What to Do About Root Rot in Carnations? Cause Analysis and Prevention Methods
1. Being affected by disease
(1) Specific cause: This plant is relatively susceptible to attack by a disease. This disease is called "gray mold." It is a fungal disease. It occurs easily when the temperature is very high and the humidity is also high. When the disease occurs, the plant's roots may be infected by some harmful pathogens. As a result, the roots are very likely to partially rot.
(2) Solutions: After root rot occurs, you can first cut off the rotten roots and dispose of them in a centralized way. Next, we need to spray some chemicals, such as iprodione or metalaxyl. Try to spray the chemicals in time for prevention and control, and the earlier the better. In addition, the management afterward is also very important. For example, avoid watering on cloudy and rainy days. Strengthen ventilation and dehumidification. Also, the type of fertilizer needs attention. Do not apply only fertilizer containing the N element. By contrast, apply more fertilizer containing the two elements P and K.
2. Flower soil problems
(1) Specific cause: The roots grow in the flower soil. Therefore, whether the soil is good or not has a huge impact on the roots. If the soil texture is too clayey and heavy, then drainage will be poor, and aeration will also be poor. As a result, root rot is very likely to occur.
(2) Solutions: First, as in the previous case, we must first deal with the rotten roots. Next, we need to replace its potting soil. Choose flower soil that can retain fertilizer and has good aeration. We can add some granular materials. For example, increase the content of some granular materials such as perlite. Adding them in can greatly improve the permeability of the potting soil. In this way, the root system can breathe smoothly and will not be soaked in water for a long time. Gradually, the phenomenon of root rot may occur less often.