36results about How to "Control bacterial wilt" patented technology

The invention discloses a strain of Paenibacillus macerans, which is named as Paenibacillus macerans ZJU0902 after identification, and is preserved in the Chinese Type Culture Collection Center (CCTCC) located at Wuhan University, Luojia Mountain, Wuhan City. The date is July 19, 2009, and the deposit number is CCTCC NO: M 209158. The invention can inhibit the growth of different biochemical strains of R. solanacearum under in vitro conditions, and can effectively prevent and cure plant bacterial wilt.

The invention provides a Streptomyces flavinus solid fermentation medium, a preparation method and a fermentation method thereof, a fermentation product, a biocontrol product and an application, and relates to the technical field of microbial fermentation. The Streptomyces luteus solid fermentation medium comprises the following components in parts by weight: 40-50 parts of bran, 15-25 parts of rice husk, 25-35 parts of rice bran, 3-7 parts of calcium carbonate and water. The fermentation method of Streptomyces flavinus includes: optionally after seed activation and liquid seed cultivation of Streptomyces luteus strains, fermenting and culturing by using Streptomyces luteus solid fermentation medium to obtain a fermentation product. The present invention alleviates the defects of the existing Streptomyces flavinus with few viable counts and sporulations. The present invention adopts the above-mentioned culture medium for solid fermentation culture, has a short fermentation period and a large number of viable counts, is suitable for industrial production, and obtains a fermentation product It has remarkable effects in preventing and treating bacterial wilt of crops, and improves the quality and yield of crops.

The invention discloses a class of 2-mercapto-5-substituent-1,3,4-thia(oxa)diazole derivatives for preventing and treating bacterial and fungal diseases of crops. Due to their excellent physiological activity, these derivatives are It has received more attention in medical aspects, but its agricultural activity has not been reported yet. This study shows that these compounds can effectively inhibit bacterial disease pathogens such as rice bacterial blight, rice bacterial stripe, tobacco bacterial wilt, tomato bacterial wilt, and wheat head blight, potato late blight, and apple rot. , Pepper Fusarium Wilt, Cucumber Botrytis, Rapeseed Sclerotinia and other fungal disease pathogens. At the same time, 2-mercapto-5-substituent-1,3,4-thia(oxa)diazole derivatives are used to prevent and treat bacterial and fungal diseases of crops, with simple structure, simple preparation process, low production cost and broad application prospects . Has the following general formula.