46 results about "Blast disease" patented technology

The invention discloses a method and a system for detecting rice panicle blast based on a deep convolutional neural network. The method comprises the following steps: acquiring a hyperspectral image of outdoor rice panicles and performing panicle blast disease calibration; performing data preprocessing and data enhancement on the hyperspectral image of the rice panicles; establishing a deep convolutional neural network model and optimizing model parameters with a stochastic gradient descent algorithm; detecting the hyperspectral image of the rice panicles to be tested with the trained deep convolutional neural network model, and judging whether the rice panicles are infected by the panicle blast disease or not. The system comprises a hyperspectral camera, a computer, a tripod and a reflection board, wherein the rice panicles are hung on the reflection board; the hyperspectral camera is fixed on the tripod, is connected with the computer, and has a lens aiming at the rice panicles on the reflection board. The method and the system provided by the invention can provide technical support for predicting the outdoor rice panicle blast disease and can also play an instructive role in rational and precise application and management of water and fertilizer, pesticide or other agricultural resources in a production process.

The invention relates to antagonistic bacteria capable of preventing and curing continuous cropping melon blast disease and microorganism organic fertilizer produced by the same, belonging to the technique of agricultural intensive production. In the invention, two strains of antagonistic bacteria which have remarkable antagonistic effect on the pathogenic fungi of continuous cropping melon blast disease (bacillus polymyxa NJY10 and bacillus subtilis NJY-IVI) are obtained by separation; the antagonistic bacteria is mixed with the organic fertilizer to be prepared into microorganism organic fertilizer, wherein the fertilizer comprises more than 1*108 antagonistic bacteria per gram, 4-5% of total nitrogen content, 6-10% of total nitrogen, phosphorous and potassium nutrient and 30-35% of organic matter content. Experiments show that after being fertilized into the soil, the microorganism organic fertilizer can lead the antagonistic bacteria to reproduce rapidly and form a superior group in the soil, the biological prevention and cure rate towards the melon blast disease in the continuous cropping soil with serious melon blast disease can reach over 80%; and in the soil without forming continuous cropping impediment, long-term use of the microorganism organic fertilizer of the invention can prevent and cure the occurrence of melon blast disease substantially.

The invention discloses a microscopic image detection and recognition method for a rice blast fungus spore based on a support vector machine. The method comprises the steps of (1) image preprocessingincluding image background correction, median filtering processing and image enhancement processing, (2) image segmentation including binarization operation, morphological operation and edge detectionof a preprocessed image and the obtainment of a graph contour of a suspected rice blast fungus spore, and (3) support vector machine detection and identification including the extraction of most representative shape feature parameters and texture feature parameters from the graph contour of a suspected rice blast fungus spore, the training of a support vector machine classifier model with the shape feature parameters and texture feature parameters as input vectors, and the detection and identification of the rice blast fungus spore by using the trained support vector machine classifier model.According to the method, the rapid and accurate identification of the rice blast fungus spore can be achieved, and a technical support can be provided for the early detection and the discrimination of a disease degree of a rice blast disease.

The invention discloses a rice leaf blast disease resistance identification grading method based on multi-scale hyperspectral image processing. Hyperspectral images of rice leaves with different resistance grades infected by rice blast are colleted by a hyperspectral imaging system. Spectral features of rice leaf blast disease spots and a normal position area of interest are analyzed at leaf scale, two wave bands with greater differences are obtained, two-dimensional scatter plot analysis of the two wave bands is made, and hyperspectral images only containing the disease spots are extracted. And then principal component analysis (PCA) is made at a disease spot scale, a principal component image which is beneficial for segmentation of brown disease spots and grey disease spots is obtained, and the grey disease spots are segmented out through an OTSU method. Finally, rice leaf blast disease resistance grading is conducted according to two parameters of elongation rate and suffered rate. With the rice leaf blast disease resistance identification grading method based on the multi-scale hyperspectral image processing, workload of resistance identification can be reduced, accuracy of resistance evaluation is improved, reasonable promotion and use of new disease-resistant varieties are supplied with scientific basis, and detection of rice leaf blast disease degree in the field is supplied with research foundation.

The invention belongs to the field of the agricultural pesticides and fungicides, in particular discloses a replaced aryl ether compounds and the preparation and application. The replaced aryl ether compounds of the invention are shown as the general formula (I): the general formula (I) compounds of the invention have the broad-spectrum activity--the compounds have very favorable control effects on the diseases such as the grape downy mildew, rice sheath blight, rice-blast disease, tomato late blight, powdery mildew, cucumber powdery mildew, cucumber downy mildew, cucumber gray mold, etc. The compounds of the invention simultaneously have very good insecticidal activity, have effects on a plurality of pests such as the armyworm, the diamondback moth, etc. and are very suitable for the integrated control of the pests on various crops.

The invention discloses a method for distinguishing a rice blast disease in rice based on aerial photographs of a farmland. The method comprises the steps of image preprocessing, image segmentation, extraction and identification of diseased spots and calculation of damage percentage. In the step of image segmentation, color component combined images are segmented by adopting an Otsu method according to background of the images and diseased spot color characteristics; in the step of extraction and identification of the diseased spots, specially, the extraction and identification of the diseasedspots can be used for identifying that the diseased spots are the diseased spots of the rice blast disease or natural yellowing diseased spots; and finally, by combining with national grading standard, the grades of disease disasters of the rice blast disease are determined according to the area proportion of the diseased spots of the rice blast disease on the leaf blades. According to the methoddisclosed by the invention, acquired photographs with complicated backgrounds can be processed preferably, interference is reduced, the type of the diseased spots can be accurately distinguished, andthe disaster grade of the rice blast disease can be accurately determined.

The invention discloses a medicine for preventing and treating livestock blast diseases, which is made from Melastoma dodecandrum, dandelion, Herba Lobeliae Chinensis, honeysuckle, radix isatidis, rhizoma anemarrhenae, Bupleurum, pomegranate rind, plantain, cornu saigae Tataricae, terramycin, sulfamethoxazole compound, and chloromycetin. The medicine has the efficacies of clearing heat, purging fire, sterilizing, detoxifying, dissipating swollen symptom as well as lump, stopping blooding as well as relieving diarrhea, inducing diuresis for treating stranguria, calming liver-wind, treating diarrhea with astringents, evacuating and reducing fever, producing fluid as well as moisturizing dryness, and removing heat from the blood as well as relieving sore throat. The medicine has better effects of preventing and treating the blast diseases of a plurality of domestic animals and fowls such as pigs, chickens, ducks, gooses, etc., and further has certain curative effects on the blast diseases of cattle, sheep and dogs and the diseases such as bird flu, aftosa, etc.

The invention relates to a purpose of a sterilization agent composition for preventing and treating rice diseases. The composition consists of two active substances and agriculture acceptable pesticide auxiliary agents, wherein the ingredient a is epoxiconazole, and the ingredient b is prochloraz (or agriculture acceptable metal salt type compounds of the prochloraz). In the active ingredients, the weight ratio of the epoxiconazole to the prochloraz is 0.03 to 65, and is preferably 0.05 to 55. The sterilization agent composition can be used for effectively preventing and treating rice blast diseases, rice sheath blight diseases and rice brown spot diseases. The composition obtained through compounding the ingredient a and the ingredient b has the positive effects in aspects of fungus resistance delay, prevention and treatment effect improvement and the like, and high sterilization activity is shown. Experiments prove that the composition provided by the invention has the characteristics that the use cost is low, the use is safe on plants and environment, and the like.

The invention discloses stenotrophomonas rhizophila S11 capable of preventing and treating rice blast diseases of rice. The stenotrophomonas rhizophila S11 is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC No.18346. The invention discloses an application of the stenotrophomonas rhizophila S11 to preparation of medicines for preventingand treating the rice blast diseases of the rice. Besides, the invention discloses an antibiological inoculant capable of preventing and treating the rice blast diseases of the rice, a preparation method of the antibiological inoculant, and an application of the antibiological inoculant to prevention and treatment of the rice blast diseases of the rice. The antibiological inoculant contains the stenotrophomonas rhizophila S11. Through determination by a flat face-to-face culturing method, the inventor of the invention finds that the S11 strain has high antagonistic action on magnaporthe oryzae / pyricularia oryzae, and the diameter of an inhibition zone can reach 44mm; and green house inoculation and field experiment both indicate that the S11 antibiological inoculant can effectively prevent and treat the rice blast diseases of the rice. Therefore, the stenotrophomonas rhizophila S11 strain disclosed by the invention can be used for biological prevention and treatment of the rice blastdiseases of the rice, and has great popularization and application prospects.

The invention discloses an immunofluorescent reagent used for detecting muscovy duck gosling blast diseases, which is characterized in that an anti-GPV hybridoma cell strain D11 strain is used for preparing anti-GPV monoclonal antibody, then the GPV monoclonal antibody is used for labeling fluorescein isothiocyanate (FITC) to prepare the immunofluorescent reagent used for detecting muscovy duck gosling blast diseases; the anti-GPV hybridoma cell strain D11 strain is preserved in CCTCC, the preservation date is April 15th, 2011, and the preservation number is C201120. The invention also discloses an application of the immunofluorescent reagent used for detecting muscovy duck gosling blast diseases in clinical quick diagnosis of the muscovy duck gosling blast diseases, and an application ofpositioning and identifying of goose parvovirus antigen in tissue cells.

Disclosed are a prothioconazole and fluopicolide containing sterilization composition and uses thereof. The sterilization composition uses prothioconazole and fluopicolide as main active components. The sterilization composition can be used for preventing and curing diseases of cereal, fruit trees and vegetables, has a relatively high synergistic effect, overcomes and delays drug resistance of pathogens, has a fast sterilization speed and a long persistent period, reduces the application cost, and has an obviously more excellent prevention and cure effect than the prevention and cure effect when prothioconazole and fluopicolide are separately used. The present invention can be used for preventing and curing fungal diseases on crops, especially a powdery mildew disease, a sheath blight disease, a wilt disease, a leaf spot disease, a rust disease, a rhizoctonia disease, a net blotch disease, a leaf blotch disease, a gray mold disease, a black spot disease, a brown spot disease, a black shank disease, a rice blast disease and a phytophthora disease, and has a better effect than the effect when prothioconazole and fluopicolide are separately used.

A rice blast disease resisting gene Pi1 tightly interlocked molecular marker R112865-1 and application thereof belongs to the field of molecular biology, relate to molecular markers, particularly to the rice blast disease resisting gene Pi1 tightly interlocked molecular marker R112865-1. The rice blast disease resisting gene Pi1 tightly interlocked molecular marker R112865-1 has a sequence shown as Seq ID No.1. The invention also relates to a primer for amplifying the rice blast disease resisting gene Pi1 tightly interlocked molecular marker R112865-1, application of the rice blast disease resisting gene Pi1 tightly interlocked molecular marker R112865-1 and the primer to rice blast disease resisting gene Pi1 positioning or rice genetic breeding, and a rice breeding method. The rice blastdisease resisting gene Pi1 tightly interlocked molecular marker R112865-1 and the amplification primer can well type rice blast disease resisting gene Pi1 and also can be applied to rice blast diseaseresistance molecular marker-assisted breeding to provide molecular assisted technical support for early determination and screening of rice blast disease resisting characters, thereby be of high significance in theories and practical guidance to acceleration of genetic breeding and improvement of rice varieties.

The invention is suitable for the technical field of breeding, and provides a breeding method of an anthocyanin-rich disease-resistant aromatic rice variety. According to the invention, a high-quality rice variety which is widely popularized at present and has excellent comprehensive characters and good resistance is hybridized and backcrossed with an anthocyanin-rich rice variety, molecular marker-assisted selection of a rice blast resistance gene and a fragrance regulation gene is carried out, rice blast and bacterial blight resistance is identified in combination with rice blast disease area identification and bacterial blight artificial inoculation identification, and the novel anthocyanin-rich rice strain with excellent yielding ability, disease resistance and comprehensive agronomic traits is obtained. According to the method, the genetic background of the purple rice variety is effectively improved by hybridizing the purple rice variety and the mainly-planted high-quality rice variety with excellent comprehensive agronomic traits; and meanwhile, molecular marker-assisted selection and pedigree breeding are combined, target genotypes and comprehensive agronomic traits are concerned in the whole breeding process at the same time, foreground selection and background selection are both considered, and the breeding process is improved.

The invention discloses Stenotrophomonas rhizophila S11 for preventing and treating rice blast, which is preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee, and the preservation number is CGMCC No.18346; and discloses Stenotrophomonas rhizophila Application of Bacillus sp. S11 in the preparation of medicines for controlling rice blast. At the same time, it also discloses a biocontrol agent for preventing and treating rice blast, a preparation method thereof, and an application in preventing and treating rice blast. The biocontrol agent includes the Stenotrophomonas rhizophilus S11. In the present invention, through the measurement of plate confrontation culture method, it is found that the S11 strain has a strong antagonistic effect on the rice blast fungus, and the diameter of the inhibition zone can reach 44mm; both greenhouse inoculation and field tests show that the S11 biocontrol fungus can effectively control rice blast. Therefore, the Stenotrophomonas rhizophilus S11 strain disclosed by the present invention can be used for biological control of rice blast, and has broad promotion and application prospects.

The invention discloses a primer set, a kit and a method for detecting the pathogenic variation of the rice blast fungus avirulence gene AvrPi9. SNP changes in the avirulent gene AvrPi9 of Magnaporthe grisea lead to premature termination of the coding of the AvrPi9 gene and transformation into a virulent gene. The primer set includes two pairs of primers, the first pair of primers is used to amplify the AvrPi9 gene fragment; the second pair of primers is used to identify whether there is a SNP that causes AvrPi9 to transform into a toxic gene after mutation. The invention provides two pairs of molecular markers of the avirulent gene AvrPi9 of Magnaporthe grisea. The molecular markers can be used to quickly establish a molecular detection system for the pathogenic variation of AvrPi9 in the natural population of Magnaporthe grisea. The distribution and dynamic changes in the population are used to guide rice blast resistance breeding in various regions and the rational distribution and rotation of varieties, so as to improve breeding efficiency and control the occurrence of rice blast more effectively, so as to design rice blast comprehensive new strategies for prevention.

The invention discloses a method for constructing a DCNN leaf blast classification model based on fusion features. The method comprises the following steps: S1, taking obtained different disease grade data of rice leaf blast as samples; s2, obtaining an optimal leaf blast classification feature; s3, constructing a rice leaf blast classification model; and S4, carrying out a training test on the rice leaf blast classification model in the step S3. On the premise of keeping the design concept of the ResNet network, the rice leaf blast classification model is established by adjusting the network depth and structure of the ResNet network and adding the BatchNorm layer and the Dropout layer, so that a scientific and theoretical basis is expected to be provided for rice leaf blast disease detection.

The invention discloses a rice blast and leaf blast condition forecast information collecting device which comprises a stand column and a mounting box body, wherein the mounting box body is arranged on the upper portion of the stand column, the stand column is further provided with a mounting frame, and the mounting frame is provided with a sunshine duration sensor used for collecting sunshine duration, a temperature and humidity sensor used for collecting temperature and humidity data, and a rain gauge that is used for collecting rainfall; a solar power supply assembly is arranged on the mounting box body and is used for continuously supplying power to the sunshine duration sensor, the temperature and humidity sensor and the rain gauge. The invention further discloses a rice blast leaf blast condition forecasting method, according to the method, the rice blast leaf blast condition index is forecasted through a formula, so that the rice blast leaf blast disease grade is judged, managers can scientifically prevent and control rice blast according to the disease grade, unnecessary pesticide application is reduced, pesticide residue is effectively reduced, the pollution to the environment is reduced, and the rice blast prevention and control management efficiency and the rice planting benefit are effectively improved.

The invention belongs to the field of the agricultural pesticides and fungicides, in particular discloses a replaced aryl ether compounds and the preparation and application. The replaced aryl ether compounds of the invention are shown as the general formula (I), wherein Ar represents Ar-1 or Ar-2. The general formula (I) compounds of the invention have the broad-spectrum activity--the compounds have very favorable control effects on the diseases such as the grape downy mildew, rice sheath blight, rice-blast disease, tomato late blight, powdery mildew, cucumber powdery mildew, cucumber downy mildew, cucumber gray mold, etc. The compounds of the invention simultaneously have very good insecticidal activity, have effects on a plurality of pests such as the armyworm, the diamondback moth, etc. and are very suitable for the integrated control of the pests on various crops.

The invention discloses a rice blast resistance locus 'Pi-jx' and its Indel marker primer and breeding application. The invention uses natural varieties as the positioning group, and locates a new rice blast resistance genetic locus 'Pi‑jx' on rice chromosome 12 through the method of genome-wide association analysis. On this basis, using the genome mixed pool Mutmap method in the resistant / susceptible variety F 2 The reliability of the Pi‑jx locus was further verified in the segregated population. Finally, polymorphic Indel molecular markers were designed for the genomic sequence near the disease-resistant site, and Pi-jx was introduced into susceptible varieties through molecular marker-assisted selection to improve the resistance of recipient parents to rice blast. The positioning and breeding application of the Pi-jx disease-resistant locus of the present invention provides new genetic resources for cultivating varieties with broad-spectrum resistance to rice blast.

The invention discloses a primer group, a kit and a method for detecting pathogenic variation of a magnaporthe grisea avirulence gene AvrPi9. The magnaporthe grisea avirulence gene AvrPi9 is subjected to SNP change, so that AvrPi9 gene coding is terminated in advance, and the gene is converted into a toxic gene. The primer group comprises two pairs of primers, wherein the first pair of primers is used for amplifying an AvrPi9 gene segment; and the second pair of primers is used for identifying whether SNP causing AvrPi9 to be converted into a toxic gene after mutation exists or not. The invention provides two pairs of molecular markers of magnaporthe oryzae non-toxic genes AvrPi9, a molecular detection system of AvrPi9 pathogenic variation in a magnaporthe oryzae natural population can be quickly established by utilizing the molecular markers, and the distribution of the genes in the field natural population and the dynamic change rule of the genes are understood and mastered. Therefore, rice blast disease-resistant breeding and reasonable variety layout and rotation in each region are guided, so that the breeding efficiency is improved, rice blast is more effectively controlled, and a new strategy for comprehensively preventing and treating rice blast is designed.

The invention relates to a method for selecting and breeding an indica rice restorer line with strong blast resistance and belongs to the technical field of crop genetics and breeding. The method involves using an indica restorer line parent (Huazhan) that is resistant to blast disease, has excellent comprehensive agronomic traits, strong advantages, and good combining ability as the donor parent of the rice blast resistance gene, and has no resistance to rice blast, excellent comprehensive agronomic traits, and superiority. Parent 2 (Fuhui 838), an indica restorer line with strong and good combining ability, was used as the recipient parent, crossed, and then parent 1 (Huazhan) was used as the recurrent parent for backcrossing once. Molecular markers were used to detect the Rice blast resistance genes such as Pi2, Pi54, Pid3, Pita and Pib, combined with agronomic trait selection and rice blast resistance identification results, bred a new restorer line with strong blast resistance, and then matched with different sterile lines, selected Breed high-quality and high-yield hybrid indica rice combinations that are resistant to rice blast, improve the rice blast resistance of the first generation of hybrids, and make them meet the needs of current rice production.

The invention discloses a Streptomyces griseus strain XZJ.SP12 which has strong antagonistic effect to pathogenic germs of rice sheath disease and rice blast disease by means of a method of inoculating points on a plate for prescreening. The strain is preserved in China Center for Type Culture Collection in Oct, 27th, 2009, with a preserving number of CCTCC No: M209236. The strain XZJ.SP12 has resistance to pathogenic germs of rice sheath disease and rice blast disease; seeondav metabolltes of the strain XZJ.SP12 can significantly inhibit growth of pathogenic germs of rice sheath disease and rice blast disease on the culture medium; in an infection test of rice sheath disease in fields, a control group has 67.8% infection index, however, the rice coated with the fermentation liquid of the strain has only 24.1% infection index, thereby showing that seeondav metabolltes of the strain XZJ.SP12 has a good resistance to the rice sheath disease and possesses an important intrinsic value to prevent rice diseases.

The herbicide-tolerant rice cultivar designated ‘CL153’ and its hybrids and derivatives are disclosed. CL153 is a novel, herbicide-resistant, high yielding, early maturing, semidwarf, long-grain rice cultivar with excellent grain yield, good grain quality, and produces plans with very good resistance to blast disease. This invention also pertains to methods for producing a hybrid or new variety by crossing the rice variety ‘CL153’ with another rice line, one or more times. This invention allows for single-gene converted plants of ‘CL153.’ This invention also provides regenerable cells for use in tissue culture of rice plant ‘CL153.’ The present invention provides a method for controlling weeds in the vicinity of rice.

The invention discloses a method and a system for detecting rice panicle blast based on a deep convolutional neural network. The method comprises the following steps: acquiring a hyperspectral image of outdoor rice panicles and performing panicle blast disease calibration; performing data preprocessing and data enhancement on the hyperspectral image of the rice panicles; establishing a deep convolutional neural network model and optimizing model parameters with a stochastic gradient descent algorithm; detecting the hyperspectral image of the rice panicles to be tested with the trained deep convolutional neural network model, and judging whether the rice panicles are infected by the panicle blast disease or not. The system comprises a hyperspectral camera, a computer, a tripod and a reflection board, wherein the rice panicles are hung on the reflection board; the hyperspectral camera is fixed on the tripod, is connected with the computer, and has a lens aiming at the rice panicles on the reflection board. The method and the system provided by the invention can provide technical support for predicting the outdoor rice panicle blast disease and can also play an instructive role in rational and precise application and management of water and fertilizer, pesticide or other agricultural resources in a production process.

The herbicide-tolerant rice cultivar designated ‘CL153’ and its hybrids and derivatives are disclosed. CL153 is a novel, herbicide-resistant, high yielding, early maturing, semidwarf, long-grain rice cultivar with excellent grain yield, good grain quality, and produces plans with very good resistance to blast disease. This invention also pertains to methods for producing a hybrid or new variety by crossing the rice variety ‘CL153’ with another rice line, one or more times. This invention allows for single-gene converted plants of ‘CL153.’ This invention also provides regenerable cells for use in tissue culture of rice plant ‘CL153.’ The present invention provides a method for controlling weeds in the vicinity of rice.

The invention provides a method for creating germplasm of low chalkiness and high blast resistance fragrant soft rice, comprising the following steps: using a high blast resistance fragrant soft rice line as the female parent, and using a high-quality long-grain fragrant japonica rice line as the parent Ben, hybridized to get F 1 seed; cultivate F 1 Seeds to obtain self-bred generation population F 2 seed; cultivate F 2 Seed, in F 2 Pigm, Wx-mq and GL7 gene homozygous and / or heterozygous lines were screened out from the lines, and the lines with long grain and good agronomic traits were harvested, and the seeds F of all lines were harvested. 3 ; breed F 3 Seed, in F 3 Among the strains, the pigm, Wx‑mq and GL7 genes are all homozygous, and the strains with long grains and good agronomic traits are screened out. The strains continue to be selfed for multiple generations and combined with rice blast resistance identification, and finally obtain low chalkiness. Baigao fragrant soft rice line resistant to blast. The invention adopts step-by-step molecular screening to realize high-efficiency transfer of genes with excellent appearance quality, thereby creating a new line of fragrant soft rice with low chalkiness and high blast resistance.

A bactericidal composition containing prothioconazole and isotianil. The active ingredients of the bactericidal composition are a two-component compound of prothioconazole and isotianil, and the rest are auxiliary components. Wherein the mass ratio of the active ingredients prothioconazole and Isotianil in the pesticide composition is 1-50:50-1, and the mass ratio of the active ingredients prothioconazole and Isotianil in the preparation is 1% ~80%, and the rest are auxiliary ingredients allowed and accepted in pesticides. The formulations of the pesticide composition of the present invention are emulsifiable concentrates, suspension concentrates, wettable powders, water dispersible granules, water emulsions, microemulsions, granules, and microemulsions. Capsules and water preparations are mainly used to control economic crops such as wheat, barley powdery mildew, sheath blight, fusarium wilt, leaf spot, rust, sclerotinia, net spot, moire and rice blast.

The invention relates to a purpose of a sterilization agent composition for preventing and treating rice diseases. The composition consists of two active substances and agriculture acceptable pesticide auxiliary agents, wherein the ingredient a is epoxiconazole, and the ingredient b is prochloraz (or agriculture acceptable metal salt type compounds of the prochloraz). In the active ingredients, the weight ratio of the epoxiconazole to the prochloraz is 0.03 to 65, and is preferably 0.05 to 55. The sterilization agent composition can be used for effectively preventing and treating rice blast diseases, rice sheath blight diseases and rice brown spot diseases. The composition obtained through compounding the ingredient a and the ingredient b has the positive effects in aspects of fungus resistance delay, prevention and treatment effect improvement and the like, and high sterilization activity is shown. Experiments prove that the composition provided by the invention has the characteristics that the use cost is low, the use is safe on plants and environment, and the like.