Symptoms The typical symptom is a ring-shaped or irregular shape lawn with a diameter of 5 to 50 cm and a red-brown patch of diseased grass. The diseased grass was immersed in water and died quickly. The dead leaves were dispersed between the sub-leaves and the leaves and the spots were spotted. Red cotton-like mycelia (up to 10 mm in diameter) and red filament mycelium were found on the leaves and sheaths of the diseased plants, which became dry and thin. Careful inspection of single plants can be found at different times of the year and at different locations throughout the year. Symptoms tend to be variable, especially when red silk or red cotton flocks are not produced. Diagnosis is difficult. Prevention and Cultivating Technology The slow growth of spring turf is due to the lack of nitrogen fertilizer, not low temperature. Therefore, the best way is to apply nitrogen fertilizer. In autumn, Fusarium plaque disease is also serious in cold grass with severe red line disease. Increasing nitrogen fertilizer can reduce red line disease, but it will also increase Fusarium plaque disease. In addition, smut and xerosis are major problems in this area. The addition of nitrogenous fertilizers in these areas will make the grass more tender, but it is tainted with cyanobacteria and xerosis. At this time, how should the red line disease be prevented? Applying nitrogen fertilizer as planned at the end of summer is the key. The date of the last application of nitrogen fertilizer can be adjusted, so that the grass has enough time to exercise more cold before snow, and then consider the use of fungicides to prevent red line disease. Disease-resistant varieties have no exact data on resistance to red line disease. Because it is a disease that is easily controlled by cultivation techniques and fungicides. It is not practical to select disease-resistant varieties for the control of red line disease alone. In order to prevent turfgrass disease, we must select disease-resistant varieties and choose the ones that are resistant to disease in most areas. Chemical control of lawns with high levels of management requires certain types of compounds to be controlled in autumn or winter. Because the application of nitrogen fertilizer in the later stage of growth can reduce the red line disease, but the severity of the more serious diseases --- Fusarium plaque disease and gray snow mold disease increase. The application of nitrogen fertilizer in the fall will make the lawn grow vigorously before freezing and severe in the winter, resulting in serious losses. In cool weather, a few weeks of late fall rain can limit the growth of the top of the lawn. Under this condition, the use of adequate amounts of nitrogen fertilizer or even excess nitrogen fertilizer will stimulate the growth of the top of the lawn. In order to prevent serious loss of turfgrass, it is necessary to treat it with a bactericide. Fungicides for preventing and treating red line diseases include chlorothalonil, cycloheximide, and cycloheximide plus thiram. Food Display Warmer,Food Warmer Cabinet,Commercial Insulation Sauce Warmer,Thermos Food Warmer Container Guangzhou New Power Catering Equipment Manufacturing Co.,Ltd , https://www.gznewpower.com