Juniper leaves are yellow and dry from the inside?

The condition of juniper leaves is probably rotten.

Juniper, is a cypress family, juniper genus.

juniper, which is an arbor, up to 12 meters tall; The bark is brown, longitudinally lobed into long strips and flakes that fall off; Branches spread obliquely or straight, crown tower-shaped or cylindrical; The twigs are drooping, triangular. Leaves three lobes whorled, strip-lanceolate or strip-spine-shaped, up to 2 cm long, rarely up to cm, up to 2 mm wide, apex acutely acute, slightly concave above, midrib slightly raised, green, with a white, rarely purple or pale green stomatal band on each side, the stomatal band slightly wider than the green side band, confluent at the apex of the leaf into 1, green below, shiny, with longitudinal blunt ridge, cross-sectional crescent. The male flowers are spherical or oval, 4 to 6 mm long, with an acutely pointed apex of the septum and a longitudinal ridge on the back.

The cones are nearly spherical or broadly ovate, 7 to 10 mm long, 6 to 9 mm in diameter, ripe for two years, pale reddish-brown when ripe, detached by white or powdery powder, with 3 radial wrinkles and 3 blunt heads at the apex, occasionally slightly dehisced at the top; Seeds 3, sparse 1, half-moon round, with 3 to 4 ridges, pointed apex, 3 to 4 resin tanks near the base.

Habitat of origin. Endemic tree species in China, widely distributed, growing in central Taichun, southern Jiangsu, southern Anhui, Zhejiang, western Fujian, Jiangxi, western Hubei, southern Hunan, southern Shaanxi, eastern Gansu, northeast Qinghai, southern Tibet, Sichuan, Guizhou, central, northern and northwest Yunnan; Its vertical distribution zone gradually rises from east to west, ranging from 200 to 500 meters in eastern China, 1300 to 2300 meters in western Hubei, southern Shaanxi and eastern Sichuan, and 1800 to 3400 meters in western Sichuan, Tibet and Yunnan.

Key Value: Material: sapwood light yellow, heartwood reddish-brown, straight and uniform texture, fine structure, specific gravity, aroma, water resistance. It can be used as ship bottom, bridge columns, pile wood, handicrafts, stationery and furniture.

Scenery: Juniper branches droop, beautiful tree shape, in the Yangtze River basin major cities to cultivate as garden trees. Because of its beautiful shape, cold and drought resistance, strong resistance to stress, green leaves, evergreen in winter and summer, and reddish-brown or blue-black fruits, it is one of the preferred tree species in urban and rural greening and new rural construction.

It is the most common plant in urban greening. It can be planted with plants, cluster plants, and belt plants. Juniper has a strong endurance to polluted air, and grows well on the roadside in urban areas, which does not obstruct the line of sight, and can effectively absorb dust and purify the air.

Juniper bushes are planted under the window and next to the door, which is very decorative, and the summer green holly does not block the light and does not obstruct the view, especially in the snow. Juniper is planted in lawns, flower beds, rocks, and underforests, which can enrich the green level and increase the ornamental beauty.

Environment: Afforestation tree species that can also be used for soil and water conservation.

The yellowing and withering of cypress leaves may be caused by insufficient light, so the cypress tree needs to be moved to a bright place for maintenance. It may also be caused by overwatering, so it is necessary to drain the water in the soil in time and transfer the cypress to a ventilated place for maintenance. It may also be caused by the lack of nutrients, and when the cypress is maintained in the later stage, it is necessary to apply diluted liquid fertilizer every 1 week to supplement nutrients.

Cypress trees are suitable for growing in a sunny environment, if there is a lack of light, it will cause the cypress to appear yellow, dry up, and the growth rate will be slowed down, so the cypress needs to be placed in a bright place for maintenance, and more than 6 hours of light are given every day, so that the cypress can grow vigorously.

Cypress is suitable for growing in a humid environment, but the waterlogging tolerance is poor, when watering the cypress to ensure that the soil is in a slightly moist state, too much watering will cause the soil to produce water, resulting in root rot, the leaves will also be yellow, need to drain the water in the soil in time, and place the cypress in a more ventilated position for maintenance, so that the water can evaporate as soon as possible.

Cypress has a low demand for nutrients during the growth period, but if it is not fertilized for a long time, it will lead to a lack of nutrients in the leaves and rhizomes of the cypress, and the leaves will also appear yellow.

Cypress is suitable for growing in moist slightly acidic soil, if the soil is alkaline or compacted, it will also cause the leaves of cypress to appear yellow, dry condition, you can add an appropriate amount of diluted ferrous sulfate solution to the soil to adjust the pH of the soil, so that the soil is slightly acidic.

The leaves on the tree are turning yellow and the texture is dry.

It is mainly caused by leaf blight (red leaves) disease and early yellowing caused by biotic and abiotic factors, and the main reasons are as follows:

1. The pathogenic fungus is mainly one species of alternariasp, which infects cypress trees and causes leaf blight.

2. The bite of underground pests on the bark of seedlings is also easy to cause yellow leaves.

3. Yellowing and scorching of leaves caused by lack of fertilizer or unreasonable fertilization.

4. Insufficient soil moisture can not meet the needs of cypress growth and development, resulting in thin or wilted leaves and yellow tips, resulting in early defoliation. Or poor drainage, soil water, resulting in anaerobic respiration of roots for too long, accumulation of excessive alcohol, poisoning and rotten roots. or soil compaction, poor aeration, resulting in yellow leaves.

5. The planting is too dense, the ventilation and light transmission are poor, and the plants compete for fertilizer, water and shade, which affects photosynthesis and large respiratory consumption, resulting in yellowing of leaves and early defoliation.

6. Caused by improper field management. For example, the roots are injured when the seedlings are raised, the roots are nested when planting, and the animals bite the branches or artificially hurt the skin, resulting in yellow leaves.

It is a pus-like mucus containing bacterial bodies that overflows from the diseased part of the disease, usually in the form of dewdrops, or scattered as a layer of bacterial fluid. Generally, it is in a place with insufficient light and poor ventilation for a long time, and it occurs more frequently when watering, which can be improved by improving the maintenance environment and reasonable management, without spraying for prevention.

The yellowing of juniper bonsai leaves is mostly caused by three factors, namely overwatering, lack of nutrients and insufficient light. If it is overwatered, the root system may have rotted, be careful to loosen the soil, evaporate the water as soon as possible, and watering can be carried out when it is dry and wet. If there is a lack of nutrients, it should be supplemented in time, and compound fertilizer can be applied.

If you don't get enough light, move to a well-lit place and rehydrate to recover.