1783 results about "Downy mildew" patented technology

The invention relates to a strain of lys-starch bacillus as well its application. The bacterium is separated from the soil on eggplant fields, anning district, Lanzhou, Gansu. The bacterium is identified to be Bacillus amyloliquefaciens. It's preserved in the Chinese typical culture preserving center (CCTCC) with a preserving name of Bacillus amyloliquefaciens I7 and preserving code of M206027. The broth of M206027 and M206027strain, non-cell culture fluid of M206027 strain's broth, and the monomer extracted from the M206027strain, M206027 broth or its non-cell culture fluid can be used in the biological control of peach anthracnose bacterium, pear nigrities artis bacterium, apple brown rot bacterium, Fusarium acuminatum, Fusarium oxysporum, Fusarium semitectum, chilli black rot bacterium, cucumber blight bacterium, tomato early blight bacterium, eggplant early blight bacterium, dry thread Pyrenomycetes, wheat foot rot bacterium, potato thread Pyrenomycetes, potato early blight bacterium, potato late blight bacterium and watermelon downy mildew bacterium. It's easy to get the material of the invention and easy to operate; besides, it can be widely used in full scale production.

The invention discloses a trichoderma viride fungi strain and a method for preparing a bio-control fungicide thereof and application. The strain is named as trichoderma viride strain ZBS6 and collected in the CGMCC, and the collection number is CGMCC No.3538. The microbial fungicide is liquid or solid fungicide, and is prepared from the trichoderma viride ZBS6 strain. The ZBS6 strain and the fungicide thereof have wide bacteriostatic spectrum and good bacteriostatic effect, and have strong inhibiting effect on botrytis cirerea, rhizoctonia solani, rhizocto-nia cerealis, gaeumannomyces grami, marssonina coronaria, fusarium oxysporum and the like; and the fungicide can be used for control of botrytis cirerea, cucumber downy mildew, rhizocto-nia cerealis, wheat soil-borne disease and wheat powdery mildew, is efficient, non-toxic and simple to use, and does not cause environmental pollution.

The invention relates to broad-spectrum compound microbial bacteria for preventing and treating vegetable fungal diseases, and belongs to the technical field of agricultural biological prevention and treatment. The broad-spectrum compound microbial bacteria is compounded from four microorganisms, namely bacillus subtilis BSD-2 ((i) Bacillus subtilis), brevibacillus brevis ch2 ((i) Brevibacillus brevis), bacillus amyloliquefaciens Y10 ((i) bacillus amyloliquefaciens) and paenibacillus polymyxa Y89 ((i) Paenibacillus polymyxa) according to a certain ratio. By adopting the compound bacteria, the vegetable fungal diseases of a greenhouse or a large field, for example, botrytis, leaf mold, downy mildew, powdery mildew, blight and the like can be effectively prevented and treated, the field efficacy can be up to over 70%, the yield is increased by 5-20%, and the broad-spectrum compound microbial bacteria are significant in economic, social and ecological benefits, and have broad popularization and application prospects.

The present invention discloses an allicin-containing prevention and treatment pesticide for crop plant diseases. The pesticide can be prepared into powder, an emulsion, a microemulsion, an aqueous emulsion or a suspension by adopting allicin and a bactericidal agent as effective active ingredients, wherein a weight percentage of the allicin is 10-70% and a weight percentage of the bactericidal agent is 1-40%. The pesticide of the present invention has the following advantages that: the pesticide is prepared by compound combination of the allicin and the bactericidal agent, such that a significant synergy effect can be generated, bacterial killing and disease prevention capacity can be enhanced, bacterial killing spectrum can be enlarged, crop yields can be improved, and especially good prevention and treatment effects for gray mold, downy mildew, leaf mold, epidemic disease, and other diseases can be provided; the pesticide of the present invention provides strong affinity for crops, can be rapidly absorbed by crops, and has characteristics of pathogenic bacteria killing, plant disease inhibiting, and no residue, in addition, drug resistance is not easily generated; the use amount of the single component in the pesticide of the present invention is reduced, such that the safety on crops is improved, and the use cost is relatively low; and allicin is adopted for plant protection so as to increase selectivity of pesticide use and prompt development of plant protection technology.

A chlorothalonil slurry product having greater than 90% by weight of the chlorothalonil present in discrete particles having a diameter less than 1 micron, more preferably less than 0.3 microns, is useful at reduced application rates, compared to prior art chlorothalonil formulations, to control a variety of diseases such as sapstain on wood, neck rot on onions, late blight on potatos, and downey mildew on fruits and vegetables.

The invention discloses a substituted pyrazol compound containing pyrimidine. The structure of the compound is shown as general formula I in the specification, wherein each substituent group is defined as the specification. The compound provided by the invention has broad-spectrum bactericidal, insecticidal and acaricidal activity, and has excellent control effect on cucumber downy mildew, wheat powdery mildew, corn rust, rice blast, cucumber anthracnose and the like. The compound provided by the invention also shows good insecticidal activity.

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 provides an agent which is prepared by compounding phytochemicals namely eugenol and allicin in the weight ratio of (1:30)-(30:1). The compounded agent can be prepared into soluble liquid, emulsion in water, an emulsifiable solution, suspension, a suspend emulsion formulation and other formulations and is used for controlling diseases such as powdery mildew, botrytis, downy mildew,viral disease, leaf mold, anthracnose, rust disease, fusarium wilt or epidemic disease and the like of plants. The eugenol and allicin compounded agent has an obvious synergistic effect, and is high in bacteriostasis activity, and low in relative using amount; and the compounded agent can be expected to be developed into an environment-friendly, high-efficiency, and low-toxicity agricultural bacteriacide which has high quality.

The invention discloses substituted diphenylamine compounds, which is shown as the general formula I. In the formula, each substituent is defined as the description. The compounds shown as the general formula have high activity for various germs in the field of agriculture, and particularly has good control effect on cucumber downy mildew under the condition of small dosage; and the compounds also have higher pesticidal and acaricidal activity. Meanwhile, raw materials for synthesizing the compounds are readily available, the synthesis method is simple and convenient, and the compounds have low cost compared with known bactericides, and have wide application prospect.

The invention discloses a eugenol biological pesticide which comprises the following ingredients in percentage by weight: 0.1% to 70% of eugenol, 6% to 20% of surfactant, 0.01% to 0.5% of plant immunity regulator, 10% to 50% of synergist, and raw materials of alcohol and turpentine for the rest part. With the advantage of reasonable formula, the eugenol biological pesticide is characterized in that the active volatility of the active ingredient eugenol is improved, the pesticide effect of the eugenol is enhanced, pesticide doses are reduced, and the pesticide cost for farmers is reduced; pureplant solvents are used in the eugenol biological pesticide which belongs to low-carbon and environment-friendly pesticide, so pollution and harm to the environment are reduced, and the eugenol biological pesticide is safe and environment friendly for use. The eugenol biological pesticide is used for preventing and treating powdery mildew, botrytis and downy mildew and regulating plant immunity, and has the effects of synergy, simultaneous treatment, resistance prevention, resistance delay, etc.

The invention relates to a pesticide, in particular to a complex bactericide for mainly treating grey mould disease, early blight and powdery mildew, which is used for preventing and controlling the grey mould disease, early blight, powdery mildew, downy mildew and late blight of vegetable and fruit crops. The complex bactericide consists of active ingredients, a filler and/or an auxiliary agent, wherein the active ingredients consist of boscalid and methoxyl acrylate bactericide in the weight ratio of 1-100:1-100. The complex bactericide can also be prepared into wettable powder or water dispersible granules for use. The complex bactericide has the advantages of high quick acting performance, novel action mechanism and capability of effectively suppressing and delaying the occurrence and development of germ resistance to the medicament; and a preparation process has the advantages of simplicity, low cost, wide disease prevention spectrum and high biological safety.

The invention discloses bacillus subtilis, a biological prevention and control preparation thereof and an application of the biological prevention and control preparation, and belongs to the field of biological plant disease and pest prevention and control. The stain is bacillus subtilis XLBS-01, and has the preservation number of CGMCC No. 6692. Tests show that the bacillus subtilis disclosed by the invention has the characteristics of high growing speed, large sporulation quantity, wide action spectrum, strong stress resistance, capability of realizing rapid and large-quantity colonization at plant roots, and the like, and therefore, the bacillus subtilis has good application prospects. The biological prevention and control preparation prepared from the bacillus subtilis can not only effectively prevent and control plant soil-borne diseases, but also can effectively increase the crop output, thereby being a biological prevention and control preparation with vast application prospects. The microbial preparation can be used as a biopesticide or a biofertilizer for preventing and controlling various soil-borne plant diseases and also preventing and controlling plant leaf diseases, such as hot pepper anthracnose, cucumber target spot, grape downy mildew, rose powdery mildew and the like.

The invention belongs to the technical field of agricultural fungicides, and specifically relates to a cymoxanil-containing fungicide composition and application of the fungicide composition. The cymoxanil-containing fungicide composition is compounded by famoxadone and cymoxanil and is used for preventing and treating plant diseases caused by pathogenic fungus, especially for preventing and treating tobacco black shank, and downy mildew, epidemic disease and peronophythora litchi of crops, such as fruits and vegetables.

The invention discloses streptomyces albidoflavus strain and an application thereof to control cucumber downy mildew, and belongs to the field of biological control on plant diseases. The bacterial strain is streptomyces albidoflavus ACT033, and the preservation number is CGMCC No. 8125. The invention also discloses a biological control preparation which is prepared by employing the new streptomyces albidoflavus strain ACT033 and is capable of effectively controlling cucumber downy mildew and a preparation method of the preparation. Experiments show that the streptomyces albidoflavus strain ACT033 of the invention has the characteristics of fast growth speed, large sporulation quantity, broad-spectrum effect, strong stress resistance and the like, and can be fast colonized in quantity at the plant roots, so good application prospect is achieved. The biological control preparation prepared from the streptomyces albidoflavus strain ACT033 not only can control cucumber downy mildew, but also can effectively increase crop output.

The invention belongs to an antibacterial, in particular to a plant-based antibacterial and a production method thereof. The antibacterial is prepared by physically crushing and mixing 20 to 63 weight percent of rheum officinale, 5 to 10 weight percent of turpentine, 5 to 10 weight percent of aloe, 17 to 40 weight percent of golden cypress bark, 5 to 10 weight percent of saponin and 5 to 10 weight percent of root of melia azedarach linn; immersing the mixture in ethanol; and concentrating. When used, the plant-based antibacterial is very stable and forms bacteriostatic thin films on thesurface of plants after being sprayed and contacted with the target plants so as to effectively kill germs and control the spread of the disease. In the invention, the raw materials are rich, the production method is simple, the plant-based antibacterial is cheap, convenient, environmentally-friendly, free from arousing medicine resistance and safe to human beings and livestocks, can be used for preventing and controlling various diseases such as powdery mildew, downy mildew and anthracnose in crops such as vegetables, fruits, flowers and plants.

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 relates to a traditional Chinese medicine agricultural fungicide for preventing and treating diseases of vegetables and fruits. The traditional Chinese medicine agricultural fungicide has the characteristics of high efficiency, low toxicity, no public nuisance, no pollution, no toxic or side action, wide antibacterial spectrum and long drug effect to vegetable grey mold, sclerotinia sclerotiorum, downy mildew, colletotrichum lagenarium, fruit ring spot, valsa mali and the like. The traditional Chinese medicine agricultural fungicide has dual functions of preventing and treating various diseases caused by fungi, virus and bacteria and can be widely used for preventing and treating the diseases of vegetables and fruits.