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This is a scale insect and is one of the three major insect pests of flowers.
The body of the scale insect is encased in a layer of carapace, and it is not easy to be effective when sprayed directly with drugs. It is like a blood-sucking lice, sucking the sap of the plant, thus causing great harm to the flowers and trees, the damaged plant not only grows poorly, but also appears yellowing of the leaves, early defoliation and other phenomena, and the plant withers and dies in severe cases. The affected flowers are Milan, jasmine, camellia, smile, etc.
Prevention and control methods: 1) Use liquor to water, the ratio is 1 2, and the surface layer of the potting soil is watered during insect treatment. Scale insects begin to move at room temperature 7 in spring. It can be watered once in April, and then once every half month or so, and it is effective for 4 consecutive times.
2) Use 50 ml of vinegar, put a small cotton ball into the vinegar and soak it, and gently rub it on the stems and leaves of the damaged flowers and trees with a wet cotton ball, and then the scale insects can be wiped off and killed. This method is convenient and safe, which can not only achieve the purpose of insect removal, but also make the damaged leaves green and bright again.
3) Gently rub the diseased plant repeatedly with alcohol, and can. Remove the scale insects, and remove them very cleanly and thoroughly. For example, when rubbing the diseased leaves of orchids with alcohol, not only can the scale insects be removed, but even the larvae that are not clear to the naked eye can be completely killed, and the harm of scale insects is rarely found in the second year.
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It's a pest, you go buy some pesticides to fight.
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Grow bugs, scale worms. Spray pesticides to remove insects, see more light in the future, pay attention to ventilation, increase humidity, and it will be fine slowly.
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Peacock arrowroot. Yes**.
The encyclopedia has an introduction to the maintenance method.
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This one is hydrangea, also known as hydrangea.
Hydrangea Leaves and Buds Hydrangea Dried Hydrangea Hydrangea, also known as Hydrangea, Hydrangea, Seven Variations, Hydrangeas, Pink Ball, is native to the Sichuan region of China and Japan. It is a deciduous shrub of the genus Hydrangea (scientific name: hydrangea) of the family Hydrangea, and its flowers are almost all asexual flowers, and the so-called "flowers" are only sepals.
Hydrangeas are native to our country and Japan. It was introduced to England in 1736. In Europe, cultivation is more common in the Netherlands, Germany and France, and red, blue, purple and other hydrangea varieties can be seen in florists.
There are also many hydrangeas planted in small gardens and in front of buildings. At present, the German company Ramppjungpflanzen is a world-famous manufacturer of hydrangeas, and it is also the main breeding and production unit of new hydrangea varieties. Secondly, the Dutch Men Van Company and the Israeli Yager Nursery are also the main manufacturers of hydrangeas.
In Asia, mainly in Japan, hydrangeas are abundant, and there are many varieties of hydrangeas in gardening stores, and many new varieties of exotic flowers can be seen, which are expensive and are ornamental as home potted plants. At present, the annual output of hydrangeas is 2.7 million pots, with an output value of 17 million US dollars, ranking 12th in the output value of potted flowers in Japan. In the Americas, mainly in the United States, cultivation is more common, and there are some quantities of potted and outdoor cultivation.
In China, the time of planting hydrangeas is earlier, and hydrangeas are planted in the Jiangnan gardens built in the Ming and Qing dynasties. The park built at the beginning of the 20th century is also inseparable from the planting of hydrangeas. Modern parks and scenic areas are planted in patches to form a landscape.
However, the potted ornamentation of hydrangeas is not very common, which brings excellent opportunities for the development and application of hydrangeas.
Hydrangeas, belonging to the honeysuckle family, deciduous shrubs or small trees. The leaves are opposite, ovate to ovate-elliptic, covered with stellate hairs. It blooms in summer and is inflorescence at the top of the branch with white neutral flowers on the edges.
The flowers are green at first, then turn white, and have a clear fragrance. Because its shape resembles a hydrangea, it is named. It is native to central and southwest China.
He likes dampness and is afraid of drought and waterlogging. Hydrangea is a common garden flower, its umbel inflorescence is like a snowball, clustered in oval green leaves, it is very beautiful.
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Flower candle is a perennial evergreen herbaceous flower, which likes a warm and humid semi-shady environment with good drainage, is afraid of drought and strong light exposure, and is suitable for growing day temperature of 26-32 and night temperature of 21-32. The maximum temperature that can be tolerated is 35 and the low temperature that can be tolerated is 14.
Commonly known as anthurium.
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Anthurium flowers are particularly beautiful when they are raised, and it is time to fertilize the soil and roots.
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The name of this flower is Bai for Flower Candle (Anthurium andraeanum), Du is often called "Red Zhi Palm", which belongs to the Araceae family Dao Flower Hui.
Candle genus. It should be noted that most of the plants of the Araceae family prefer a semi-shady environment and are not resistant to sunlight, so they are very suitable for indoor ornamentation. The brown spots on the leaves of the subject's potted flowers are caused by the burning phenomenon caused by too much light, so please place them in a place with bright scattered light, not in front of a window.
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This is the flamingo flower, the upper part of its flower spike is yellow, and the lower part is white.
The bracts that wrap the flower spike are erect and stretched, and the surface of the bracts is not shiny, and the bracts are pink; The flower spikes of the anthurium are yellow throughout, while the bracts that surround the spikes are flat and shiny on the surface, and the bracts are of two colors, one is scarlet and the other is orange-red.
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Don't have too much water and don't get in the sun.
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Name: Large-leaf umbrella.
Aliases: Queensland umbrella wood, Queensland shade tree, Australian duck foot wood, commonly known as fortune tree (in fact, it is different from ordinary fortune tree).
Family name: Austaceae A. woody foliage plants.
Morphological characteristics: umbel-shaped inflorescences, apical florets, white, flowering in spring, but potted plants rarely bloom.
Growth Habit: Suitable for warm, moist and well-ventilated environment, sun-loving and shade-tolerant, it grows well in loose, fertile, well-drained soil.
Propagation and cultivation: umbrella trees can be propagated by sowing seeds and cuttings. When sowing, it is best to sow the seeds immediately after harvesting, so that the germination rate is high. Spring, summer and autumn can be cuttings, generally cuttings and shaping combined; Cut off the branches of the irregular plant from 10 to 15 cm from the surface of the potting soil, and let the mother branch sprout several branches to cultivate a good tree shape.
Cut the cut semi-lignified branches into stem segments of 8 10 cm long and 2 3 outer nodes, and cut them into cuttings in river sand or perlite cultures, maintain a certain substrate humidity and air humidity, and pay attention to shading. Generally, it can take root in about a month. Thick branches with a high degree of lignification can also be propagated under high pressure.
Planting management: Umbrella tree potted plants can be mixed with garden soil and humus soil as a substrate. 3 October is its vigorous growth period, the growth is larger, generally once a month to fertilize, while keeping the soil moist, to ensure sufficient moisture, and frequent foliar spray, so as not to dry the air, the leaves fade green and yellow. In summer, avoid direct sunlight, pay attention to proper shading, generally 30 40%, so as not to expose the leaves to the scorching sun and lose their luster or burns, withered yellow.
Indoor furnishings should be placed in a place with a certain amount of diffused light, and attention should be paid to ventilation. In late autumn and winter, the amount of watering should be reduced and the amount of fertilizer should be controlled; Foliar fertilization can be carried out by spraying phosphorus and potassium fertilizers such as potassium dihydrogen phosphate in late autumn to promote the aging of branches and leaves and improve cold resistance in winter. Anthracnose or scale insects and red spiders will occur in greenhouses and indoor conditions of high temperature, humidity and poor ventilation, and should be observed and prevented in time.
Landscape use: The leaves of the umbrella tree are broad, soft and drooping, and the shape is umbrella-like; The branches and leaves are layered, the plant shape is elegant, the posture is light and not thin, and it is very layered, so it has been widely cultivated in various provinces and regions in China in recent years. Umbrella tree is shade-tolerant, easy to manage and maintain, can be placed indoors for a long time continuously, is suitable for hotels, venues, living rooms, corridors and other places to decorate the excellent medium and large foliage plants, but also quite ideal family living room, study, bedroom corner and other places of the ornamental plant!
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Hello! This kind of flower is called the fortune tree, it is very easy to raise, as long as it is watered frequently, basking in the sun, I have one in my office, it does not need any careful care, it is very easy to raise, and just cut a small branch from each branch and insert it in other flower pots to feed, take root, but in the spring when it is warm.
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It seems to be a cash cow, I used to buy about the same, and water it once every ten days and half a month.
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Aquatic plants can be raised in glass tanks with clean water.
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This is a pot of tiger piran.
The growth temperature is 18 27, and the growth is stopped if it is lower than 13. Keeping the room temperature above 10 can safely overwinter.
Watering should be dry and wet. The hardness of the water is not strict, and the water can be used in general. Spray water on the leaves 1 2 times a day during the growing season to keep the air moist and make the leaves dark green.
To control water in winter, the potting soil should be dried halfway before watering, and warm water can be sprayed on the leaf surface every 5 to 7 days. Avoid pouring water into the spray cluster to avoid rot caused by low temperature and stagnant water.
During the peak growing season, apply thin fertilizer water with a combination of nitrogen and phosphorus every 2 to 3 weeks.
The orchid grows vigorously and can grow normally even when it is full of pots. Generally, every 1 2 years, the combined ramets are combined in the spring and repotted. Because its leaf clusters are erect, it is advisable to choose a tube pot, such as a plastic pot and other pots with poor drainage, special attention should be paid to drainage.
Otherwise, excess water will accumulate and cause harm to plants. The pot is prepared with 70% humus, 30% coarse sand, and a small amount of bone meal.
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The first to have a large leaf is the "keel", which is a plant of the Euphorbiaceae family.
Correlation**. The second leafless is the "General Pillar", which is a cylindrical cactus of the cactus family.
Correlation**. The third is the purple-backed perennial, a plant of the genus Purple-backed Perennial in the family Duck Plantar.
Correlation**. I think it's caused by a lack of light, maybe you've been indoors for a long time, and the indoor light is too dark to meet the needs of these plants. The keel is not bad, but it must be given proper sunlight, otherwise it will slowly yellow and fall off. The general pillar has lost its leaves, and it is obvious that there is no light, or the light is too poor, and the cacti are more light-loving, so put them in a place with light.
The withered leaves of the purple-backed evergreen should be cut off and placed in a ventilated and semi-shaded place, and then given enough sunlight when it grows.
There is also watering, the keel and the general pillar are more drought-tolerant, so it is necessary to wait for the surface of the potting soil to dry before watering, and the purple-backed evergreen should keep the potting soil slightly moist. But be careful not to let the pots of these plants have stagnant water.
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Overlord whip, cactus family I don't know what, purple-backed evergreen. If that purple-backed evergreen is rotten at the root, there is no help. For those of the cactus family, less wind, less watering, do not bask in the sun at noon, and pay attention to heat preservation.
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