Cultivation and management measures of egg leaf privet in Phnom Penh

Gold leaf privet is called Phnom Penh egg leaf privet, like light, slightly resistant to shade, like warm and moist, suitable for slightly alkaline soil, slightly resistant to cold, strong resistance to air pollution. In urban and rural greening, it is often used for hedgerow. at present, cuttings are commonly used for expanded cultivation.

1. Cuttage preparation and cuttage

In the pruning, select the current year, semi-quality, Phnom Penh obvious robust branches (spring cutting can choose the middle and upper branches of autumn shoots in the first year), cut into cuttings. Ear length 5-10cm, required to have 2 Mel 3 nodes, the upper mouth flat cut, the lower mouth oblique shear, individual larger leaves of each cut and then cut off 1 blade 3 to 1 blade 2, then soak in clean water for 12 to 24 hours, conditional soak with 75ppm2.4-d for half an hour, the effect is better. The cuttings treated above were cut according to the specification of plant spacing 3cm row spacing 8cm. The suitable depth of penetration is from 1 beat 3 to 1 stroke 2 of the cuttings.

2. Plug-in management

The cuttings began to take root 15 to 20 days after cuttage, and the process of root differentiation was basically completed in about 40 days. Special heat preservation and shade should be taken within 40 days after insertion. 0.5% compound solution was sprayed on the leaves every 20 days before transplantation to promote growth. 90 days after insertion, you can choose to change the bed for transplant on cloudy and rainy days. When changing the bed, you must bring soil to transplant, fill the root water in time, and moisturize and shade for about a week according to the weather conditions.

3. Common diseases

Ligustrum lucidum rust: there are round brown spots on the surface of the susceptible leaves and gradually sunken, and the corresponding parts on the back of the leaves are raised. The mesophyll of the diseased part is thickened, yellow or purplish red, and many cup-shaped spores are produced on the raised lesion. The sporidium also occurs on the petiole, and the susceptible petiole is slightly enlarged. When the disease is serious, the leaves are deformed and die. The peak period of disease is from April to June. The fallen leaves should be removed at any time and burned centrally. Spray 1-200 Bordeaux solution at the same time.

4. Common insect pests

Scale insects: in the event of major occurrence, you can choose to control nymphs at the first incubation, and spray 1000 times of fenitrothion on a sunny day.