How to control white sesame bacterial wilt?

How to prevent and cure bacterial wilt of white sesame? Please guide that bacterial wilt of white sesame is very common, which has a serious impact on its yield and quality. its incidence characteristics and control techniques are as follows: first, the disease condition of bacterial wilt of white sesame is mainly caused by excessive soil moisture in the field. the pathogen overwintered in the soil with the remains of the diseased plant and spread by running water or agricultural operations. The condition of continuous cropping field is more serious. The peak of the disease is usually in the hot July to August. After the rainstorm, the temperature rises suddenly, and the disease is easy to occur and epidemic. Second, the harmful symptoms of white sesame bacterial wilt, a bacterial disease, the outer rhizome of the damaged plant showed dark brown stripes, the internal vascular bundles were brown, bacteria overflowed and exuded, and turned into bright black particles after drying. At the initial stage of the disease, the diseased plant seemed to be lack of water, wilted during the day and returned to normal at night. A few days later, the leaves wilted sharply from the top down, the old leaves hung, and then the whole plant died. After the onset of the disease, the veins of the leaves show dark green spots, sometimes crisscross, forming a network, facing the light perspective, and its center is oily. After the capsule was damaged, it showed waterlogged disease spot, and gradually turned into dark brown stripes of different thickness, which made the diseased capsule thin and shrunken, thus making the seed thin and lost its ability to germinate. 3. Control techniques (1) Agricultural control 1. Select disease-resistant varieties and rotate them with non-Solanaceae and non-legume crops for three years. 2. White sesame is not resistant to water stains. During its growth and development, if it encounters heavy rain, rainstorm and stagnant water in the field, it should be eliminated in time so that there is no stagnant water in the field. 3. Increase the application of organic fertilizer, especially potash fertilizer. 4. Remove, destroy or bury the diseased plants in time. (2) Chemical control 1. Disinfect the acupoint with 1 part of lime water and 15 parts of lime powder. 2. Before sowing, soil treatment with chlorothalonil has a better preventive effect, or at the initial stage of the disease, spray with 50% carbendazim wettable powder 800-1000 times or 50% cresol guaiacol 50 ml plus 50% carbendazim 100 grams per mu, spray 50 kg of water. Click to get more sesame planting techniques click to get more food crop planting techniques