111 results about "Brown blotch disease" patented technology

The invention relates to a trichoderma atroviride preparation for preventing and controlling vegetable fungal diseases and a preparation method thereofof the trichoderma atroviride preparation. A trichoderma strain Tr1208 is trichoderma atroviride and preserved in the CGMCC (China General Microbiological Culture Collection Center), and the preservation number is CGMCC No. 6828. According to The the trichoderma atroviride preparation takes, the trichoderma atroviride Tr1208 is used as an effective active ingredient and is prepared by being matched with an agriculturally acceptable carrier and a protective agent for the preparation; the bacteria content of the effective active ingredient is (1.0-30.0)*108 spores / gram; and the bacteria protectant content is 0.05%-1.8%. The preparation can have the effects of effectively preventing and controlling leek Botrytis, cucumber brown patches, cucumber powdery mildew, cucumber downy mildew, tomato early blight, cucumber type damping off, cucumber type blight and cucumber type root rot and promoting plant growth and characteristics of efficiency, wide antimicrobial spectrum, simple usage, low cost, no environmental pollution and plant micro ecological environment improvement.

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.

Disclosed in the present invention is a fungicidal composition containing prothioconazole and a prochloraz manganese salt and use thereof. The fungicidal composition uses prothioconazole and a prochloraz manganese salt as the main active ingredients. The fungicidal composition may be applied to control cereal, fruit, and vegetable diseases, and has high synergistic effects, overcomes and delays the resistance of pathogenic fungi, and has a fast fungicidal speed and long duration. The application cost is reduced, and the control effect is significantly better than that of a single agent. The present invention may be used to control fungal diseases on crops, and in particular, can be used to control powdery mildew, sheath blight, fusarium wilt, leaf spot, rust disease, stalk break, net blotch, scald disease, gray mold, black spot, brown blotch, black shank, cucumber, citrus and pimento anthracnose, citrus stem-end rot, green mold, penicilliosis and mushroom brown rot, and the effects are better than that of a single agent.

The invention discloses a sterilization composition containing prothioconazole and difenoconazole and an application thereof. The sterilization composition takes prothioconazole and difenoconazole as main effective ingredients. The sterilization composition can be applied to prevention and treatment of diseases of grains, fruit trees and vegetables, has a relatively high synergetic effect, can be used for overcoming and retarding drug resistance of bacteria with high sterilization speed and long duration, and reducing application cost, and has a prevention and treatment effect remarkably superior to that of a single preparation. The sterilization composition can be used for preventing and treating fungous diseases of crops, especially powdery mildew, banded sclerotial blight, fusarium wilt, leaf spot, rust disease, sclerotinia sclerotiorum, net blotch, scald, botrytis, black spot, brown blotch, black shank, scab, sphaceloma ampelinum, white rot, alternaria leaf spot, brown patch and gibberellic disease, and has an effect better than that of a single preparation.

The invention relates to a trichoderma atroviride preparation for preventing and controlling vegetable fungal diseases and a preparation method thereofof the trichoderma atroviride preparation. A trichoderma strain Tr1208 is trichoderma atroviride and preserved in the CGMCC (China General Microbiological Culture Collection Center), and the preservation number is CGMCC No. 6828. According to The the trichoderma atroviride preparation takes, the trichoderma atroviride Tr1208 is used as an effective active ingredient and is prepared by being matched with an agriculturally acceptable carrier and a protective agent for the preparation; the bacteria content of the effective active ingredient is (1.0-30.0)*108 spores / gram; and the bacteria protectant content is 0.05%-1.8%. The preparation can have the effects of effectively preventing and controlling leek Botrytis, cucumber brown patches, cucumber powdery mildew, cucumber downy mildew, tomato early blight, cucumber type damping off, cucumber type blight and cucumber type root rot and promoting plant growth and characteristics of efficiency, wide antimicrobial spectrum, simple usage, low cost, no environmental pollution and plant micro ecological environment improvement.

The invention discloses an application of a Trichoderma asperellum microbial agent in prevention and treatment of crop diseases, the classification name of the strain is Trichoderma asperellum, the strain is preserved in the China Center for Type Culture Collection, the preservation number is CCTCC NO: M 20211179, and the preservation date is September 15, 2021. The trichoderma asperellum can inhibit the growth of a plurality of pathogenic fungi, and can effectively prevent and treat crop diseases caused by fusarium oxysporum, gaeumannomyces graminis, cucumber brown spot, watermelon fusarium oxysporum, pumpkin leaf spot, phytophthora capsici, cucumber fusarium oxysporum and the like. The microbial agent has no toxic and harmful effects on the environment and plants, has a certain growth promoting effect on crop growth, and can be applied to preparation of antagonistic bacteria for preventing crop pathogenic bacteria.

The present invention relates to a Bacillus amyloliquefaciense (Bacillus amyloliquefaciense) BA-KA3 and its application. The Bacillus amyloliquefaciense was preserved in the General Microorganism Center of China Microbiological Culture Collection Management Committee on October 23, 2013, and the preservation number is : CGMCC No.8342; It has obvious antagonistic effect on Botrytis cinerea, wheat scab, wheat sheath blight, tobacco red spot, capsicum phytophthora, capsicum anthracnose, peanut brown spot, pear black Various pathogenic fungi such as spot bacterium and garlic sclerotinia have obvious inhibitory effect; and can significantly improve plant growth indicators such as seed germination rate, germination rate and root length; especially suitable for making agricultural preparations for preventing and treating tomato due to The disease caused by Botrytis cinerea infection and has a certain growth-promoting effect.

The invention relates to a phomopsis asparagi molecular detection primer and a fast detection method and belongs to the technical field of crop disease and damage detection and biology. The specificity primer comprises an upstream primer SF:5'-CCTTACTGTTGCCTCGGCG-3' and a downstream primer SR:5'-CCGGAGCGAGGGTTTAACTA-3'. The primer is adopted to be subjected to PCR amplification (annealing temperature is 56 DEG C) and agarose gel electrophoresis so that specificity amplification products with the fragment length being 401 bp can be specifically amplified in phomopsis asparagi pure DNA, asparagus plants with bacteria and cultivation soil. The detection primer is high in specificity and sensitivity, the detection method is very practical, and operation is easy and fast. Early-stage detection of the phomopsis asparagi disease can be achieved, similar speckle disease and wilt on asparagus can be effectively distinguished, and the primer has great significance in early warning and prevention and control over asparagus stem wilt and prevention and control over diffusing and spreading of diseases.

The invention discloses a sterilization composition containing prothioconazole and metalaxyl-M and an application thereof. The sterilization composition takes prothioconazole and metalaxyl-M as main effective ingredients. The sterilization composition can be applied to prevention and treatment of diseases of grains, fruit trees and vegetables, has a relatively high synergetic effect, can be used for overcoming and retarding drug resistance of bacteria with high sterilization speed and long duration, and reducing application cost, and has a prevention and treatment effect remarkably superior to that of a single preparation. The sterilization composition can be used for preventing and treating fungous diseases of crops, especially powdery mildew, banded sclerotial blight, fusarium wilt, leaf spot, rust disease, sclerotinia sclerotiorum, net blotch, scald, botrytis, black spot, brown blotch, black shank, downy mildew, epidemic disease, late blight and pythium disease, and has an effect better than that of a single preparation.

The invention relates to the technical field of edible mushroom bacterial disease prevention and treatment, and particularly discloses a composition for preventing and treating edible mushroom bacterial diseases and a preparation and a preparation method thereof. The composition is prepared from the following components in percentage by mass: 16 percent to 22 percent of sodium chlorite, 22 percent to 30 percent of sodium persulfate, 5.5 percent to 6.5 percent of sulfamic acid, 1.4 percent to 1.6 percent of glucose, 14 percent to 16 percent of calcium chloride, 3 percent to 6 percent of sodium alginate, 21 percent to 26 percent of chitosan oligosaccharide zinc complex, 0.7 percent to 0.9 percent of lignosulfonic acid quaternary ammonium salt, 1.1 percent to 1.3 percent of magnesium sulfate, 1 percent to 5 percent of Tween-20 and 1 percent to 5 percent of hexadecanol. The composition for preventing and treating the edible mushroom bacterial diseases has a remarkable effect on preventing and treating bacterial diseases such as brown spot and the like, is environment-friendly, has a good bactericidal effect, is low in pesticide cost, and reduces environmental pollution and pesticide residues.