6 results about "Curvularia" patented technology

This invention discloses a pesticide composition containing silicon-rich rings and its application in controlling banana leaf spot disease, belonging to the field of biocide pesticide technology. The invention extracts pomegranate seeds. In indoor experiments, the colony diameter of *Curvularia natans* leaf spot pathogen was reduced, indicating that the pomegranate seed extract can inhibit the growth of *Curvularia natans*. Using this extract and silicon-rich rings as synergistic components, it is combined with propiconazole to prepare a pesticide composition containing silicon-rich rings. In field trials, the disease index of the plants decreased, indicating that *Curvularia natans* leaf spot pathogen was inhibited; the complex group showed the highest relative control efficacy, reaching 78.13%. The pesticide composition containing silicon-rich rings prepared by this invention can better inhibit *Curvularia natans* leaf spot pathogen and is suitable for pesticide development for controlling banana leaf spot disease.

The invention relates to the technical field of plant disease prevention and treatment, in particular to application of a Welan gum aqueous solution to prevention and treatment of plant diseases, and the concentration of the Welan gum aqueous solution is 50 micrograms per milliliter to 100 micrograms per milliliter. The molecular weight of the welan gum is 800 Da to 900 Da. Experiments prove that the Welan gum aqueous solution can inhibit spore germination and mycelial growth of the original fungus curvularia lunata of the corn curvularia leaf spot, the physiological function of leaves is not affected after spraying, in addition, the Welan gum aqueous solution also has an inhibiting effect on diseases such as northern corn leaf blight and wheat scab, and is expected to be used as a green and safe pesticide, and the Welan gum aqueous solution has broad application prospects. The compound is applied to comprehensive prevention and control of diseases of corn and other crops, and can also be used as a dispersing agent and a slow-release agent to be mixed with other bacteriostatic agents to improve the prevention and control effect.

This invention belongs to the field of pesticide technology, specifically relating to a pesticide composition containing benzimidazole. The pesticide composition's active ingredient is a compound of benzimidazole and fluazinam or emodin methyl ether. This invention, through indoor bioactivity tests, found that the compound of benzimidazole with fluazinam or emodin methyl ether, within a certain mass ratio range, has a synergistic effect against various plant fungal diseases such as Rhizoctonia solani, Curvularia crescentis, and Sclerotium sclerotiorum, helping to improve control efficacy. This is of great significance for the research and development of pesticides for controlling diseases such as cucumber damping-off, corn curvularia leaf spot, and peanut white mold.

The invention relates to a carbazate compound as well as a preparation method and application thereof. The carbazate compound is a compound shown in a formula (I), or an isotope labeled compound thereof, or an optical isomer, a geometric isomer, a tautomer or an isomer mixture thereof, or a pharmaceutically acceptable salt thereof. The carbazate compound provided by the invention shows broad-spectrum antibacterial activity on plant pathogenic bacteria such as pathogenic fungi; the invention relates to the field of pesticide preparations, in particular to a pesticide preparation for tobacco alternaria alternata pathogenic bacteria, cabbage black spot pathogenic bacteria, tomato early blight pathogenic bacteria, apple anthracnose pathogenic bacteria, corn curvularia pathogenic bacteria, wheat scab pathogenic bacteria, watermelon fusarium wilt pathogenic bacteria, potato dry rot pathogenic bacteria, rice blast pathogenic bacteria, pumpkin fusarium wilt pathogenic bacteria, cotton fusarium wilt pathogenic bacteria, apple ring rot pathogenic bacteria and apple rot pathogenic bacteria. The compound shows excellent bacteriostatic activity on plasmopara viticola, powdery mildew of muskmelon and the like. (I)

The invention discloses multifunctional cold-resistant bacillus subtilis and application thereof, and belongs to the technical field of microorganisms. According to the invention, a strain of the Peribacillusfrigitorirans YM763 is obtained through separation and screening, and the strain can be used for preventing and treating corn diseases caused by Curcularia lunata, Exserohilum tubers and Bipolar maydis at the same time and degrading a chemical insecticide chlorantraniliprole, and has no cross resistance with existing bactericides and insecticides. The invention further provides a preparation method of the strain of the Peribacillusfrigitorirans YM763, and the strain of the invention has the advantages that the strain of the Peribacillusfrigitorirans YM763 can be used for preventing and treating corn diseases caused by Curcularia lunata, Exserohilum tubers and Bipolar maydis and degrading the chemical insecticide chlorantraniliprole; compared with the existing chemical synthesis pesticide for prevention and treatment, the method has the advantages of high efficiency, low toxicity, no environmental pollution and low possibility of generating drug resistance because of being from the natural environment.

The invention belongs to the technical field of pesticides, and particularly relates to a composition containing a plant immune resistance inducer and a chemical bactericide and application of the composition to promotion of disease resistance and yield increase of corn. The disease index of corn southern leaf blight and corn curvularia leaf spot disease treated by the composition is low and is superior to or close to the prevention effect of a conventional chemical agent treatment group (100% color development), and the yield of corn treated by the composition per mu is increased by 9.7% or above and is close to the yield increase value of the conventional chemical agent treatment group (100% color development).