How to grow 3 types of Echinacea
How to reproduce echinacea
The propagation methods mainly include sowing, cutting, and branching. Sowing: Sowing in spring and autumn, first pour the substrate thoroughly, and then sow. Seedlings emerge in about 15 days at a temperature of 22°C, and can be transplanted after growing two true leaves. Cuttings: Cut sturdy branches in spring, keep 2 to 4 leaves and no growth points. The length of the branches is 5~6cm, the cutting edge is under the node, and it can be inserted at any time. Rectification: Performed in spring and autumn. The main reason is not to damage the roots. It can be carried out together with root repair.
Sowing method
After the open-field seedbed is deep-turned and leveled, it is watered thoroughly, and the seeds are sowed evenly after all the water has penetrated into the ground.
When sowing, ensure that about 1,000 seeds are sown per square meter, and the temperature is controlled at about 22 ℃, and the seedlings can emerge in 13 to 15 days.
When the seedlings have grown out of 2 true leaves, they can be transplanted.
Ramification
Echinacea is a perennial herb. For the perennial mother plant, it can be propagated in spring and autumn.
Take the roots of the mother plant out of the ground, take care not to damage the new roots, remove a part of the soil, and remove the old roots and diseased roots.
Separate the mother plant from the rhizome with a knife, divide it into several plants evenly, keep each plant with 4-5 top buds, and then plant it in the pre-prepared substrate.
Cutting method
Cutting seedlings should prepare large mother plants and move them into the greenhouse in winter for maintenance. Wait until spring to take strong branches and retain 2 to 4 true leaves and no growth points.
The length of the branches should be controlled at 5-6 centimeters, and the cut should be under the node, and the cut should be inserted at any time.
The depth of the cuttings is one-third to one-half of the length of the cuttings. The seedbed of the cuttings should not be too humid, but the air humidity of the surrounding environment should be high. The temperature of the surrounding environment should be controlled at 22 ℃, and 20 to 30 days are enough. Take root.
Colonization
The seedlings of Echinacea chrysanthemum have 3 branches and are planted when they are about 10 cm high.
Use a 15×13 cm nutrient pot for potting, one plant per pot, and one-third of each of the potting soil with agricultural manure, garden soil and fine sand. Mix and sieve.
After the seedlings are planted, the pot soil should be compacted, watered enough, and placed in a cool place. After 7-10 days, move to the sun to start normal growth.
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When is Echinacea sowed and how to sow
Source: Baihua Flower Valley 1.57W times
Echinacea likes to be warm and can be sown in spring and autumn. After the seeds are mature, collect the seeds. You can also buy Echinacea seeds and choose mature, full, and undamaged seeds. Choose a place with deep soil, good drainage, fertile and nourishment, and arrange the soil in advance. Sterilize the seeds to promote germination, arrange the soil, sow the seeds evenly, cover with a layer of soil, and water thoroughly to promote the germination of the seeds.
1. When to sow
Echinacea likes a warm climate and is highly adaptable to the environment. The surrounding climate is more favorable for seed germination. You can also sow in summer, but pay attention to cooling down and shielding the glare. The temperature in winter is low, so sowing is not recommended, which is not conducive to the germination of seeds.
When will Echinacea sowing and how to sow the second piece
2. Seeding method
1. Collect seeds: After the seeds are mature, collect the seeds. You can also buy Echinacea seeds. Choose mature, full, and undamaged seeds to increase the germination rate of the seeds.
2. Arrange the soil: Echinacea does not have high requirements for the soil. It can germinate in ordinary soil. In order to promote seed germination and increase the germination speed, you can choose a place with deep soil, good drainage, and fertile nutrition to sow, and arrange it in advance. Good soil, apply foot fertilizer.
3. Treatment of seeds: In order to increase the germination rate, the seeds should be treated in advance, soak them in warm water for two or three hours, then soak them in potassium permanganate solution for disinfection, remove them and place them aside to dry.
4. Sowing: Arrange the soil, sow the seeds evenly into the soil, cover with a layer of soil, and water thoroughly to promote seed germination.
When is Echinacea sowing and how to sow the fourth piece
5. Post-sown management: After sowing, pay attention to maintenance and management, keep the soil moist, and remove weeds in time.
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Echinacea pests and control methods
Source: Baihua Flower Valley 1.57W times
Echinacea is a perennial herb of the Compositae family. It has huge flowers and bright colors. It is one of the most popular flowers in recent years. However, during specific maintenance, pests must be avoided, so what should be done?
Echinacea pests and control methods
Pests of Echinacea: Pieris rapae
Symptom
Pieris rapae is widely distributed in China and occurs in all provinces, especially in northern areas. Adults are active during the day, most active at noon on a sunny day, with a lifespan of 2 to 5 weeks.
When the Pieris rapae feeds, it discharges fecal contamination while feeding. The larvae have a total of 5 instars. Before the third instar, they usually damage the back of the leaves. After the third instar, they turn to nibble on the leaf surface. The food intake of the 4-5 instar larvae accounts for 97% of the food intake of the entire larval stage.
Pieris caterpillars gnaw on the leaves of Echinacea. Before the 2nd instar, they only gnaw on the mesophyll, leaving a layer of transparent epidermis. After the 3rd instar, they eat the holes or nicks in the leaves. In severe cases, all the leaves are eaten up, leaving thick veins and petioles. .
Prevention method
Remove stubble and old leaves in time to reduce the breeding grounds of Pieris rapae.
Try to choose to control the young larvae stage. At this time, the population density is small, the damage is small, and the insect resistance is relatively weak.
During the prevention and control, it is necessary to grasp the control period. In the egg period and the early stage of the larvae hatching, spray the pesticide evenly on both sides of the leaves of the plant in the morning or evening according to the habits of Pieris rapae.
When the cabbage caterpillar is found, it can be sprayed with 2.5% Lambda-cyhalothrin EC 1000 times liquid for spray control, spraying once every 7 days, generally spraying 2-3 times is enough.
Pests of Echinacea: Aphids
Symptom
Aphids are the fastest reproductive insects, which can reproduce 10-30 generations a year. Female aphids can reproduce after they are born, and reproduction does not require males.
Aphids use a needle with a suction nozzle to pierce the epidermis of the plant and suck the sap from the tender leaves of the plant, causing the plant to grow slowly, and the secretion of the aphid will attract ants.
Prevention method
If the quantity is small, kill it manually, and spray 1500 times of 80% dichlorvos EC at the initial stage.
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