1359 results about "Leaf spot" patented technology

The invention relates to bacillus amyloliquefaciens NCPSJ7 and further relates to an application of the strain in treating plant diseases, diseases before and after harvesting fruits and vegetables as well as in preventing food-borne pathogenic bacteria and putrefying bacteria. The strain is preserved in China Center for Type Culture Collection (CCTCC) on March 22, 2013, wherein the preservation number is CCTCC NO: M2013098 and the strain is named as bacillus amyloliquefaciens NCPSJ7. The thallus and fermentation liquor of the strain disclosed by the invention has the effects of treating plant diseases caused by plant pathogenic fungus including antagonistic peach root rotten disease, fusarium wilt of cucumber, botrytis cinerea, jujube anthracnose, pear black spot, pear blue mould, apple brown rot, apple altermaria leaf spot, watermelon fusarium wilt and the like, as well as diseases after harvesting fruits and vegetables and food-borne pathogenic bacteria and putrefying bacteria including antagonistic staphylococcus aureus, salmonella paratyphi A, vibrio parahaemolyticus, yeast and the like; moreover, the bacillus amyloliquefaciens is broad in spectrum and antibacterial and great in potential in developing novel, efficient and natural biological control and biological preservative and fresh-keeping preparation.

The invention discloses a high-benefit planting method for positions under a polygonatum cyrtonema hua forest, comprising the following steps of: selecting soil, preparing the soil, propagating rootstalk, cultivating seedlings and transplanting, weeding in a cultivation way, topdressing, draining and irrigating, removing flowers, preventing insect diseases and harvesting. In a process of insect disease prevention, a high-efficiency fertilizer is adopted, so that the prevention rate is more than 95%. After the method is adopted, weeds and insects under the forest can be reduced, polygonatum cyrtonema hua can be planted under the forest, a resource under the forest can be sufficiently used, the income can be further improved, the water and soil loss can be reduced as well, a good ecological environment can be built, and one more selection can be provided for polygonatum cyrtonema hua planting ways; and when the fertilizer is applied on the surfaces of leaves, the used fertilizer not only can effectively prevent and cure a leaf spot disease, but also can reduce insect pests, and the prevention and cure rate is more than 95%, so that the quality of the polygonatum cyrtonema hua can be guaranteed, and the environment pollution can be avoided.

The invention relates to the field of fertilizers, in particular to a fertilizer for cultivating dicentra spectabilis, and provides a method for preparing the fertilizer for the dicentra spectabilis. After the fertilizer serving as a basic fertilizer is applied at one time, the basic nutritional requirement of the dicentra spectabilis in the whole growth period can be met; the fertilizer contains basic elements such as N, P, K and the like, various secondary and trace elements and a plant growth regulator, so that the requirement of the dicentra spectabilis on various elements in different growth periods can be met, and the growth and development of roots and leaves of the dicentra spectabilis are promoted; a bactericide is added in a formula, so that the fertilizer has the effects of killing bacteria and pests and preventing pest and disease damage, and has a good effect of preventing and treating possible leaf spot disease and scale insect disease of the dicentra spectabilis; and attapulgite is taken as an additive of an agricultural fertilizer and has peculiar physical properties, so that the metabolism of plants can be promoted, and the conversion rate of nutritional substances can be improved.

The invention relates to a bactericidal composition containing benziothiazolinone and difenoconazole based on the weight ratio of 1:80-80:1, preferably 1:10-10:1. The bactericidal composition can be prepared into water dispersible granules, wettable powder, suspension agent, water emulsion, microemulsion and emulisfying oil agent. The bactericidal composition has the advantages of rational components, treatment and protection effects, good bactericidal effect, reduced medication times, low medication cost, obvious synergistic effect rather than simple superposition of activity and bactericidal effect of the components, retarded resistance and good safety on crops, thus meeting the safety requirement for pesticide preparations; and the bactericidal composition has better prevention and treatment effects on alternaria leaf spots, scab, anthracnose, powdery mildew and leaf spots on crops such as vegetable, melon and fruit, fruit trees, flower and cereal.

The invention discloses a compound plant source disinfectant and a method for preparing the disinfectant. The disinfectant is made by the materials of cassia oil, sweetflag, sophora flavescens and eucalyptus oil of traditional Chinese medicines. The main effective components of the disinfectant are the cassia oil, the Beta-asarol and the matrine. After being extracted, the materials are matched with an accessory ingredient to be made into various missible oil, emulsion in water and other various preparations. The disinfectant has broad spectrum and excellent restraining effects on various plant pathogenicbacterias. The plant source disinfectant of the invention has the advantages of high efficiency, low mammalian toxicity; the harmful bacterias are difficult to generate drug fastness on the disinfectant. A field test shows that the control effect on the gen-seng leaf spot is better than that of 70 percent of mancozeb. The invention can be taken as an ideal and eco-friendly pesticide.

The invention discloses bacillus subtilis A16, which is preserved in China Center for Type Culture Collection (CCTCC) with CCTCC NO. 209105. The bacterial colony of the Bacillus subtilis A16 is oyster white on a beef extract peptone culture medium, has irregular shape and no luster, is not wet, has irregular edge, has diameter of 0.5-1cm, and has microfold surface, straight rod-shaped thallus and elliptic spore. The invention also discloses a preparation method and application of the bacillus subtilis A16. The bacillus subtilis A16 has broad bacteriostasis, can suppress exserohilum turcicum and helminthosporium maydis, has higher antagonism for exserohilum turcicum bacteria, helminthosporium maydis bacteria, maize curvularia leaf spot fungus, verticillium dahliae kleb, wheat scab pathogen, colletotrichum musae and banana vascular wilt bacteria, and has high prevention cure efficiency, and good safety and development application prospect.

The invention discloses a novel bacillus methylotrophicus, which has the preservation register number of CGMCC No.6793, wherein the strain is separated from tobacco rhizosphere soil and is obtained by separating and purifying and screening strains. The invention further provides a fermentation method of the bacillus methylotrophicus, a fermentation product prepared by the method, as well as a biological agent based on the fermentation product and a preparation method thereof; the invention further provides a use of the biological agent in controlling a variety of plant diseases. According to the invention, the biological agent is good in environmental compatibility so that the number of effective living spores is more than 5,000,000,000 / g, has high biological activity, and in particular has good control effect on tobacco bacterial wilt, wherein the control effect on tobacco bacterial wilt, soft rot of cabbage, rice bacterial leaf blight, rice bacterial stripe and cotton angular leaf spot is up to 80% or more.

The invention relates to an antagonistic bacterium for controlling leaf spot of peanut and a microbial preparation thereof, belonging to the field of biological control on crop disease. The invention provides a Bacillus amyloliquefaciens BA-KA1 of which the collection number is CGMCC No.8341 and a microbial inoculant containing the same, and also provides application of the Bacillus amyloliquefaciens or the microbial inoculant in control on leaf spot of peanut. According to the invention, the Bacillus amyloliquefaciens BA-KA1 of which the collection number is CGMCC No.8341 and the microbial inoculant thereof have obvious antagonistic action on leaf spot bacteria of peanut, and can control occurrence of leaf spot of peanut; the control efficiency is above 70%. The use of the strain and the microbial preparation thereof can reduce application of chemical pesticides in peanut production processes, thus having favorable ecological and social benefits.

The invention discloses an organic selenium crop nutrient and a preparation method for the same. The organic selenium crop nutrient comprises the following raw materials in parts by weight: 0.5-1.5 parts of molasses, 5-15 parts of soybean meal amino acid, 6-9 parts of urea, and 0.04-0.1 part of sodium selenite. The preparation method for the organic selenium crop nutrient comprises the following steps of: oscillating all raw materials for 24-72 hours in the conditions of a rotation speed of 120-200 rpm and a temperature of 35-40 DEG C, and sieving to obtain a filtrate, namely, the organic selenium crop nutrient. The content of organic selenium in the organic selenium crop nutrient disclosed by the invention is greater than 0.3 g / L. Additionally, according to the organic selenium crop nutrient and the preparation method disclosed by the invention, harm brought by the too high dosage of an inorganic selenium fertilizer to a human body, and fertilizer damage phenomena of seedling burning, leaf spots and the like due to the inappropriate dosage of the inorganic selenium fertilizer are overcome.

The invention discloses a gliocladium spp. strain for suppressing botrytis cinerea pers and relates to the gliocladium spp. strain. The invention provides a new strain of gliocladium spp., which can be used for suppressing the botrytis cinerea pers and have the effect of suppressing a plurality of other fungal diseases, thereby laying a material foundation for biological control of the botrytis cinerea pers and culture of new species for anti-botrytis cinerea pers by utilizing the biological technology. The gliocladium spp. strain for suppressing the botrytis cinerea pers is gliocladium roseumWY-1 which is collected in China General Microbiological Culture Collection Center with the collection No. of CGMCCNo. 1977. The gliocladium roseum WY-1 can significantly suppress pathogens of the botrytis cinerea pers, fulvia fulva, phytophthora parasitica, verticillium dahliae of tomato, fusarium wilt of tomato, valsa sordida nit, poplar fusarium wilt and blackcurrant leaf spot, and suppress the growth of mycelia of the pathogens.

The invention discloses a streptomyces microflavus. The streptomyces microflavus is the streptomyces microflavus NMG2-4-8, and the preservation number thereof is CGMCG No.3442. The streptomyces microflavus is separated and screened from alfalfa healthy tree rhizosphere soil for the first time in the invention, and experiments prove that the streptomyces microflavus has remarkable antagonistic action for 18 pathogenic fungi and 9 bacteria and broad antibacterial spectrum. The streptomyces microflavus has strong inhabiting action for crop pathogenic bacteria, such as alfalfa downy mildew and the like, shows a good disease prevention effect for the alfalfa downy mildew, powdery mildew, brown spots, stemphylium leaf spot disease, root rot disease and the like, and indicates that the bacterial strain has broad application prospect in the biological prevention and cure fields of alfalfa diseases.

The invention discloses a pseudomonas aeruginosa D10 which is preserved in China Typical Culture Preservation Center, and the preservation number is CCTCC NO: M 209104. A colony on a beef paste peptone culture medium appears brown, round, glossy and wet, and has trim edges; the diameter of the colony is 0.2-0.5 cm; and the thallus is in a short bar shape and does not have gemma. The invention also discloses a preparation method and applications of the pseudomonas aeruginosa D10. The pseudomonas aeruginosa D10 of the invention can inhibit corn northern and southern leaf blight, has strong antergic functions on corn northern leaf blight, corn southern leaf blight, corn curvalaria leaf spot, cotton verticillium wilt, wheat fusarium graminearum, banana colletotrichum toilette and banana fusarium wilt, has the advantages of wide bacteriostatic range, high prevention efficiency and favorable environmental safety, and has favorable prospects for development and applications.

The invention relates to a bactericidal composition containing thifluzamide and triazole compounds. The bactericidal composition comprises an active component A and an active component B, wherein the active component A is selected from thifluzamide, and the active component B is selected from one of metconazole, triticonazole, imibenconazole or fenbuconazole; the weight proportion of the effective active component A to the effective active component B is (1-80 percent): (1-80 percent); and an accessory ingredient and an excipient are added into the effective active components to prepare wettable powder, water dispersible granules, a suspending agent, suspended emulsion or a suspension seed coating agent. The bactericidal composition provided by the invention is used for preventing and curing rice blast, banded sclerotial blight, septoria nodorum, a rust disease, powdery mildew, anthracnose, botrytis, downy mildew, alternaria mali Roberts, a rot disease, a tan disease, cladosporium cucumerinum, leaf spot, an epidemic disease, a black rot disease, a brown spot disease, a scab disease and leaf blight and has the effects of less dosage, rain washing resistance and obvious synergia.

The invention relates to methods and compositions for identifying maize plants that have newly conferred tolerance or enhanced tolerance to, or are susceptible to, Gray Leaf Spot (GLS). The methods use molecular genetic markers to identify, select and / or construct tolerant plants or identify and counter-select susceptible plants. Maize plants that display newly conferred tolerance or enhanced tolerance to GLS that are generated by the methods of the invention are also a feature of the invention.

The invention discloses a bacillus amyloliquefaciens D2WM as well as a preparation method and application of bacillus amyloliquefaciens D2WM. The bacillus amyloliquefaciens D2WM comprises the steps of A, bacillus separation and purification, namely collecting after inoculating a slope; B, preliminary screening of bacillus, namely sequentially selecting strains having antagonistic effects on Erwinia and camellia oleifera diseases by using a point connection method and a plate confrontation method; and C, secondary screening of bacillus, namely culturing the preliminarily-screened strains with the antagonistic effects in an LB liquid culture medium by using a cup-plate method, and screening the strains simultaneously having the antagonistic effects on main diseases of Erwinia and camellia oleifera through an antagonistic bacterium fermentation liquid and sterile filtrate. When being applied to preparation of drugs for treating or preventing soft rot of vegetables and camellia oleifera diseases, the bacillus amyloliquefaciens has a broad-spectrum antagonistic effect, high in growth speed, capable of efficiently antagonizing anthracnose of camellia oleifera, leaf spot diseases of camellia oleifera, black spot of camellia oleifera, canker of camellia oleifera and various diseases and remarkable in antibacterial effect, the culture time for general bacteria and fungi is greatly shortened, and the production cost is reduced.

The invention discloses a pyraclostrobin-containing pesticide composition. The pesticide composition comprises pyraclostrobin and epoxiconazole, and a mass ratio of pyraclostrobin to epoxiconazole is 80:1-1:80. Epoxiconazole can be replaced by anyone of difenoconazole, propiconazole, propineb, metiram, zineb, tebuconazole and hexaconazole. The dosage forms of the pesticide composition comprise a wettable pulvis, a water dispersible granule and a suspension. The pesticide composition is mainly used for controlling diseases comprising downy mildew, the epidemic disease, the rust disease, powdery mildew, Alternaria Leaf Spot, leaf spot, the rice blast and the like of wheat, rice, vegetables, fruit trees and the like.

The invention discloses a method for preparing biopesticide tetramycin from Streptomyces ahygroscopicus subsp.Wuzhouensis n.subsp, and application of a product prepared by the method in preventing and controlling diseases such as apple alternaria leaf spots and the like. The tetramycin prepared by the method improves the biological potency of the tetramycin (the biological potency of fermentation liquor is improved by 15.5 percent after 0.3 to 0.5 percent of normal propyl alcohol is added.), can prolong the quality guarantee period, improves the effect of preventing and controlling apple canker to over 95 percent, has good effect of preventing and controlling the diseases such as the apple alternaria leaf spots, tomato gray mold and the like, has effect of inhibiting yeast, gram-negative and gram positive bacteria, fungi (comprising fungal pathogens) and the like, has wide adaptability, and belongs to the environment-friendly biopesticide.

The invention discloses a wide box and wide belt culture method for sugarcane. Sugarcane planting furrows with the space greater than 2m are dug, the sugarcane is planted in double rows in the sugarcane planting furrows, and soil filling and covering is carried out; a season of soybean, peanut or pepper is interplanted between the sugarcane planting furrows. The sugarcane planting line distance is increased, in addition, a season of short stem crops such as the soybean, the peanut or the pepper is interplanted between the lines, through adopting such a mode, the occupied area of the sugarcane is reduced, the ventilation and light transmission conditions are improved, diseases such as leaf spot diseases and dry top rot diseases generated under the high-temperature high-humidity and concealed conditions cannot easily occur, the generating rate of pests of ceratovacuna lanigera zehntner, mealybug and the like is smaller than that of the conventional single-crop sugarcane, more than 50 percent of pesticide and disease and pest prevention and treatment cost is reduced; in addition, the short stem crops are interplanted, the farm work operation is favorably carried out, and the field management efficiency is improved; and in addition, the short stem crops such as the peanut, the soybean and the like with nitrogen fixation capability are interplanted, partial nitrogen fertilizers can be provided for the sugarcane, and meanwhile, the consumption of chemical fertilizers is reduced.

A soybean cultivar designated BA922834 with high yield potential, tolerance to Roundup™ herbicide, MG VI maturity, resistance to race 3 of soybean cyst nematode (Heterodera glycines), and resistance to frogeye leaf spot, further including the plants and seeds of the cultivar BA922834, methods for producing a soybean plant by crossing the cultivar BA922834 with itself or another soybean plant. The invention also relates to soybean cultivar BA922834 further comprising one or more single gene traits, and to methods of producing a soybean having such traits by introgression, transformation or mutagenesis. The invention also includes using the soybean cultivar BA922834 to produce other soybean cultivars, breeding lines, and progeny.

The invention discloses a pesticide composite containing pyraclostrobin. The pesticide composite contains active ingredients, namely pyraclostrobin and one of triazole compounds: flusilazole, epoxiconazole, tetraconazole, tricyclazole and propiconazole. The ratio of the parts of the two active ingredients by weight is 60 to 1-1 to 60. The pesticide composite at least contains one type of surfactant, thus being beneficial to the dispersion of the active ingredients in water. The pesticide composite integrates protection activity, treatment activity with eradication activity. The pesticide composite can be used for various crop plants such as wheat, paddy rice, vegetables, fruit trees and the like; and the pesticide composite can prevent and treat diseases such as downy mildew, phytophthora disease, rust disease, powdery mildew, alternaria mali roberts, leaf spot, scab disease, rice blast and the like.

The invention discloses a pyraclostrobin-containing agricultural bactericidal compound composition. The composition is compounded by active ingredients, namely pyraclostrobin (A) and a bactericide (B), wherein the bactericide (B) is any one of triflumizole, hymexazol and carbendazim; the weight ratio of the pyraclostrobin (A) to the bactericide (B) is (1:50)-(50:1); and the active ingredients account for 5 to 60 percent of the total weight of the agricultural bactericidal compound composition. The composition can be prepared into the conventional formulations such as water dispersible granules, wettable powder, a suspension, an oil-based suspension, microemulsion, emulsion in water, spreading oil, sustained-release granules and the like. The composition is used for controlling agricultural plant diseases, and is particularly used for controlling diseases such as powdery mildew, anthracnose and leaf spot disease of melons, vegetables and fruit trees, rice seedling blight, pyricularia oryzae, rice sheath blight disease and the like. The invention has the advantages that: the bactericide composition is efficient and has long duration, the environmental pollution is reduced, and the like.

The invention discloses a bactericidal composite containing metconazole and methoxy acrylate compounds, which comprises A and B, wherein A is metconazole, and B is selected from any one of the following bactericides: azoxystrobin, ethofenprox, benzol ethofenprox, pyrazol ethofenprox, and olefinic trifloxystrobin, and weigh part ratio of A to B is 1-80:180. The bactericidal composite can be used for controlling various diseases, has obvious synergy, widens bactericidal spectrum and has higher activity to downy mildew, epidemic disease, anthracnose, powdery mildew, alternaria leaf spot, leaf spot, cladosporium cucumerinum, rice blast and other diseases, can reduce the dosage of pesticides and residual amount of pesticides on crops and lower environment pollution.

The invention relates to a microbial agent for promoting rootage, preventing continuous cropping and performing ecological restoration on soil for planting bananas and a preparation method thereof, and the microbial agent is prepared by inoculating a production strain into a sterile culture medium containing a carbon source, a nitrogen source, an inorganic salt and water, performing aerobic fermentation under the conditions that the temperature is 30-37 DEG C and the pH value is 7.4-7.6, performing primary amplification culture respectively, mixing primary amplification culture solutions with equal mass, further performing secondary and tertiary amplification culture, finally adsorbing fermentation end products and immobilizing on a carrier for preparing the microbial agent, wherein the production strain is selected from bacillus subtilis, bacillus licheniformis, saccharomyces bayanus, paecilomyces lilacinus, streptomyces microflavus and bacillus polymyxa. The microbial agent can be used for effectively preventing dead seedlings, yellow seedlings, wilt, leaf spots, root rot and other soil ecological diseases during the planting process of the bananas, the production cost is low, the fermentation period is short, the flora density is high, and the microbial agent can be used for further promoting the growth of roots, loosening the soil, strengthening the seedlings, removing the pollution caused by residues of pesticides and fertilizers and playing a soil ecological restoration role.

The invention discloses a breeding method of a broad-resistance green soybean variety, and belongs to the technical field of soybean breeding for disease resistance. The breeding method comprises the following steps of hybridizing a high-yield and high-quality soybean variety with soybean varieties for highly resisting frogeye leaf spot, mosaic virus disease, downy mildew and cyst nematode disease; re-hybridizing filial generations two by two; evaluating and screening seed coat colors and disease resistance of multiple generations to breed the broad-resistance green soybean variety which can simultaneously resist four diseases and are excellent in other agricultural and yield characters. The variety has excellent agricultural and yield characters, and can resist the frogeye leaf spot, the mosaic virus disease, the downy mildew and the cyst nematode disease of soybean.

The invention relates to an anti-disease greenhouse vegetable fertilizer which is characterized by comprising bacterial enzyme with effective viable count of (2.0-3.0)*10<9>CFU / 9, shale, straw powder, dry chicken manure, bone meal, fish meal, soybean meal, borax, magnesium sulfate, ferrous sulfate, potassium dihydrogen phosphate and manganese sulfate. The greenhouse vegetable fertilizer consists of bacterial enzyme, organic matters and microelements and can comprehensively meet the growth and development needs of crops and increase the output by over 15%; the fertilization cost is reduced, and the output-input ratio is increased by over 18%; and moreover, the greenhouse vegetable fertilizer enhances the ability of resisting pest and disease damage of crops, and can perfectly prevent gray mold, leaf mold, anthracnose, early blight, late blight, leaf spot disease and the like.

The invention discloses a bactericidal composition containing fluorazolamide and an application thereof in control of multiple fungal diseases of crops. The composition is prepared from one or more of a first active ingredient fluorazolamide, a second active ingredient strobilurin fungicide, namely one of more of pyraclostrobin, azoxystrobin, kresoxim-methyl, trifloxystrobin and picoxystrobin and an assistant, wherein the weight ratio of the first active ingredient to the second active ingredient is (1:40):(40:1), and the sum of the content is 1-90% of total weight of the composition. The composition can be prepared into a suspending agent, a dispersible oil suspension, wettable powder, water dispersible granules, missible oil and a microemulsion allowable in agriculture. The composition is reasonable in components, good in sterilization effect, the activity and the sterilization effect are not simply superposed of the activity of various components, and compared with an existing single preparation, the bactericidal composition has a significant sterilization effect, also has a significant synergistic effect and has good security on crops. The bactericidal composition has significant control effects on gray mold, brown patch, powdery mildew and a leaf spot disease.

The invention discloses a fungicide combination containing polyoxin, which is a fungicide combination containing active component A and active component B, the polyoxin is selected as the active component A, the active component B is selected from any of the following fungicides: ethirimol, 2-cyan-3-amino-3-ethyl aminoacrylate, bromothalonil, zineb, chlorothalonil and dithianon, and moreover, the ratio of the active component A to the active component B in part by weight is 32:1 to 1:64. The fungicide combination can prevent and control a variety of crop diseases, has a remarkable synergistic effect, broadens the antifungal spectrum, and has high activity on downy mildew, epidemic diseases, anthracnose, powdery mildew, leaf spot, fusarium head blight, rice blast and other diseases; and moreover, the dosage of pesticide is reduced, the residue of pesticide on crops is decreased, and thereby the environmental pollution is reduced.

The invention relates to an agricultural sterilizing composition aimed at plant diseases, wherein the constituents include (by weight percent): Zhongshengmycin 1-10%, copper acetate 20-50%, auxiliary agent 1-10%, and filling agent 30-78%. The composition can be used for the control of vegetable diseases including field pumpkin soft rot, water melon bacterial leaf spot, pimiento (pimento) bacterial leaf spot, tomato bacterial leaf blight, pimiento powdery mildew, and pimiento gray mold.

The invention belongs to the field of plant protection, and relates to a kasugamycin-containing sterilization composition and an application thereof. The kasugamycin-containing sterilization composition contains effective amounts of A and B, wherein A is kasugamycin, B is one of oxine-copper, copper(succinate+glutarate+adipate), thiediazole copper, humic acid copper, nitroacid copper, copper naphthenate, amino acid copper, copper acetate and sulfamic acid copper, and the mass fraction ratio of A to B is (10:1)-(1:100). The composition can be processed into wettable powder, water dispersible granules, an aqueous emulsion, a microemulsion and a suspending agent, and the mass sum of A and B accounts for 1-80% of the total mass of the preparation. The composition can be used for preventing and treating fungi and bacterial diseases of multiple plants such as rice, wheat, vegetables and fruit trees and has an excellent effect on late blight and gray mold of tomatoes, rice stripe diseases and rice blast, angular leaf spot of watermelons and citrus bacterial canker diseases.