Cultivation methods and precautions for pine trees

1. Maintenance methods

1. Substrate selection: It has no strict requirements on soil, has strong adaptability, and can tolerate barrenness. It is best to choose loose, fertile, well-drained, slightly acidic sandy loam.

2. Light management: Most of them like light and have weak shade tolerance. If they are kept in a dark environment for a long time, it will easily lead to a sparse crown. Therefore, when cultivating them, they should be given sufficient sunlight as much as possible to facilitate their healthy growth.

3. Water management: Its leaves are narrow and the cuticle is well developed, with a xerophytic structure, so it is drought-resistant and can endure water shortage without being harmed. It can grow in arid environments with shallow soil and many rocks. Excessive water content in the soil is not conducive to its growth. Attention should be paid to drainage to avoid waterlogging.

4. Temperature management: It is a famous pioneer tree species with strong adaptability to environmental temperature. It is cold-resistant and heat-resistant, and can thrive in both high and low temperature environments.

2. Breeding techniques

1. Reproduction method: It can be propagated by sowing or cutting. Among them, the sowing method is to store the seeds in the sand in winter to germinate, cover the sand pile with straw mats, pay attention to keeping warm and preventing frost, and keep the environment ventilated. When about half of the seeds have cracks in the next year, they can be sown.

2. Transplantation method: The transplantation method varies depending on the type of seedlings. Container seedlings have a higher survival rate because they are covered with soil, which can protect the roots of the plants from being damaged during the transplantation process. The roots of bare-root seedlings are relatively easily damaged, so you need to pay attention to protecting the roots during transplantation.

3. Problem diagnosis and treatment

1. Yellowing leaves: If the needles turn yellow due to water loss, be sure to check whether there are signs of longhorn beetle parasitism. Once discovered, the diseased trees must be manually cut down and removed in time to prevent the longhorn beetles from spreading and harming the trees.

2. Pests: The more common pests include red spider mites, large bagworm moths, red wax scale insects, etc. Once found, they should be sprayed with insecticides in time.

IV. Other issues

1. Meaning: The tree has a vigorous and majestic posture, a tall and long-lived shape, and a long history and culture. It is regarded as a symbol of firmness, chastity, and longevity. Together with plum and bamboo, it is known as the "Three Friends of Winter". It has the tenacity to overcome adversity and difficulties.

2. Toxicity: It is non-toxic. Pine wood is generally used as industrial raw material. The pine resin can be used to extract rosin. The seeds and pine needles of some varieties can also be used as medicine, which is of great practical value.