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What are the common diseases and insect pests in June snow? How to carry out prevention and control?

Published: 2024-09-19 Author: mysheen
Last Updated: 2024/09/19, The main results are as follows: (1) the disease is caused by Pythium and ultimate Pythium in fungi. it is a seedling disease which seriously threatens the growth of snow in June. Waterlogged disease spots began to appear at the base of the stem of the injured seedlings, then turned brown and sunken and atrophied, and then the diseased part quickly revolved around the stem, making the seedlings quenched. Finally, the diseased seedlings rotted and withered.

Making and Maintenance of June Snow Bonsai

June snow is one of the trees commonly used in Chinese bonsai. It has the characteristics of fine leaves, dense branches, thick stems and dew roots. Therefore, it is a good material for bonsai and is loved by gardening enthusiasts. Today we prepared some June snow bonsai pictures, welcome to comment and appreciate. Common cultivation of June snow are Phnom Penh (leaf margin golden yellow), spotted June snow and double June snow.

June snow bonsai pictures and production methods

[Plant Archives] Botany knowledge

Rubiaceae, June snow is. Evergreen small shrubs with numerous and dense branches. Leaves small, opposite, slightly leathery, oval or oblong, entire, surface dark green. Summer 6~7 months, axillary or terminal white floret, flower white belt blush or lilac, solitary or many cluster, corolla funnel shape. In full bloom, like snowflakes scattered, hence the name "June snow."

principal variety

1. Double petaled June snow, flowers for double petaled.

2. Double petals June snow, flowers for double petals.

3. Mosaic-leaf June snow, also known as mosaic-leaf June snow. The leaves have white markings.

4. Phnom penh june snow, leaf blade with yellow margin.

There are two common types on the market: one is clustered, with reddish flowers and trumpet-shaped flowers, which is coarse; the other is a single dry tree with pure white flowers and double petals, which is superior.

accessory species

White horse bone, very similar to June snow, but this species corolla is twice as long as sepals, while June snow corolla and sepals nearly equal length, can be distinguished. It is also commonly used in bonsai.

Shade wood, shorter than the original species, thick leaves, twigs upright upward growth, leaves smaller, dense twigs end, flowers more sparse.

June snow is produced in Jiangsu, Anhui, Zhejiang, Jiangxi, Hubei, Hunan, Fujian, Guangdong, Taiwan and other provinces, and is a common tree species under subtropical forests. Japan is also distributed.

Shade-loving, moisture-resistant, afraid of strong light, so wild, mostly born in the forest, ditch edge or shrub. Like warm climate, not cold, suitable for loose and good drainage loam, neutral soil, slightly acidic soil can adapt. Sprouting very strong, resistant to pruning.

It is an evergreen shrub plant. It blooms star-shaped white flowers every summer, like snow accumulated on trees. Some leaves are green, and the surface is small and smooth. The flowers can be divided into single and double petals. In modern times, purple flowers and variegated leaves have been cultivated.

June snow bonsai modeling types

June snow branches soft and tough, can withstand Panzha, divided into straight dry type, Qiu Qu type, cliff type and so on. If the pot body is high, it can be bred into cliff style. Cliff-style due to the size of different tilt is divided into semi-suspended, fully suspended, small suspension. The so-called semi-hanging, that is, the trunk basically horizontal basin mouth. A fully hung trunk should hang 45 degrees below the mouth of the basin. Small hanging trunks generally hang down about 30-40 degrees.

June Snow Bonsai Making Method

▲ Source of pile materials: propagation by dividing plants in March and cuttage propagation from April to October.

▲ Processing modeling: adopt "wood cutting method" processing, can also adopt "shearing and binding method" processing. Panza is often carried out from half deciduous leaves in winter to budding in spring. The trunk and main branches of snow in June are panza with metal wire, and the twigs are carefully trimmed and shaped.

▲ Transplanting on the pot: It should be carried out in February to March. Choose a lighter purple sand pot or glazed pot. The pot color should be slightly darker to form a contrast with the flower color. Basin soil requirements for rich organic matter, loose fertile, good drainage permeability of sandy loam.

▲ Light and temperature requirements: June snow growth period should be placed in a sunny, warm and humid, well-ventilated place, summer early autumn should be shaded 50%-70%, winter in the north should maintain room temperature 5-12℃.

▲ Water and fertilizer management: In June snow bonsai growth season, water should be frequently watered, not too dry and wet for a long time. Spray water on leaves 1-2 times a day in summer; reduce watering times in winter and keep the pot soil moist and slightly dry. P-K fertilizer solution with 0.5% concentration is applied 2-3 times in April and May every year; thin organic fertilizer solution is applied 1-2 times in winter, and fertilization is not suitable in other seasons. Avoid applying thick fertilizer.

▲ Pot turning and pruning: turn the pot once every 1-2 years, carry out in February-March or late autumn in spring, remove all old soil, and properly prune the roots. It can be combined with pot turning to lift roots and form hanging roots to improve ornamental value. Every winter after half-deciduous to the next spring before germination, plastic pruning, cutting short long branches, excessive long branches, thinning too dense thin branches, cutting off pests and other impact on the ornamental branches; growth period in time to pick the core, wipe buds, remove branches, etc., so as to maintain a beautiful shape.

▲ Pest control: aphids and snails occasionally occur in June snow bonsai. Aphids can be diluted with 500-600 times of wind oil; snails can be sprayed with 58% wind thunder emulsion 1500 times. Sometimes root rot can be obtained. At the beginning of the disease, 12% copper rosin acid emulsifiable solution 600-1000 times, or 50% root putrescine 800 times solution is used for root irrigation and foliar spray control, spraying (irrigation) once every 3-5 days, continuously spraying (irrigation)3-4 times.

The breeding method of June snow

June snow is a kind of lovely plant, white and lovely when flowering, used to decorate the home is very suitable, here we come to know about June snow breeding method:

Basic information about snow in June:

June snow (scientific name: Serissa japonica) is also called white horse bone, paniculate star, broken leaf holly, jasmine, tea, is an evergreen small shrub, generally will bloom in June, from a distance, such as silver wrapped, like June snow, elegant and lovely.

Nature likes sunshine, but also more resistant to shade, avoid strong wind and scorching sun, high temperature and scorching heat season should be sparse shade. June open fine white flowers, the smallest trees and leaves, a lot of ease, can do basin play. Love light shade, fear the sun, deep mountains under the leaves of many of them. Spring sub-species, or yellow plum when cutting, it is appropriate to water shallow tea. The temperature requirements are not strict, evergreen in South China and semi-evergreen in Southwest China. Strong drought resistance, lax requirements for soil. Potted appropriate with humus, loose fertile, permeability strong acid, moist culture soil, good growth.

June snow farming methods:

1, soil: drought resistance is strong, the soil requirements are not strict. Potted appropriate with humus, loose fertile, permeability strong acid, moist culture soil, good growth.

2. Watering: Do not water too frequently, keep the pot soil moist, and water it again when it is dry. In rainy season, there should be no ponding in the basin to avoid rotten roots. In summer, when the weather is hot and dry, spray water on the leaves in the morning and evening to cool down and increase air humidity to facilitate their growth.

3, sunshine: June snow cultivation maintenance is relatively simple, because of the sun exposure, during the growth period should be placed in the shade or shade shed. It is not suitable to survive in too strong light, otherwise it will affect the growth of branches and leaves.

4, temperature: before winter to timely move into the indoor warm, room temperature to keep above 5℃. At the same time to reduce watering, keep the pot soil half-dry, so that plants can achieve green and smooth effect.

5, fertilization: June snow is more fertile, but if too much fertilization will cause excessive growth of branches and leaves, affecting the beauty of the tree, just apply 1 decomposed cake fertilizer before winter and after flowering.

6, pruning: June snow germination ability is very strong, when the branches and leaves are too dense, it is necessary to timely prune the extra new branches, so as not to affect the tree beauty and nutrient consumption. After flowering, the disorderly branches protruding from the crown must also be pruned so as not to affect the viewing.

June snow breeding methods:

Cuttage and sub-plant propagation is often used, but also can be used layering, cuttage can be carried out throughout the year, with spring 2-3 months hardwood cuttage and plum season softwood cuttage survival rate is the highest. Plum season cuttings should pay attention to shade, winter cuttings need cold. It is better to divide plants at the beginning of spring before germination or at the end of autumn when growth stops. Dormancy branch cuttage in February to March, semi-mature branch cuttage in June to July.

June Snow's effects and effects:

Liuyuexue, also known as Gypsophila paniculata, Ririyou, etc., belongs to Rubiaceae family medicinal flower plants. Its bitter taste is bitter and cool. It has the functions of expelling wind and dampness, relaxing muscles and activating collaterals, clearing away heat and toxic materials, regulating spleen and regulating qi. It has certain curative effects on rheumatism pain, migraine, toothache, sore throat, stomatitis, neurodermatitis, damp heat jaundice, herpes zoster, leucorrhea and other diseases.

June snow bloom when a white, appears more elegant and lovely, used in the home decoration effect is better, appears fresh and natural, June snow breeding method to introduce to everyone here, I hope to help everyone.

June snow bonsai is not only elegant and beautiful in shape, but also the edge of the leaves of June snow in Phnom Penh is yellow, just like a ring of gold, and the white June snow flowers open in summer set off each other, it is very beautiful.

June snow is also called paniculate sky star, broken leaf holly, white horse bone, jasmine, tea.

It plant low, beautiful tree, in the hot summer will be full of white flowers, white as snow, hence the name. Beautify the room with it, not only give people the enjoyment of the United States, but also suddenly feel cool air, there is a feeling of forgetting the summer in June.

A, advantages: 1 beautiful tree, low plants, branch show node dense, small leaves;2 Qingyi chic, changeable posture, unique charm;3 developed roots, hanging roots exposed claws, often give people a sense of vigorous ancient;4 bark cracking, beautiful texture;5 four seasons cutting, beneficial to propagation;6 germination, rapid growth, pruning resistance;7 wide range of uses, can make a variety of different forms of bonsai. Especially suitable for jungle, mountains and rivers, cliffs, hugging (attached) stones and other combinations. Second, habits:

1. Likes loose, fertile and breathable slightly acidic soil;2. Likes semi-shady and semi-sunny, well-ventilated high temperature and high humidity environment;3. Likes humidity but cannot accumulate water, afraid of drying, afraid of sun exposure;4. Intolerant to low temperature, protect below 5 degrees;

Third, the production points: south pile mining, northern cuttings. 1 Mining piles: conventional methods. 2 cuttage: conventional methods, all seasons can be. Generally three years into shape, five years into the scene. 3 Trimming: Conventional methods. June snow germination strong, rapid growth, resistant to pruning, in addition to winter, according to the need to often carry out. 4. Climbing: June snow branches are soft and beneficial to climbing. In the early stage, the skeleton is good, the trunk is fixed, and the stocking is thickened. 5 root: root is a major feature of snow in June, must be taken seriously, finishing, pruning, root once a year. 6 Stone distribution: June snow root system developed, hanging roots exposed claws, maintenance stage root cloth stone is very important, design scheme and stone selection must be careful, once into the scene, difficult to modify. 7 with pots: due to June snow plant low, tender green full branches, white flowers full of trees, multi-use dark shallow pots. 8 joint planting: with June snow binding joint planting, can quickly form a style like southern banyan, Japan and Taiwan potted trees.

Four, maintenance points: 1 during the maintenance of large fertilizer management, molding period according to the situation control;2 according to the habit to create a maintenance environment;3 do not thirst, June snow is very sensitive to this, light dead branches, heavy dead piles. 4 winter antifreeze is the key to maintaining snow in June, can not be careless.

June Snow's flower language is:

Gan do supporting role of love, endless love, care, bring good luck, pure heart.

 
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