The Management Method of Pest Control Cultivation
Cultivation and Planting: This plant is mainly grown in the southern regions of China. The smiling flowers can be propagated through cutting, high-pressure method, or grafting. The most common method is cutting, which should be carried out from late July to early September. You can take a shoot with 3 to 8 leaves or a top bud about 15 cm long, making sure to leave some roots at the base of the cutting. When planting on sandy soil, provide partial shade and maintain a moist environment. Rooting usually takes 2 to 3 months, after which the plants can be transplanted to Hunchun.
The high-pressure method is ideal for flowering and is best done between April and May. Choose strong branches that are 2 to 3 years old, wrap them in soil, and they will root within 3 to 4 months. Grafting is less commonly used in the industry but is typically performed between May and June. It is often based on magnolia as a rootstock, allowing the plant to grow quickly once it has taken root. The roots are thick and fleshy, and the plant is not tolerant of transplanting. If you must move it, always carry the soil ball to protect the roots. Pruning and shaping should be done before winter to ensure healthy growth.
Disease Prevention and Control: The plant prefers a warm and humid climate, and it does not tolerate direct sunlight or extreme cold. It should be placed in a shaded, well-ventilated area.
For potted plants, use loose, acidic, and nutrient-rich soil. Water using the "dry and wet" method—only water when the soil is dry, avoiding overwatering that could lead to root rot. In spring, repot the plant and trim any dense branches to improve air circulation and light exposure. After flowering, remove the spent fruits to encourage stronger growth and future blooms.
Common pests include scale insects, which can cause sooty mold. To treat scale, gently brush them off with a small brush or spray a 150-fold dilution of 25% oil emulsion. For sooty mold, rinse the affected areas with water or apply a carbendazim solution diluted 500 to 1000 times. Regular monitoring and timely intervention are essential to keep the plant healthy and thriving.
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