How to spend winter in winter common diseases and insect pests of Prunus triangulata and their control methods

As we all know, the flowers of triangular plum are strange and beautiful, and they are full of branches when they bloom. And usually bloom in summer, triangular plum needs strong light, leaves and flowers will fall in the semi-shade, so how should we feed triangular plum in winter?

How does triangular plum spend the winter?

1. Triangulated plum overwintering place

Triangular plum is not cold-resistant, and when the temperature drops to six to eight degrees, the conservation site needs to be transferred. Triangular plum dew ground can not survive the winter, put in the outdoor sunny shelter, back against the north wall built by the double-layer plastic shed can survive the winter. Or put in the closed south balcony, put 40-80cm shelter from the wind to the sun, it is safer to survive the winter, if you can bag and keep warm.

2. The time of entry of Triangle Plum

When the temperature reaches 8 degrees, the south usually enters the room in mid-late November and the north around late October.

3. Overwintering management of triangulated plum

Trim Bundl

Before moving indoors, trim the plum to retain the main branches and some flowering branches to reduce the consumption of nutrients.

Stop fertilizer and control water

In winter, when the temperature is low and the water evaporates slowly, the watering is reduced and the basin soil is kept dry. Stop fertilization to prevent the temperature after entering the room is higher and the vegetative growth is vigorous again, and the cold tolerance is weakened.

Triangular plum in winter will enter a short dormant period, the phenomenon of fallen leaves, dormant leaves as far as possible not to water, the soil is too dry can pour a small amount of (warm) water to the edge of the basin.

Control aphids

When the plant is moved indoors in winter, aphids and insect pests are very easy to occur before falling leaves, which need to be controlled in time.

Increase temperature, ventilation and replenish light

After moving to the room, put the plant in a place with good ventilation, sufficient sunshine and suitable temperature, and pay attention to window ventilation at ordinary times to avoid muggy environment.

Triangular plum leaving room time

Triangular plum should come out of the room late. In late March, the triangular plum in the balcony sprouted new buds with the rise of temperature, and some of Ching Ming Festival already had flower buds differentiating. If they leave the room at this time, the flower buds cannot blossom in May due to freezing. Therefore, they should not leave the room until the minimum temperature is stable at 12-15 degrees, and leave the room from April to May. After coming out of the room, it is necessary to trim the dead branches, useless branches and beautify the plant shape.

Common diseases and insect pests of Prunus mume and their control methods

Triangular plum is also called leaf flower, the common pests are scale insects, and the common diseases are leaf spot and brown spot. In peacetime maintenance, as long as careful care, observation, similar diseases and insect pests can be avoided.

Symptoms of leaf spot: the spot is yellow-brown at first, surrounded by a yellowish-green halo, then expands into a nearly round or irregular spot, the edge is dark brown, and in the later stage, black dots appear on the spot.

Prevention and control methods:

A small number of disease spots are found on the leaves, which can be smeared with Dakening cream ointment and cut off the branches with more disease. At the initial stage of the disease, 50% carbendazim wet powder 500 times solution can be used for prevention and treatment, once every 7 to 10 days, and in serious cases, it is sprayed again on the fourth day according to the actual situation, and then every 7 days. The control effect was good for 3 or 4 times in a row.

Symptoms of brown spot of Prunus mume: the disease mainly harms the leaves of Prunus mume, producing yellowish brown to light brown spots with a diameter of 0.1~0.5cm on the leaves.

Prevention and treatment methods: a small number of diseased leaves were removed and burned in time. At the initial stage of the disease, 400 times of 70% manganese zinc wettable powder was sprayed every 10 days for 3 consecutive 4 times.

Triangular plum scale insect symptoms: in the environment of poor light, poor ventilation, high temperature and high humidity, many kinds of shell insects are easy to occur. When the disease occurs, there will be many small white protuberances on the leaves, affecting the ornamental. In the later stage, the shell insects sucked leaf juice, which caused damage to the leaves and affected the plant growth.

Control method: a small amount of shell insects are found, which can be washed with clean water or scraped off with bamboo sticks.

In severe cases, it can be sprayed with 45% malathion EC 1000 times. Try not to choose pesticides when family maintenance, and pay attention to the concentration of biological agents in time, so as not to affect the health of the family.

The habit of triangulated plum

The suitable temperature for the growth of triangular plum is 15-30 degrees Celsius, including 19-30 degrees Celsius from May to September and 13-16 degrees Celsius from October to April of the following year. It can withstand a high temperature of 35 degrees Celsius in summer and an ambient temperature of not less than 5 degrees Celsius in winter, otherwise it is easy to freeze leaves.

Triangular flowers like light, are positive flowers, lack of light in the growing season will lead to plant growth weakness, affecting pregnant buds and flowering, therefore, except for new pots throughout the year, the seedlings should be placed in the semi-shade first. Winter should be placed in front of the south window.

Triangular plum likes loose and fertile slightly acidic soil and avoids waterlogging. When potted, one portion of rotten leaf soil, peat soil, sandy soil and garden soil can be used, and a small amount of rotten cake residue can be added as base fertilizer to prepare culture soil. Flowering plants should turn the pot and change the soil once a year, and the dense and senescent branches should be cut off with scissors before sprouting in early spring.

Water should be watered once a day in spring and autumn, and once in the morning and evening in summer. The temperature is low in winter and the plant is dormant. Watering should be controlled to keep the basin soil moist.

When will the triangular plum be pruned?

In the cultivation of triangular plum, in fact, it can be pruned all the year round, generally pruning many times, but not too much.

Pruning trimmed plum is usually after the full bloom, when the full bloom is over, pruning, you can cut off the rest of the flowers. In this way, the consumption of nutrients can be reduced and nutrients can be accumulated for the next flowering of triangular plum.

Pruning during the growing period is usually done to trim plums to see which branches are not suitable for preservation, so they are all cut off, which can also promote lateral growth and increase the number of flowering branches.

In daily pruning, people need to prune those poorly growing branches and maintain the plant shape to make it in the best condition. After flowering, in addition to cutting off the residual flowers, but also some branches that affect growth and ornamental are cut off, the remaining branches do not need to be trimmed, can be slightly modified, do not re-cut.

Having said so much, it is very difficult to take care of and cultivate a triangular plum. In our life, we can see triangular plum everywhere, flowers bloom into pieces, red flowers and green leaves reflect each other, do not have a fresh flavor. Although the triangular plum is not very perfect, it gives people the feeling that it is so calm, not delicate and artificial at all. The brighter the sun is, the more gorgeous the triangular plum is.