7 results about "Gummy stem blight" patented technology

The invention provides streptomyces LZZY-S3 and application thereof, and belongs to the field of microorganisms. The streptomyces LZZY-S3 provided by the invention enriches strains for biological control, and realizes the dual functions of plant pathogenic bacterium resistance and plant growth promotion. The streptomyces LZZY-S3 has a broad-spectrum fungus inhibition function and can be applied to plant pathogenic bacterium resistance; pathogenic bacteria include: European tea leaf disease pathogen, Botryosphaeria spp., Gibberella zeae pathogen, fusarium oxysporum pathogen, wheat root rot pathogen, rice seedling rot pathogen, pumpkin gummy stem blight pathogen, wheat stem rot pathogen, Trichothecium roseum, grape white rot pathogen, and Colletotrichum graminum pathogen. The pathogenic bacteria include: European tea leaf disease pathogen, Botryosphaeria spp. Wherein the inhibition rate of tea cake disease germs reaches 91.2%. The streptomyces LZZY-S3 can also be applied to plant growth promotion, preparation of nitrogen-fixing bacterial agents, preparation and production of ACC deaminase bacterial agents and the like.

The present application belongs to the technical field of pesticides, and particularly relates to a fungicide composition for preventing and treating vine gummy stem blight. The fungicide composition for preventing and treating vine gummy stem blight is prepared by compounding thymol with monensin sodium or physcion methyl ether as effective components. The fungicide composition of the present application has different fungicidal mechanisms of thymol, monensin sodium and physcion methyl ether, and the combination of the three components can delay the accumulation and development of pathogenic fungi resistance, and effectively overcome the problems existing in the prevention and treatment of vine gummy stem blight by using single-component pesticides. In addition, the effective components of the fungicide composition of the present application have a synergistic effect on vine gummy stem blight, can improve the prevention and treatment effect on vine gummy stem blight, help to reduce the application dose of the pesticide, and effectively overcome the problems of pesticide residue exceeding the standard and environmental pollution. Furthermore, thymol, monensin sodium and physcion methyl ether in the fungicide composition of the present application are environmentally friendly and green.

The invention discloses application of a motherwort herb extract in prevention and treatment of muskmelon gummy stem blight. A preparation method of the motherwort herb extract comprises the steps of motherwort herb raw material treatment, organic solvent extraction and concentration. The herba leonuri extract can remarkably inhibit the activity of muskmelon gummy stem blight germs, is a plant extract which is good in biocontrol effect and free of pollution, and has wide development and application prospects.

The invention discloses a plant endophyte Microcera larvarum ML-5 and application of the plant endophyte Microcera larvarum ML-5 in prevention and treatment of carya illinoensis diseases, and belongs to the technical field of microorganism application. The preservation number of the plant endophyte is CCTCC (China Center for Type Culture Collection) NO: M 2025636, and the preservation number of the plant endophyte is CCTCC NO: M 2025636. The compound can effectively inhibit carya illinoensis black spot colletotrichum gloeosporioides, carya illinoensis leaf spot alternaria, fusarium oxysporum, white rot, fusarium oxysporum and watermelon gummy stem blight. The plant diseases caused by the pathogenic bacteria can be prevented and treated. The plants can be colonized in the plants to form a symbiotic relationship with the plants, so that the immunity of the plants is enhanced, and invasion of pathogenic bacteria is effectively resisted. The endophytic fungi can promote plant growth, improve yield and quality, and bring sustainable development to agricultural production. Therefore, prevention and treatment of diseases by using the plant endophytic fungi is an important direction of agricultural green prevention and control in the future.

The invention discloses a compound bactericide and application thereof, the bactericide is a water suspending agent, the components of the bactericide comprise fluopyram, difenoconazole and auxiliary components, and the mass ratio R of fluopyram to difenoconazole in the bactericide ranges from 1: 1 to 1: 15. The compound bactericide is used for preventing and treating cucumber powdery mildew and watermelon gummy stem blight. The composition can delay the drug resistance process, reduce the dosage, lower the use cost and relieve the environmental pollution, and has the gain effect of compound addition.

The invention discloses a plant growth substance, which is prepared from the following components in percentage by weight: 30 to 40 percent of compound microbial agent, 15 to 20 percent of dung beetle extract, 30 to 40 percent of yeast liquid and 20 to 30 percent of animal claw shell amino acid aqueous solution, the compound microbial agent is prepared from the following components in percentage by weight: 20 to 35 percent of bacillus mucilaginosus, 20 to 35 percent of bacillus megatherium, 20 to 30 percent of photosynthetic bacteria, 15 to 25 percent of azotobacter chroococcum and 15 to 25 percent of trichoderma harzianum. According to the present invention, the plant resistance can be effectively improved, and the plant diseases such as powdery mildew, damping off, root rot, gummy stem blight, sclerotiniose, verticillium wilt, bacterial wilt, fruit rot, downy mildew, virus disease, root-knot nematode and the like caused by fungi, bacteria and viruses can be inhibited; the use of chemical fertilizers and pesticides can be obviously reduced, the ecological environment is improved, the crop yield is increased, and the planting cost is reduced; the problems of pesticide residue, pesticide harm and high heavy metal residue are thoroughly solved; original quality and taste of crops are restored, and agricultural product quality is improved.

The application discloses a functional marker for identifying resistance of melon to gummy stem blight, which is an InDel molecular marker with a nucleotide sequence fragment shown in SEQ ID NO:1, is located in a CDS region of melon resistance to gummy stem blight, and is co-separated with a melon resistance gene to gummy stem blight. The application also discloses a method for identifying resistance of melon to gummy stem blight by using the InDel molecular marker. The application can be used for identifying melon germplasm materials resistant to gummy stem blight, and has important application value in melon breeding against gummy stem blight and functional marker assisted selection.