Rhizoctonia genus or the Alternaria genus, which comprises applying, in any desired sequence or simultaneously, on the plant, the locus thereof or its propagation material, a combination or composition comprising as component (A), a compound of formula (A-1) and, as component (B), a compound of formula (B-1). Also disclosed are compositions suitable for use in the invention.

The invention discloses application of any compound of 8-substituted berberine derivatives in prevention and treatment of agricultural diseases. A biological activity test shows that the derivative has a significant effect on four plant pathogenic bacteria such as Xanthomonas oryzae pv. Oryzae, Xanthomonas citri, pseudomonas solanacearum and Ralstonia solanacearum, and four plant pathogenic fungi such as rhizoctonia solanacearum, sclerotinia sclerotiorum, botrytis cinerea and fusarium graminearum. The compound shows certain inhibitory activity on pathogenic bacteria of rice bacterial leaf blight, pathogenic bacteria of citrus canker, rhizoctonia solani, sclerotinia sclerotiorum, botrytis cinerea and pine wood nematodes, and has a good inhibitory effect on pathogenic bacteria of rice bacterial leaf blight, pathogenic bacteria of citrus canker, rhizoctonia solani, sclerotinia sclerotiorum, botrytis cinerea and pine wood nematodes. The compound is low in preparation difficulty, raw materials are cheap and easy to obtain, and the compound is expected to be developed into a novel plant disease resistant medicine.

This invention belongs to the field of microbial control technology, specifically relating to a biocontrol bacterium for soybean root rot, a microbial agent, its preparation method, and its application, which can improve soybean yield and oil content. The biocontrol bacterium is *Alcaligenes faecalis* (Factophytes). Alcaligenes faecalis A new strain, named GY16, was deposited at the China Center for Type Culture Collection (CCTCC) on November 12, 2025, with accession number CCTCC M 20252536. This alkali-producing bacterium, GY16, exhibits a specific affinity for soybean, enabling it to colonize soybean roots and effectively control soybean root rot. GY16 also promotes soybean plant growth, increases soybean yield, and improves seed oil content. Inoculants prepared using GY16 can replace pesticides, offering a green, environmentally friendly, and pollution-free alternative that positively contributes to building a sustainable farmland ecosystem.

The invention discloses a rhizoctonia solani fusion group AG-3 basidiospore separation method, and belongs to the technical field of biology, the rhizoctonia solani fusion group AG-3 basidiospore separation method comprises the following steps: S1, preparing a rhizoctonia solani fusion group AG-3 spore suspension; and S2, collecting tender tobacco leaves, disinfecting, inoculating the spore suspension obtained in the step S1 on the disinfected tobacco leaves, culturing, regularly sampling and observing, and separating and purifying the scabs again after the scabs are observed, so as to obtain a bacterial strain which is a newly formed basidiospore bacterial strain after spore germination. The invention discloses a method for inducing rhizoctonia solani fusion group AG-3 basidiospore by using tobacco leaves, the whole separation method is simple to operate, and analysis and research on pathogenicity, pathogenic mechanism, polygene systematics and genetic diversity of a rhizoctonia solani fusion group AG-3 single spore strain are facilitated.

The invention relates to the technical field of bacteriostatic preparations, in particular to mugwort essential oil as well as a preparation method and application thereof. Mixing mugwort with a sodium chloride solution, and soaking to obtain a soaked material; the material-liquid ratio of the soaked material is 4-12 mL / g; the mass percentage content of sodium chloride in the sodium chloride solution is 5-20%; the soaking time is 1-4 hours; distilling the soaked material, standing and layering distillate, and collecting upper-layer essential oil to obtain artemisia argyi essential oil; the distillation time is 1 to 5 hours. The mugwort essential oil provided by the invention has a relatively good inhibition effect on the growth of common plant pathogenic fungi such as rhizoctonia solani, sclerotinia sclerotiorum and fusarium oxysporum, so that the mugwort essential oil is used as a biological bactericide in future agricultural production, and the effect of preventing and treating diseases can be achieved to a certain extent.

The invention belongs to the technical field of agricultural microorganisms, and particularly relates to pseudomonas aeruginosa and application thereof. The invention discloses Pseudomonas aeruginosa R5-2, and the number of the Pseudomonas aeruginosa R5-2 is CGMCC (China General Microbiological Culture Collection Center) No.34796. The invention further discloses a preparation method of the Pseudomonas aeruginosa R5-2. The strain can secrete various active substances such as siderophores and chitinase, and can effectively inhibit growth of various pathogenic bacteria such as fusarium oxysporum, verticillium dahliae, rhizoctonia solani and fusarium graminearum. Experiments show that a fungicide containing the strain has a remarkable prevention and treatment effect on lycium barbarum root rot and tomato fusarium wilt caused by fusarium oxysporum. The invention provides a novel and environment-friendly microbial resource for preventing and treating soil-borne fungal diseases of crops such as medlar, tomato and the like, and has important application value.

The present invention provides a method for detecting fungal DNA in a turfgrass sample using a loop-mediated isothermal amplification (LAMP) assay containing primers for fungal DNA of at least one turfgrass pathogenic fungus, the present invention relates to a method for LAMP detection of lawn pathogenic fungi selected from the group consisting of: Sclerotinia colletotrichum, Rhizoctonia solani species, Pythium aphanidermatum, Cyclotheca graminearum species, Gerlachia nilaparis species, Pseudomonas aeruginosa, Colletotrichum graminearum, Colletotrichum gloeosporioides, and Pythium ultimate variants, the method comprising: subjecting a lawn sample to an LAMP reaction, wherein the LAMP reaction uses a primer set of four or more nucleic acid sequences, each primer in the set having from 15 to 50 nucleic acids. The primers useful in the method are selected from specifically selected internal transcriptional spacers or genes of the target fungi to provide improved assay results.

The invention relates to the technical field of biology, in particular to a defensive protein derived from konjak and having broad-spectrum antibacterial activity, a coding gene and application of the defensive protein and the coding gene. According to the invention, the defensive protein is obtained from konjak for the first time, and the defensive protein has an obvious inhibition effect on multiple fungi (rhizoctonia solani, fusarium oxysporum, fusarium aromatic, fusarium solani and phytophthora nicotianae) and bacteria (bacillus cereus and ralstonia solanacearum). The defensive protein has wide application prospects in the fields of food, hygienic products, cosmetics, biopesticides, biological feed additives or natural food preservatives and the like.

The invention provides application of an OsNAC15 gene in improving resistance of rice to rhizoctonia solani, and belongs to the technical field of biology. The invention provides application of a reagent for inhibiting the expression of the OsNAC15 gene in improving the resistance of rice to rhizoctonia solani or improving the resistance of rice to sheath blight, provides negative regulation of the resistance of the rice to rhizoctonia solani by the OsNAC15 for the first time, and supplements the function of the OsNAC15 in interaction of the rice and rhizoctonia solani and a disease-resistant pathway for regulating a PR gene by an NAC transcription factor; and a new thought is provided for research on a rice-rhizoctonia solani interaction mechanism.

The application discloses a Rosa chinensis disease prevention and growth promotion bacterium LX6 strain and application thereof, and belongs to the field of microorganism strains and application thereof. The Rosa chinensis disease prevention and growth promotion bacterium LX6 is preserved in the China General Microbiological Culture Collection Center on May 16, 2024, and has a preservation number of CGMCC No. 30657 and a classification name of Pseudomonas fluorescens. The bacterium strain has the ability to resist high-concentration salt ions and various heavy metal ions. The bacterium strain can inhibit the growth of a Rosa chinensis black spot pathogen, i.e., Discosia rosea, and can also antagonize the growth of plant pathogenic fungi, i.e., Colletotrichum gloeosporioides, Rhizoctonia solani, Fusarium oxysporum and Fusarium equiseti, so as to prevent and treat the Rosa chinensis black spot and powdery mildew, and promote the growth and flowering of the Rosa chinensis. The application provides a fine biocontrol strain for preventing and treating the diseases of the Rosa chinensis and promoting the growth of the Rosa chinensis, and has important significance for green prevention and control technology of the diseases of the Rosa chinensis and sustainable development of the Rosa chinensis industry.

The application provides a method for screening soybean Cercospora sojina blight response genes based on transcriptome analysis, which comprises the following steps: selecting pods of soybean Cercospora sojina blight infected plants and healthy plants planted in the field, performing transcriptome sequencing, screening differential expression genes of soybean responding to Cercospora sojina blight, analyzing biological pathways of the differential expression genes in the Cercospora sojina blight infection process, performing protein interaction analysis, screening interaction core genes, comparing sequences, performing transcript from scratch assembly, analyzing differential variable splicing events and exon usage differences through integration analysis, analyzing post-transcriptional regulation network dynamic characteristics of key candidate genes of soybean responding to Cercospora sojina blight, and screening Cercospora sojina blight response genes of soybean. Four Cercospora sojina blight response genes of soybean are obtained, and expression characteristics in different soybean tissues are analyzed, which provides a theoretical basis for soybean Cercospora sojina blight resistance breeding.

The invention discloses a phenylaminothiazole derivative as shown in a formula I and application of the phenylaminothiazole derivative to prevention and treatment of plant diseases. The phenylaminothiazole derivative has the advantages of simple and easily available raw materials, simple preparation method, convenient post-treatment and high product yield, and the compound as shown in the formula I has broad-spectrum and efficient anti-plant fungus activity. The bactericidal composition especially has a good bactericidal effect on rhizoctonia solani, sclerotinia sclerotiorum, alternaria solani, botryosphaeria dothidea, apple black beancurd skin fungi, rhizoctonia cerealis, fusarium graminearum and colletotrichum gloeosporioides. # imgabs0 #