Phnom Penh egg privet How to cultivate and manage?
The gold leaf privet scientific name is Phnom Penh egg privet, hi light, slightly shade-tolerant, hi warm and moist, suitable for slightly alkaline soil, slightly cold, strong resistance to atmospheric pollution. In urban and rural afforestation, it is often used in hedgerows, and currently cuttings are commonly used for expanding cultivation. 1. Cutting preparation and cutting In the pruning period, select the mature branches with obvious, semi-prime, and Phnom Penh in the current year (choose the first middle and upper branches of the first year of autumn shoots in spring), and cut them into panicles. Spike length 5-10cm, requires 2-3 sections, upper mouth flat shear, lower mouth oblique shear, each individual blade larger each cut 1/3 to 1/2, and then soaked with clean water 12 to 24 Hours, conditional use of 75ppm2.4-d soak for half an hour is better. After the above-mentioned treatments, the panicles were cut in a row spacing of 3 cm in a row spacing of 8 cm. The depth of soil insertion is preferably 1/3 to 1/2 of the cutting. 2. After the insertion, the cuttings begin to take root 15 to 20 days after insertion, and the root differentiation process is basically completed in about 40 days. In particular, heat preservation and shade reduction are required within 40 days after insertion. Foliar 0.5% compound solution was applied every 20 days prior to transplantation to promote growth. After inserting for 90 days, it is possible to select a rainy day for transplanting. When the bed is changed, it must be transplanted with soil, and the roots should be filled with water in a timely manner. Humidity and shading should be carried out for about a week depending on the weather conditions. 3, common diseases Privet rust: the diseased leaves produce round brown spots on the surface, and gradually sag, the corresponding part of the back of the leaves uplift. The diseased part of the mesophyll thickens, yellow or purple, and later in the uplift of the lesion produced a lot of cup-shaped rust spore device. Rust spores also occur on the petiole and the petioles are slightly enlarged. When the disease is severe, the leaves are deformed and die. From April to June, the disease was at its peak. The leaves should be removed at any time and burned together. At the same time spray 1:200 Bordeaux mixture. 4. Common insect pest mites: When the disease occurs, the nymphs can be selected for the prevention and control of the newly hatched larvae, and 50% of clams are used to spray 1000 times of sunny days.