36results about How to "Control bacterial wilt" patented technology

The invention discloses a microcapsule for preventing and treating plant diseases. The microcapsule contains pseudomonas fluorescens, a protective agent and a carrier; and the protective agent is selected from one or two or more of maltodextrin, sodium caseinate and sodium carboxymethyl cellulose. The invention further discloses a preparation method and application of the microcapsule. The microcapsule containing the pseudomonas fluorescens is formed by using liquid fermentation to produce the pseudomonas fluorescens serving as an effective component and organically compounding the carrier, the protective agent and the pseudomonas fluorescens. The microcapsule disclosed by the invention can be used for preventing and treating various plant soil-borne diseases and particularly has a bettereffect for preventing and treating vegetable bacterial wilt and plant wilt; in addition, compared with a living bacterial preparation produced by using a traditional method, the microcapsule has stronger vitality and stress tolerance as well as more effects and functions and is more suitable for production application. The problems that large-scale production cannot be realized and dust is generated in production and application processes due to short shelf life and high death rate during processing of a current biopesticide containing the pseudomonas fluorescens are solved.

The invention provides a Pestalotic acid compound with antibacterial activity. Hyperparasitism Pestalotiopsis neglecta strains are cultured in a fermented mode, extracted and separated to obtain the compound. The Pestalotic acid compound is easy to obtain, has high antibacterial activity and can be used as an antibacterial agent for preventing and controlling plant bacterial wilt, and a new path is provided for developing antibacterial agents and preventing and controlling plant diseases.

The invention belongs to the field of microbial pesticide preparation and provides a lipopeptid-kaolin composite biocontrol agent and a preparation method and an application thereof. The composite biocontrol agent is composed of lipopeptid, exfoliated kaolin and water, wherein mass percent of lipopeptid and exfoliated kaolin is 0.1wt% and 2wt% respectively. The preparation method of the lipopeptid-kaolin composite biocontrol agent comprises the following processes: (1) preparation of a lipopeptide powder; (2) preparation of exfoliated kaolin; and (3) acquisition of the lipopeptid-kaolin composite biocontrol agent. In the lipopeptid-kaolin composite biocontrol agent, stability of lipopeptide is enhanced by the combination of exfoliated kaolin and lipopeptide, action time of lipopeptide is prolonged, control efficiency of controlling tomato bacterial wilt is improved effectively, and plant growth of tomato is promoted. By the method, problems such as high production cost of lipopeptide, low output, poor stability, short effectiveness time, restricted effective development and utilization in the prior art are solved, and effects of a tomato bacterial wilt control agent prepared from the biological composite material are improved.

The invention discloses a bactericidal composition containing azoxystrobin, a pesticide with the composition, and application of the composition. The bactericidal composition is composed of azoxystrobin and cuppric nonyl phenolsulfonate at the mass ratio of 1:20 to 20:1 and at the preferable ratio of 1:10 to 10:1. The composition is an effective ingredient and can be combined with acceptable auxiliary ingredients in the pesticide to form the corresponding bactericidal pesticide. Experiments prove that after being compounded, the azoxystrobin and the cuppric nonyl phenolsulfonate can generate a remarkable synergistic effect in the prevention and cure of fruit and vegetable crop diseases such as cucumber downy mildew, bacterial angular leaf spot or cucumber blight, the resistance to drugs can be delayed, the amount of single dosage is reduced, the cost is lowered, and the applicable range can be expanded.

The invention discloses microorganism organic fertilizer special for corn. The microorganism organic fertilizer is prepared from the following raw materials in parts by weight: 13 to 15 parts of castor cakes, 9 to 11 parts of wormcast, 2 to 4 parts of duck egg shell, 3 to 5 parts of cottonseed hull, 2.4 to 2.6 parts of scarp, 1.6 to 1.8 parts of gingko biloba testa, 3.1 to 3.3 parts of pepper leaves, 3.4 to 3.6 parts of bamboo leaves, 4.1 to 4.3 parts of distillers grains, 0.6 to 0.8 part of algin, 0.6 to 0.8 parts of ox horn, 0.3 to 0.4 part of compound microorganism bacteria, 1.3 to 1.5 parts of bone oil, 2.4 to 2.6 parts of swill, 3.2 to 3.4 parts of humus and 2.1 to 2.3 parts of dolomite. The microorganism organic fertilizer disclosed by the invention is scientific and reasonable in formula, effective nutrient components of all raw materials are in mutual integration and have the functions of supplementing each other, the physical property and the biological activity of soil can be improved, and high ripening rate and full grains are obtained through enhancing the absorption and utilization of the corn on the nutrient components; bacterial wilt and dichocrocis punctiferalis of the corn can be effectively prevented, so that the yield of the corn is increased, and higher economic profit is brought for farmers.

The invention belongs to the field of agricultural pesticides, and particularly relates to a thifluzamide-contained wettable powder. The wettable powder comprises the components of thifluzamide, ethylicin, a carrier and a surface active agent, wherein the weight content of thifluzamide is 1%-20%, and a weight ratio of thifluzamide and ethylicin ranges from 5:1 to 1:5. The compound is mainly used for preventing and treating gramineous crop rice sheath blight disease, rice blight, rice blast, wheat sharp eyespot, rust disease, stinking smut, apple ring rot disease, bacterial wilt and the like. The compound has the characteristics of remarkable synergistic effect, broad-spectrum bactericide, long effect-persistent time, safety to crops and the like.

The invention relates to use of an Aspergillus niger effervescent tablet to control of tobacco bacterial wilt. The Aspergillus niger xj is separated by Fungi resources institute of Guizhou University, and is currently preserved at China Center for Type Culture Collection (address: Wuhan University, Wuhan China) with a preservation number of CCTCCNO:M206021. The Aspergillus niger effervescent tablet contains Aspergillus niger, an adhesive, a lubricant, citric acid and sodium bicarbonate. The effervescent tablet has good foaming capacity, disintegration time and hardness, and has better inhibiting effect on tobacco bacterial wilt.

The invention belongs to the field of pesticides, and in particular relates to a thifluzamide-containing wettable powder and a production method thereof. The wettable powder consists of thifluzamide, ethylicin, a carrier and a surfacetant, wherein the weight content of thifluzamide is 1%-20%; and the weight ratio of the thifluzamide to the ethylicin is (5:1)-(1:5). The composition is mainly used for preventing and treating gramineous crop rice sheath blight disease, seedling blight, rice blast, wheat sharp eyespot, rust disease, stinking smut, ring rot of apple, bacterial wilt and the like. The composition has obvious synergistic action, and has the characteristics of broad spectrum of sterilization, long time of duration, safety to crops and the like.

The invention discloses environment-friendly inorganic-organic compound fertilizer and belongs to the technical field of fertilizers. The environment-friendly inorganic-organic compound fertilizer comprises, by weight, 40-50 parts of urea, 12-15 parts of ammonium sulfate, 30-40 parts of potassium sulfate, 50-60 parts of guano, 1-3 parts of an insecticide, 2-4 parts of a plant growth regulator, 3-5 parts of glycerol, 15-18 parts of starch, 1-2 parts of borax, and 0.5-1 part of Bacillus megaterium powder. The invention also discloses a preparation method of the environment-friendly inorganic-organic compound fertilizer. The environment-friendly inorganic-organic compound fertilizer can provide nutrients for plants and can also ensure quick and heathy growth of the plants.

The invention discloses a biocontrol strain YW-1 as well as preparation of a biocontrol inoculant and an application thereof, and belongs to the technical field of plant protection. The bacterial strain is Myroides odoratimimus, and the preservation number of the bacterial strain is CGMCC NO. 20620; the biocontrol strain YW-1 is subjected to shaking culture in an LB culture solution for 12-16 hours at 30 DEG C and 180 rpm to enable the total concentration of viable bacteria in a bacterial suspension to be 1*10<9>-1*10<10> CFU/mL, then the bacterial suspension is centrifuged for 10 min at 6000rpm to collect thalli, and the thalli are diluted with sterilized water to prepare the biocontrol microbial agent with the concentration of 10<7> CFU/mL. When the host plants are transplanted, the fungus is used to irrigate the roots of 20mL/plant, which can effectively preventvarious soil-borne diseasessuch asmelon wilt, tomato and pepper bacterial wilt and pepper phytophthora blight, compared with a blank control group, the prevention and treatment effects can reach 50% or above.