47 results about "Cercospora" patented technology

The invention discloses a mixed pesticide for preventing and controlling melasma and cercospora brown spot of peanut. The pesticide is prepared from the following raw materials in parts by weight: 6-18 parts of propineb, 1-3 parts of tebuconazole and 500-12600 parts of water. The dosage of propineb is 30g / mou, and the dosage of tebuconazole is 5g / mou. The propineb and the tebuconazole are matchedin the weight ratio of 6:1 per mou, and then 500-600 times of solution is added. The pesticide is applied twice in the primary disease incident period, and the interval of the pesticide application is 10-14 days. The invention can effectively control the peanut melasma, but also can obviously inhibit the cercospora brown spot of peanut, thereby achieving the purpose of one pesticide with multiplefunctions. The invention reduces the pesticide applying amount, prolongs the effect time, reduces the pesticide applying times, lightens the environment pollution, and is favorable for the ecologicalbalance.

An inoculation method for corn gray spot disease, comprising the following steps: (1) transplanting corn plants at the trumpet-mouth stage; (2) cultivating in a real simulated environment in an artificial climate incubator; (3) collecting pathogenic bacteria; 4) inoculating. The invention is not limited by factors such as season, external environment and region, effectively improves the success rate of artificial inoculation of gray spot disease, can accurately control the inoculation time of gray spot disease, and is beneficial to observe and detect specific time nodes before and after inoculation of plants The appearance and internal indicators change dynamically.

The invention provides an organic compound for preventing and treating waxberry brown patch and a composition thereof. The organic compound can be prepared into the dosage forms, such as soluble liquor, a microemulsion, an emission in water, a suspoemulsion, a seed coating, a wettability powder granule, a slow-release granule, a controlled-release granule, a water dispersible granule, a dry suspension emulsion, or granules which can be directly used and the like. The composition is used for preventing and treating the waxberry brown patch.

The invention belongs to the field of biotechnology, in particular to a biopesticide for controlling cercospora varrireolorWinter, and a preparation method for the biopesticide. Through the compounding of bacillus subtilis HS5B5 which has the antagonism to pathogenic fungi of cercospora varrireolorWinter, biological fertilizer and a Bordeaux mixture, growth and reproduction of cladosporium paeoniae can be effectively inhibited, so that the purpose of cercospora varrireolorWinter control can be realized; meanwhile, the Bordeaux mixture also has the inhibiting effect on other fungus diseases of peony, so that the control effect on the fungus diseases of peony is improved after the Bordeaux mixture is compounded with bacillus subtilis and the biological fertilizer. According to the biopesticide, as the biological fertilizer and the Bordeaux mixture are added into the bacillus subtilis HS5B5, the florescence is prolonged by 2-3 days averagely as compared with that of conventional planting. The biopesticide is adopted to control cercospora varrireolorWinter, and is safe to people and animals, free of environment pollution, efficient and broad in spectrum, and the possibility of drug resistance generation is low.

The invention provides application of a compound cercosporamide in preparation of an immunoenhancer. The compound has immunoenhancement activity and is used for immunocompromised patients suffering cancers, AIDS, immunodeficiency disorder or aging. The cercosporamide has another name of 4-Dibenzofurancarboxamide. The immunoenhancer comprises an active ingredient cercosporamide and auxiliary materials.

The invention relates to a method for simply and quickly separating cercospora monospores. A specially-made spore taking device is adopted, one end of the spore taking device is made into a flat round spore taking ball, and the other end of the spore taking device is made into a spore taking shovel which is slightly sharp at the front end and is in a flat shovel shape. The spore taking device can glue pathogen spores of a small amount, a culture medium is evenly coated with the pathogen spores, it can be guaranteed that one spore arises in a view of 10*10 times, the spore density is low, a target spore is easy to find, blade residual bodies do not adhere easily, the pathogen spores can be separated easily, and the separation rate and separation speed are improved effectively. The chosen spore is a spore which is cultured for 24 h and is germinated, the result that germination cannot occur after single spores are chosen in other methods is effectively avoided, and the success rate is high. The spore is chosen in a mode of spore taking through adhesion, the operation is quick, the success rate is high, the picking efficiency is improved, the operation technique difficulty of the method is not high, the method can be mastered skillfully after several trainings, and the method is easy to handle, simple and easy to learn.