Main symptoms after the disease: leaf spot or dead leaf. In case of leaf blight, corresponding measures shall be taken in time, and medicament can be selected for treatment. Xuezebutozin wettable powder, or sukujing wettable powder, chlorothalonil and other chemicals for spraying, to eliminate patients.
The main symptoms after the disease: duyinghua plants suddenly lodging, plants appear dark brown. Most of the cataplexy is caused by the invasion of bacteria. The pathogen invades the roots of seedlings through the soil, causing the seedlings to fall like the ground. That is to say, the phenomenon of sudden change. In addition, the disease performance of lignified plants is different from that of seedlings, most of which are wilted. If the growing environment is humid, the position of the plants that produce the disease will produce pink bacterial colonies.
In view of the disease of seedlings, it is suggested to use drug treatment, spray metformin wettable powder, dixone and other agents for sterilization. Because the disease is infectious, in order to reduce the loss and control the disease better, we should deal with the disease in time to prevent the infection of healthy plants. All the diseases should be prevented from the beginning. Therefore, it is suggested to disinfect the soil and kill the germs in the initial planting period. Seedling Damping off is caused by Rhizoctonia solani in soil. Most of the pathogens invade the root and stem base of the seedlings from the surface soil, and the diseased parts of the plants fall down and constrict after being injured, which is dark brown. The diseased seedlings often fall from the soil surface, causing the phenomenon of sudden fall (so-called sudden fall disease); if the seedling tissue has been lignified, the diseased seedlings often do not fall down and show the symptom of standing dry. When the soil is wet, the disease often produces pink mould layer.
