Common diseases affecting the rich tree include root (or stem) rot and leaf blight, both of which can significantly impact the plant’s health and growth. Root (or stem) rot is a serious condition that often leads to the decline or death of the tree. It is commonly referred to as a rot disease and is caused by various pathogens, including fungi like Botrytis cinerea and Pythium. To manage root rot effectively, several steps should be taken. First, maintain a dry growing environment and ensure proper disinfection of the planting area. After transplanting, it's important to spray the top of the tree with quick-kling to prevent Botrytis damage. Before planting, carefully cut away any damaged or rotten parts at the base of the main root using a sharp knife, then treat the wound with keeling before allowing it to dry. One week after planting, when the soil begins to dry and healing tissue forms, apply products like Plucker, Anke, or Zinc Manganese (Radomir-manganese-zinc) by spraying the tree and directing the liquid down the trunk into the pot for better absorption. Afterward, it’s recommended to apply fungicides weekly, using options such as Anke, carbendazim, Redolmir, or Phytophthora. If Pythium is active, consider using Plex, carbendazim, Redomal, or Phytophthora. The treatment usually lasts about two weeks, but if conditions remain unfavorable, alternating between different chemicals is necessary to avoid resistance. Any infected plants showing signs of ulcers should be removed immediately to prevent further spread. Leaf blight is another common issue. To control this, promptly remove and destroy any infected leaves. Strengthen overall care during cultivation, ensuring timely watering and fertilization. Applying foliar fertilizer 2–3 times per growing season, such as 0.5% potassium dihydrogen phosphate or a 200-times diluted double-effect micro-fertilizer, can help improve plant resilience. Before transporting seedlings from southern regions to the north, it's advisable to spray the leaves with a protective fungicide, such as 70% chlorothalonil diluted 800 times, 18% calcium copper milk powder diluted 200 times, or 50% bacteriostatic solution diluted 600 times. Once transported, the plants should be planted quickly and given proper water and nutrients to avoid dehydration and nutrient deficiency. In southern areas, regular spraying with 50% carbendazim diluted 800 times, 70% chlorothalonil diluted 800 times, or 75% methyl thiophanate diluted 1500 times every 10–15 days is recommended. In addition to these diseases, the sugarcane moth has recently been recorded in China. This pest, particularly its larvae, can damage the rich tree as well as other plants like poinsettia, Fulutong, gooseberry, and Hawaiian coconut. Monitoring for pests and taking preventive measures is essential for maintaining healthy growth. By following these practices, growers can significantly reduce the risk of disease and promote the healthy development of their rich trees. Consistent monitoring, proper sanitation, and timely intervention are key to long-term success in cultivating this species. Middle Pressure Pump,Caustic Soda Chemical Pump,Molten Salt Pump Sichuan Zigong Industrial Pump Co.,Ltd. , https://www.zgpump-global.com