Persian buttercup sowing and propagation time and the special-effect pesticide for leafminer flies
Persian buttercup (Ranunculus asiaticus) is a plant that many people enjoy growing, and its flowers are truly beautiful. What is the sowing and propagation time for Persian buttercup? What special-effect pesticide should be used for leafminer flies:
Persian buttercup sowing and propagation time:
The normal sowing period for Persian buttercup is from mid-October to mid-November. Soak the Persian buttercup seeds in water for one day, then remove them, wrap them in gauze, and place them in a constant-temperature chamber to germinate. The suitable temperature is around 15°C. Take them out every morning and evening and rinse them once with clean water, then drain off the water so the seeds remain moist.
About 7 days after germination begins, some seeds start to sprout, and at this point they can be sown immediately.
After the germinating seeds are properly dried, mix them evenly with an appropriate amount of yellow sand, then sow them in flower pots or in the yard. For the covering soil, mix peat and perlite at a ratio of 1:1, and a thickness of 0.2-0.3 cm is suitable.
For Persian buttercup sowing and propagation, choose soil with good drainage, and carry it out in an environment with good ventilation and light transmission. Strengthen the protection of the sowing environment to avoid the threat of wind, rain and other weather disasters as well as pests and diseases.
After sowing, it usually takes one week for seedlings to emerge. At this time, keep the soil moist and replenish water in time to ensure smooth seedling emergence.
What special-effect pesticide should be used for leafminer flies:
It occurs fairly commonly, and the main period of damage is from February to April. The larvae bore into and feed on the tissues inside the leaves, forming snake-like white mines, and their excrement is deposited in the mines as black continuous thread-like lines. Adults laying eggs and feeding cause round wounds. This destroys the chloroplasts in the plant tissues, reduces photosynthesis, and also provides a pathway and site for pathogen invasion and breeding. The activity of the insects also spreads many viral diseases, bringing disastrous effects to the cultivation of Persian buttercup.
Control method: Integrated control must be adopted, with prevention as the priority, and comprehensive monitoring of pest occurrence. For control, yellow sticky boards for trapping and killing and chemical pesticides for killing can be used. In the early stage of occurrence or about 20 days after the peak of emerged female flies, promptly alternate and rotate the use of 75% cyromazine wettable powder at 5000 times dilution, 4.5% beta-cypermethrin emulsifiable concentrate at 1000 times dilution, 50% chlorpyrifos at 2000 times dilution, and 25% leafminer-killing emulsifiable concentrate at 1500 times dilution, spraying once every 10 days for 3 consecutive sprays.
That is all for the introduction to Persian buttercup. Do you feel the urge to grow one?
How to propagate Persian buttercup, propagation methods of Persian buttercup / sowing propagation / division propagation
Persian buttercup is a fairly common flowering plant in people's lives, with high ornamental value, and many people across our country grow it. However, as more people grow it, questions about its propagation have also drawn concern. How to propagate Persian buttercup? What are the propagation methods of Persian buttercup? Below, the editor will guide everyone through an understanding of it.
1. How to propagate Persian buttercup, sowing/division
When it comes to how to propagate Persian buttercup, it is mainly divided into two methods: sowing propagation and cutting propagation. As long as the operations are done properly, both propagation methods have very high survival rates. As for how to specifically carry out these two propagation methods, there is a detailed introduction below. Let us take a look.
2. Propagation methods of Persian buttercup
Sowing propagation
1. Substrate selection, good drainage
Before carrying out sowing propagation of Persian buttercup, we must first choose the substrate, which is a fairly important step. Only by letting it grow on a suitable substrate can it grow better. Generally, we should best choose loose, fertile, well-drained neutral or slightly alkaline soil as the substrate.
2. Seed collection, collect in June
Generally, by June each year, when the aboveground divided branches and leaves of Persian buttercup turn yellow and dry and the aggregate fruit turns from green to yellow, that is when the seeds are ripe. At this time, we can pick them, dry them in the sun, put them into paper bags, and store them in a ventilated, dry place until autumn for sowing.
3. Low-temperature germination, 10°C-15°C
The sowing time of Persian buttercup is generally in spring, but because temperatures differ, its germination time also varies. Generally, it is best to control the temperature between 10°C and 15°C for the fastest germination, usually germinating in about 20 days, while at temperatures above 20°C it will not germinate.
4. Sowing method, apply base fertilizer before sowing
Among the propagation methods of Persian buttercup, sowing propagation is relatively simple. First, we need to add an appropriate amount of base fertilizer to the soil, then scatter the pre-germinated seeds onto the potting soil, cover them with about 1-2 cm of soil, and then water. When watering, be careful to water thoroughly at once, then place them in semi-shade and wait for them to sprout before carrying out normal care.
Division propagation
Division propagation of Persian buttercup is generally carried out in autumn from September to October. With this method, we can do it together with repotting. When dividing, we should lift the overly dense mother plant out of the potting soil, then cut it into several clumps, pot them separately, and plant them as we divide them, making survival very easy. Generally, after potting, it is already a complete flowering plant.
What is the flower language of Persian buttercup and what special-effect pesticide should be used for southern blight
Persian buttercup is a plant, and its flowers are super beautiful. What is the flower language of Persian buttercup? What special-effect pesticide should be used for southern blight:
The flower language of Persian buttercup:
Flower language: popularity.
In the 13th century AD, the Franciscan friar——Saint Anthony, whenever he preached Christian doctrine and the gospel, always attracted large numbers of believers to come and listen, and he became famous because of this. The flower language of Persian buttercup is “popularity”. The blessed birthday person has an easygoing, talkative personality and is widely admired, loved and supported by those around them. However, precisely because they make friends widely, they often find it hard to form deep friendships with others, and this is true even with friends of the opposite sex. Therefore, it is important to remember that although having many friends is certainly good, having a close confidant with whom one can go deep is even more important.
What special-effect pesticide should be used for southern blight:
Southern blight is caused by infection by a fungus with small sclerotia, and it mainly attacks the stem base of the plant. In the early stage of the disease, water-soaked, light brown, irregular lesions appear at the stem base, after which white silky mycelium is produced on the diseased area and gradually tangles into rapeseed-like sclerotia. They are initially white, then yellow-brown to brown. When the disease is severe, the stem base rots and becomes necrotic, the aboveground part separates from the underground part, water cannot rise, the branches and leaves wither, and the plant dies. The pathogen overwinters in the soil or on diseased residues as sclerotia, and the sclerotia can survive in the soil for several years. Under suitable conditions, the sclerotia germinate into mycelium and spread from diseased plants to healthy plants in the soil. At the same time, after the ascospores mature, they spread by wind and rain, and after contacting the host they invade and cause damage. A temperature of around 20°C and an air relative humidity above 85% favor the spread of the pathogen. When planting is too dense, ventilation and light transmission conditions are poor, there is continuous cropping, or the soil is clayey or poorly drained, the disease will worsen.
Control methods: 1. Strengthen cultivation management, pay attention to ventilation and light transmission, appropriately control watering, and avoid soil that is too wet. The production site or planting soil should be rotated and disinfected. 2. Check in time, and immediately pull out and burn diseased plants when found. At the same time, dig out the soil around the diseased plants, and sprinkle 40% quintozene around the diseased holes or spray and drench the rhizosphere soil with 50% carbendazim wettable powder at 800 times dilution to control the development of the disease. 3. In the early stage of the disease, spray and drench the stem base of the plant and the surrounding soil with 75% chlorothalonil wettable powder at 500 times dilution and 5% validamycin at 1000 times dilution, which can alleviate the disease.
That is all for the introduction to the flower language of Persian buttercup. Pay attention to the control methods for southern blight.