A summary of the solutions to the yellowing and curling of the leaves of tiger thorn plum (iron begonia)

Tiger thorn plum, also known as unicorn thorn, iron begonia, is a kind of vine edge prickly plant. Although it is said that there are thorns on the edge of the tiger thorn plum, it does not affect the mood of people to love it at all. In the process of breeding the tiger thorn plum, it is relatively easy to appear the phenomenon of yellowing and curling of the leaves. Here is a simple summary of the solution to the yellowing and curling of the leaves of the tiger thorn plum. For your reference.

1. The reasons for the yellowing and curling of the leaves of Prunus mume

1. Too much watering: Prunus sibirica belongs to fleshy stems and leaves, not afraid of drought, but afraid of waterlogging. Too much watering will hurt the root system and cause the leaves to yellowing and falling off.

2. Excessive fertilization: Chimonanthus przewalskii does not like fertilizer. If too much fertilizer or unfermented raw fertilizer is applied in the breeding process, the roots will be burned and the leaves will turn yellow.

3, bad air: the tiger thorn plum has certain requirements for the surrounding growth environment, which is most suitable for the place of ventilation and ventilation, so it is generally planted in the courtyard and balcony. If the indoor ventilation is not good and it is muggy, it will cause the leaves of tiger thorn plum to turn yellow.

4. Drug damage: when watering, the tap water should be hung for a few days, otherwise the chlorides in the water are toxic to the plants, causing the leaves to turn yellow and fall.

5. Winter dormancy: at the end of autumn, when the plum is in full bloom, it is also about to enter the winter dormancy period, so it is normal for leaves to turn yellow. Even if the leaves fall out, new leaves will sprout again in spring.

6. The temperature is too low: in the areas where the winter temperature is below 10 degrees, the old leaves will fall off, leaving only the top young leaves; when the temperature is lower, the leaves will all dry up and fall off.

2. The solution to the yellowing and curling of the leaves of Prunus mume

1. The change of soil leads to the curling and yellowing of leaves.

Solution: the best way to cultivate prunes is loose and well-drained rotten leaf soil. Do not use sea sand and river sand in saline-alkali areas. They are not suitable for the growth of flowers and plants.

2. Excessive watering leads to yellowing of leaves, curling and yellowing of leaves.

Solution: Chimonanthus is a succulent plant, resistant to drought, watering should not be much, if the basin soil is too wet for a long time, it will not only cause rotten roots, but also endanger the survival of the plant, so it is better to water the basin soil slightly dry. Water evaporates quickly in summer, watering should be more appropriate, but there can be no water in the basin. Watering too much during flowering will cause falling flowers and buds, and even cause rotten roots.

3. Lack of sunlight leads to curling and yellowing of leaves

Solution: Tiger thorn plum likes plenty of sunshine and should be given plenty of light all the year round. During flowering, if there is plenty of sunshine, the bracts will be colorful and the flowering period will be long; if the sun is insufficient, the flowers will be dim, and if they are cultured in shade for a long time, they will not blossom or rarely bloom. Tiger thorn plum likes warmth and is not resistant to cold. The northern area generally leaves the room in early May, puts it in the sunny place, and enters the room in early October, where there is sunshine in the room. The leaf color will be more beautiful when you keep it in the semi-shade in summer, or give it 50 {bf} shade. In spring and autumn, because the temperature is not very high, it is necessary to give it direct sunlight to facilitate its photosynthesis to accumulate nutrients. In winter, keep it indoors where there is bright light for maintenance. Usually put in indoor maintenance, should be placed in the southeast near the doors and windows, in order to receive light, and every month or one and a half months, to move to outdoor maintenance for two months

4. the low temperature leads to the curling and yellowing of the leaves

Solution: when the leaves fall off completely and enter a semi-dormant state when the room temperature is low during overwintering, watering should be strictly controlled to keep the basin soil dry. When the temperature is lower than 0 ℃, the plant will die from frost injury. If the room temperature is kept above 15 ℃ in winter, it will blossom continuously throughout the winter. Prunus angustifolia is a very suitable indoor flower planted in the north in autumn and winter.

5. Excessive fertilization leads to curling and yellowing of leaves

Solution: fertilizer should be applied less. Apply thin fertilizer 2 or 3 times a year in spring. Fertilization can be reduced in autumn. Tiger thorn plum does not like thick fertilizer, so it is possible to apply mature thin pancake fertilizer and water once every 3 to 4 weeks during the growing period. Too much fertilizer, especially too much nitrogen fertilizer, the branches grow, only leaves do not blossom. If the phosphorus and potassium fertilizer is applied twice during the bud period, the flowers will be more and the color will be bright.

6. The leaves are curled and yellowed by diseases and insect pests

Solution: whitefly can be sprayed with lice or imidacloprid. The number of shellfish is small, so it is OK to capture them manually.

Warm reminder: Prunus officinalis is a vine-like prickly plant of Euphorbiaceae. The common feature of Euphorbiaceae is that white milk is secreted from the wound after the tree is injured, which is toxic. The white milk secreted by the wounds of tiger thorn plum plants has a stimulating effect on human skin and mucous membrane, and accidental eating will cause nausea, dizziness and so on. It is a favorable weapon to protect themselves and prevent diseases and insect pests in the process of plant evolution. Family cultivation will not cause harm as long as it does not fold flowers for children to play at will. People can use Euphorbia plant stem and leaf impregnated filtrate to control aphids, red spiders and other flower pests because its juice is toxic, it is best not to pot indoors, as outdoor flower ornamental is also a good choice.