Month: August 2023

Categories
plant reproduction

The key points of propagation of solo spring

　　It is an epiphyte and is also known as “Double Flying Swallow” in Guangzhou because its flowers resemble two flying swallows when they bloom. The flowering period of the spring can be up to a month long, so it is loved by many flower lovers.

独占春的繁殖要点

Doppelganger

　　Separation

　　In the spring and fall can be carried out, generally every three years to divide the plant. Where the plant grows strong, dense pseudobulbs can be divided, after the division of each clump to save at least 5 connected to the pseudobulbs. Reduce watering before dividing, so that the potting soil is more than. After dividing the plants on the pot, the first broken tiles over the hole in the bottom of the pot, and then paved with coarse gravel, accounting for the depth of the pot 1 / 5 to 1/4, and then put a small amount of fine soil and coarse grain soil, and then planted with humus-rich sandy loam. Planting depth to the pseudobulb just buried in the soil strength, the edge of the pot to stay 2 cm along the mouth, paved with Cuiyun grass or fine gravel, and finally watered, placed in the shade for 10-15 days, to keep the soil moist, and gradually reduce the watering, for normal maintenance.

　　Sowing

　　DuoZhanChun seed is very fine, there is only an incomplete development of the embryo within the seed, germination force is very low, coupled with the seed coat is not easy to absorb water, with the conventional method of sowing can not sprout, so you need to use orchids or artificial media to supply nutrients, in order to germinate. Sowing the best choice is not yet cracked fruit, surface sterilized with 75% alcohol, take out the seeds, with 10% sodium hypochlorite soak 5-10 minutes, take out and then rinse with sterile water 3 times can be sown in a culture bottle with culture medium, and then put in a dark culture room, the temperature is maintained at 25C or so, sprouting and then moved to the light that can form the original bulb. From sowing to transplanting, it takes half a year to one year. Tissue culture has been successful, where possible, this method of reproduction.

Categories
plant reproduction

Reproduction points of Dianshan tea

　　Dianthus can be potted or cultivated in the open ground can be, but in the cultivation process need to have a certain temperature difference, Dianthus can naturally overwinter in the area south of the Huaihe River, generally can withstand -8 ℃ of low temperature. Artificial propagation of Dianthus can be sown and grafted.

滇山茶的繁殖要点

Dian Shancha

　　The propagation of Dianthus is generally by seed propagation and grafting. Autumn fruit harvesting, drying in the shade, the seeds are watery, oily, short-lived, and should be sown in the mountains immediately after taking out the afforestation site, plant spacing 1 * 1 m, each hole sown into the seed 2 – 3, to the next spring germination, to strengthen the management of nurturing. Or the seeds will be stored in wet sand, to the following year in early spring sown in the seedbed, about 20 days germination, to the seedling height of 20 – 30 centimeters, in the rainy season in May – June transplanted to the mountains. By the method in April – May, with camellia (details) as a rootstock, and Dian camellia against the joint, about 100 days to heal, Dian camellia scion can be cut from the mother tree, that is, into a new plant. Cuttings can also survive, but the survival rate is low. Tissue culture method can also be tried to propagate good asexual lines.

Categories
plant disease

Fusarium mealybug damage and control

　　Fuschia mealybugs were first found to be harmful to cotton, but with the progress of science and technology, it is found that Fuschia mealybugs are very harmful to many plants, and if no attention is paid to the prevention and control of the value of the plant will be irreversibly harmed.

扶桑绵粉蚧的危害及防治

Fuschia mealybug

　　Fusang mealybug is a kind of plant quarantine pest which was introduced into our country from abroad and caused very serious harm, it was first found in Guangdong province of our country in 2008, and in recent years, with the transportation of host plants of flowers and trees, it has spread to 11 provinces and regions, such as Fujian, Yunnan, Guangxi, etc. The mealybug of Fusang mealybug is a kind of plant quarantine pest which was introduced into our country from abroad and caused very serious harm.

　　Adults and caterpillars of Fusang mealybugs are able to suck sap from hard plant tissues. Meanwhile, coal staining disease due to honeydew secreted by the mealybugs hinders photosynthesis of the plant, which ultimately leads to stunted growth and even death in severe cases.

　　Therefore, from guangdong, fujian, yunnan, guangxi and other provinces and cities transfer fusang, hibiscus and other flowers and trees, must be to the local plant quarantine station for the transfer of quarantine, by the quarantine qualified, the issuance of the “phytosanitary certificate” can be transferred only after.

Categories
plant disease

Time-sensitive characteristics of plant pests and diseases

　　Plants in the occurrence of pests and diseases will have its own characteristics, plant diseases is a major feature of the timeliness, accurate understanding of these characteristics for the treatment of plant diseases is very beneficial. So what is the timeliness of plant diseases and pests?

植物病虫害的时效性特点

Azalea.

　　Plant diseases should strictly follow the prevention and control of “three times” (application time, onset period, infiltration time) of the timeliness; “four quasi” (the method should be accurate, the drug should be accurate, the concentration should be accurate, the dosage should be accurate) of the pertinence; a continuum (the treatment of the disease) (the continuity of the “treatment program”). This is the key to effective control of plant disease occurrence, damage, proliferation and spread, but also plant disease prevention and control of the most technical content of the initiative points.

　　As with all biological disease control, plant disease control should also prevent “excessive” treatment. At present, in the field of garden plant diseases, this situation is not much, far less than the garden plant pests “excessive” control phenomenon is obvious. Landscape plant prevention and control problems are still mainly not treated, wrong treatment, leakage treatment, production operations in the behavior of treatment and not prevention, treatment without prevention, not treatment against, treatment is not timely, treatment is not in place, the treatment shall not be law.

Categories
plant cultivation

Planting Points of Knotweed Flowers

　　Knotty (details) flowers, also known as the dream tree, for the Ruixiang family plant Knotty flower buds, a deciduous shrub. Knotty flower is a very ornamental value of the plant, and there is a certain medicinal value, is a rare plant. If you want to have a deeper understanding of the knotweed, you may want to read the following content.

结香花的栽种要点

Knotweed

　　Growth habit: Prefer mild and cool climate. Planted at an altitude of more than 500m in the mountainous areas, good growth, cultivated at low altitudes, slow growth, short plants, small flowers, low fruiting rate. Cultivation in well-drained, loose and fertile loamy soil is appropriate.

　　Cultivation techniques: seed and planting propagation.

Seed propagation: Sow as you go. Sow the seeds evenly in the seedbed, cover with 2cm of soil, and water and moisturize. When the seedling height of 25-30cm, according to the row spacing 30cm × 30cm hole, each hole planted 1 plant.

　　Planting propagation: dig out and plant the young tillers sprouting from the roots of the plant. Tread tightly and pour enough rooting water. Field management: when the seedlings are about 5-7cm high, inter-seedling, keep the spacing between plants 3-4cm. after walking planting until before closing the rows, plow and weed 3-4 times a year. In spring and summer, apply 1 time of nitrogen fertilizer or compound fertilizer, and in autumn and winter, apply 1 time of compost or grass ash. Fertilize the soil after fertilizing.

Categories
plant cultivation

Forsythia’s water and fertilizer management points

　　Forsythia is also known as yellow Shoudan, yellow flower pole, yellow ribbon, ribbon Dan, categorized as the genus forsythia in the family Xylariaceae. Produced in China’s northern, central and northeastern provinces, now cultivated everywhere. Forsythia spring flowers full of trees, golden yellow branches swaying with the spring wind is very natural and elegant, then forsythia in the fertilization management should pay attention to what problems?

连翘的水肥管理要点

Forsythia

　　Forsythia is drought-resistant and prefers a moist environment, the first three years of planting should strengthen the watering management, in addition to watering the first three water, but also from April to September every month depending on the temperature and precipitation watering 1-2 times in July and August for the precipitation period, the weather is not particularly dry, can be less watering or not watering, the end of November or the beginning of December to be watered through the antifreeze water. The following year, the beginning of March should be poured good thawing water, watering should be controlled during the flowering period, after flowering new leaves should be watered once thorough water, four to September should also depend on the temperature and precipitation watering 1-2 times. The third year should also be according to the first two years of watering method to manage. From the fourth year onwards, and then every year in early March, the end of November to pour good thawing water and anti-freezing water, spring and summer high temperature period when depending on precipitation watering, other time to depend on the day growth.

　　Forsythia likes fertilizer, fertilizer enough branches and leaves luxuriant and colorful flowers. To forsythia fertilization, in addition to planting to apply sufficient fertilizer, should also be in the late autumn of the year combined with watering antifreeze water applied a dried chicken manure or sesame seed paste residue, the second year after the flower of a nitrogen fertilizer, July, August bud differentiation period applied a phosphorus and potassium composite fertilizer, the end of the autumn and then applied a dried chicken manure, and then every year according to the management of this method can be.

Categories
plant reproduction

Aizenjin reproduction points

　　Aizen-nishiki is not difficult to cultivate, but its branches and trunks are particularly easy to lignify, and it produces a lot of aerial roots like ficus, which makes it very easy to grow in groups. There are many ways to propagate Aizome artificially, and the survival rate is relatively high, so the difficulty of propagation is very low.

爱染锦的繁殖要点

Aizen-nishiki

　　Aizumi is mostly propagated by sowing seeds, taking cuttings, or planting them in buds. Cuttings are the most common, and they can be rooted by cutting a small piece and inserting it into the soil. However, leaf cuttings are not suitable because the leaves are thin and not easy to survive. Stem cuttings are preferred for propagation because they have a high survival rate and are well-branched, but leaf cuttings are less likely to survive because of the thinness of the leaves.

Categories
plant reproduction

Imperial crown commonly used propagation method introduction

　　Cultivation is difficult, artificial propagation of the crown is also more difficult, if you do not know its habits, the survival rate will be lower. Artificial propagation of the imperial crown can be sowing or grafting methods, I will provide you with a detailed introduction to the two methods of propagation of the imperial crown of the notes.

帝冠常用的繁殖方法介绍

Imperial Crown

　　First, sowing: the best in May-June, sown in indoor pots, the room temperature should be controlled at 22-24 degrees Celsius, 7-8 days after sowing germination, but the growth of live seedlings is more slow than the adult plant, and the mother plant seed fructification rate is very low, it must be heterogamous pollination, in general, more difficult to bear fruit. Fruit maturity is very long in the early stages of maturity, a large part of the mature fruit is no seed or unsuccessfully fertilized, so the seed germination rate of the crown is very low, the first year after seed germination mortality is very high, the reason is that the crown of the seedling’s adaptability is worse than the adult plant, the planting of the slightest error (such as over-drying or over-wetting), the seedling will die, so the crown of the live seedlings is extremely difficult to come by.

　　Second, grafting: generally in June-July, rootstock to measure the sky ruler (details) and grass ball is good, scion using the crown of the adult plant to cut off the top of the promotion of the birth of the sub-ball, due to the crown of the flesh of the hard and dry, the operation should be fast. Imperial crown grafting mortality rate is very high, after grafting to maintain high air humidity, can improve the survival rate, but once the rootstock injury death or ball is too large need to land, landing scion is extremely difficult to root, even if the daily strict management, but also need about 3 years before rooting, once the management of negligence of the scion will die, so generally soon after landing scion will not be able to take root and dry death or too much water and rot, so do not Therefore, grafting is not recommended.

Categories
plant disease

Symptoms and control methods of Eucommia branch blight

　　Eucommia has a beautiful tree shape and straight trunk, it is a very good street tree and shade tree, but branch blight is also a common disease of Eucommia, if you planted Eucommia in your yard, then you need to pay attention to the prevention and control of this disease. I’ll introduce you to the symptoms and control methods of eucommia blight, if you need to know about it.

杜仲枝枯病的症状及防治方法

Eucommia

　　Symptoms

　　This disease occurs in the lateral branches of Duchess, first the top is infected, and then gradually to the base of the expansion of the cortex of the diseased branch from gray to reddish brown, the later part of the disease under the cortex of the growth of granular material. When the diseased part develops to the ring, causing the branches to die. This disease began to occur from April to June, July to August for the peak incidence.

　　Second, prevention and control methods

　　Strengthen water and fertilizer management, promote robust plant growth, to prevent wounds; will be infected withered branches cut off, cut mouth coated with Bordeaux liquid; such as the onset of the disease, can be sprayed in the early stage of the onset of the 65% Dyson Zinc Wettable Powder 500 times liquid or 70% methyltobutoxin 600 times liquid, every 7 days 1 time, sprayed for three or four consecutive times can be effective in controlling the disease.

Categories
plant disease

Symptoms and control of purple leaf plum brown spot perforation

　　Purple plum is a small deciduous tree of the genus Li of the family Rosaceae, which is named because of its perennial purple-red color. It is also a famous foliage species, especially its purple leaves are very unique. However, if it suffers from brown spot perforation, it will greatly affect its ornamental value.

紫叶李褐斑穿孔的症状及防治

Purple Leaf Plum

　　Symptoms

　　Brown spot is a fungal disease, mycelium overwintering in the diseased leaves. The pathogen spreads with the help of wind and rain, and it usually starts in June and peaks in August. The disease is serious when it is windy and rainy. Diseased leaves produce purple-brown dots at the beginning of the disease, and then expand into concentric spots, about 3 mm in diameter. The center of the spot is yellowish white or brown, and the edge is purple-brown. Later, the spots fall off to form perforations. The disease mostly harms the old leaves.

　　Second, prevention and control methods

　　Autumn and winter clearing, burning off the dead branches and leaves, reduce the source of infection; with pharmaceutical control can be in the purple leaf plum sprouting before spraying Pomerol 3 degrees to 5 degrees of thiosulfuric acid or 1: 1: 120 times the amount of Bordeaux solution. Spray 80% daisen zinc wettable powder 600 times after the leaf spreading, every 7 days to 10 days to spray 1 time, even spray 3 times can be.