How is the leaf yellowing of farmed Phnom Penh Daphne?

Phnom Penh Daphne belongs to a variety of Daphne odorifera and is a good product of Daphne odora. Phnom Penh Daphne is famous for its "color, fragrance, appearance and rhyme" and is deeply loved by the public. But what about the yellowing of leaves when raising Phnom Penh Daphne?

1. Soil causes

Daphne likes to grow in loose, nutritious soil. If planted in alkaline soil, it will cause its leaves to turn yellow slowly. When this happens, the plants should be moved into the acidic soil in time, or the soil should be irrigated with acid-loving nutrient solution regularly.

II. Reasons for fertilization

Ruixiang likes fertilizer, but it should be used well and fertilized frequently. If you fertilize too much and do not water in time, it is easy to cause fertilizer damage, resulting in Phnom Penh Daphne leaves yellowing.

Third, the cause of low temperature

If the temperature is too low, it will damage the plant and cause the leaves to turn yellow and die. So before the winter Frosts Descent moved into the indoor sunny and ventilated place for maintenance, the temperature should be kept above 5 ℃.

Fourth, the cause of illumination

In summer, plants should be placed in a cool and airy environment, or in an environment without direct sunlight. If the sun shines too hard or there is no sunlight, it will cause the leaves to turn yellow.

Fifth, watering reasons

Phnom Penh Daphne is a water-resistant plant, if the usual watering is not controlled, the leaves will wilt and droop. Therefore, it is necessary to grasp the principle of seeing wet and dry when watering.

Usually, we should pay attention to observe the leaves of Daphne odorifera. If the leaves are straight and straight up, it means that the fertilizer and water are normal; if the leaves are sagging, they are watering too much with fertilizer, and we should find out the reasons and take corresponding measures.

VI. Causes of insect pests

The main pests harmful to Phnom Penh Daphne are aphids and shell insects, which mostly appear in the dry and hot climate and should be controlled as soon as possible. The disease is mainly caused by virus mosaic disease, infected plant leaves appear color spots and deformities, poor flowering and growth stagnation, should be found to root out and burn with fire.

To prevent diseases and insect pests of Daphne odora in Phnom Penh, we should strengthen the management of flower beds and do the following:

1. Strictly control the flow of diseased seedlings and propagate seedlings with diseased branches.

2. Rational fertilization, scientific watering, nitrogen fertilizer should not be applied too heavy, appropriate application of phosphorus and potassium fertilizer to enhance plant disease resistance.

3. To do a good job in the hygiene of the flower bed, the diseased plants, litter and weeds in the flower bed should be removed in time to eliminate the source of pathogens.

In addition, the root of Phnom Penh Daphne is quite special, because it is fleshy aromatic root, sweet, easy to suffer from the harm of some bacteria, especially easy to attract earthworms, affect the normal growth of the root system, pot money must use sterilized soil, with smashed garlic, buried in Phnom Penh Daphne pot soil can also kill earthworms and some bacteria, prevent Phnom Penh Daphne from occurring diseases and insect pests.

Warm Tip: Phnom Penh Daphne has thick branches and strong germination, and Daphne odora is more resistant to pruning. Generally, the dense twigs can be pruned before germination, leaving a certain gap for ventilation and light. Daphne should be pruned after flowering, cut short the flowering branches, and cut off the overgrown branches, overlapping branches, overdense branches, cross branches and other branches that affect the beauty of the tree, so as to maintain a beautiful shape.