The pathogen of the disease can enter the plant and cause the disease mainly through the wound on the stem and leaf of the plant, the water vent on the edge of the early morning leaf of the plant can not be closed in time and so on. The symptoms can be divided into two types: one appears on the flowers and leaves, and water spots appear on the back of the flowers and leaves, and gradually expand to brown spots in the later stage, accompanied by yellow halos; the other is on the stems, yellow spots appear on the stems, then infect the leaves, the leaves are pale and yellow, and white liquid will flow out of the stems.
Bacterial wilt mainly depends on prevention.
Environmental prevention: strengthen the control of temperature. The ideal reproduction temperature of bacteria is 30 ℃, and the temperature is below this range. Ensure the sanitation of the surrounding environment of the plant, and frequently clean up the dead branches and leaves.
Fertilizer prevention: try to use less ammonia nitrogen fertilizer during plant growth. In the process of growing, it is necessary to clean up the diseased plants in time and spray them only for disinfection.
Drug prevention: regular spraying. Anthurium andraeanum is sensitive to copper preparations. It is usually used with oxytetracycline, neophytomycin, kukukuiling, etc., and diluted with water before use.
The plant infected with the pathogen formed round brown spots along the veins of the leaves, which gradually linked to form large brown spots, and finally dried up.
Strengthen management, ventilate regularly, and clean up the diseased leaves and plants in time.
In the early stage of the disease, the commonly used drugs are chlorothalonil, captan and mancozeb. After diluted with water, the plants are sprayed. Once in 7-10 days, 2-3 times will be effective.
The main reason for this is the excessive root pressure, or the heredity of the plant itself. It can be corrected by later curing. At ordinary times, pay attention to water control, select the soil with good air permeability, loosen the soil in time, and cultivate it for a period of time to improve.
The spatula is the most colorful part of red palm, but if it is not properly maintained, it will curl up and affect its beauty. During maintenance, pay attention to increase indoor temperature, water properly, and often spray water on plant leaves to ensure sufficient air humidity.
