What to do about planting flowers and trees withering

What if the peanut seedlings are rotten?

How do peanuts rot from emergence to harvest?

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A: after the emergence of peanuts, it was found that root wilt was caused by two causes: nematode, bacterial wilt and chalk syndrome.

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Peanut nematode disease.

Symptoms: first invade from the root tip, causing the main root to expand into a spindle shape, when the upper ground is not obvious. Then, before the early flowering stage, irregular rice worms are formed at both ends of the lateral roots, and many small fibrous roots grow on the insects. These fibrous roots can form insects after the nematode invades again and grow hair on the insects. After repeated infection, the whole root system becomes a group of fibrous roots. In the middle and later stage of the disease, the stems and leaves of the aboveground parts are yellowish brown, the plants are short yellow, the leaves are thin, and the bottom leaves fall off. In severe cases, the whole plant withered on the pods, with few, sometimes irregular brown insects. The pathogen is root nematode. The female is a long pear-shaped, visible to the naked eye, with milky tiny particles. Males are similar to aphids, small and invisible to the naked eye.

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Control method. 1 strict implementation of quarantine measures. 2 drying pods to reduce moisture to less than 8% into storage can kill nematodes in pods and reduce long-distance transmission. (3) reasonable crop rotation, crop rotation for 23 years has obvious effect, and sweet potato rotation is also effective. (4) take out the weed host, remove the patient and reduce the pathogen. 5 chemical control, chlorine (6 ml per square foot) fumigation of soil, or 3% phorate mixture, 3 to 4 kg per mu, sprinkled two weeks before sowing. One pound of phosphorus can be applied to each plant with sporadic disease during an attack.

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Bacterial wilt and chalk syndrome.

Symptoms: 1 bacterial withering, sudden wilting at flowering, a good branch of the trunk, the upper part. At the beginning of the day, the weather is depressed, the night recovers, the leaves delay in the morning, the leaves close in the afternoon, and the leaves gradually die. After death, the leaves are still turquoise. From mid-June to October, two white rickets began to become part of the film and later expanded into mass death. If the disease is early, peanut particles will not be collected. (3) the occurrence of peanut pods was the most severe when it rotted. At the beginning of the disease, on sunny days, the leaves wither at noon and return to normal in the morning and evening. They all died a few days later. Dead plants are easily pulled up, the cortex of the stems and roots are rotten and brown, the lateral roots are few, and the main roots contract into the shape of a rat tail. The stem base produces a pink mold.

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Control method. 1 reasonable rotation of sweet potato, wheat, peanut, or rotation of flood and drought. Tilt the smoked soil in the depths of the field, collect grass and fertilizer, ignite the smoked soil, disinfect and compost it. (3) strengthen field management, control underground pests and reduce root damage during cultivation. (4) use resistant varieties. (5) Chemical control, about 10 kg of tea powder per mu and 50 kg of lime as base fertilizer, which can be maintained for 40 days after application. Early detection of central disease strains has a significant effect on the application of lime powder. In the early stages of the disease, the use of 3% limewater is effective. Carbendazim spray can also be used.

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The above is my opinion. If there are any mistakes, please leave your valuable comments in the message area and actively participate in the comments. We invite you to pay attention to agriculture, rural areas and farmers, the rising sun, agriculture, rural areas and farmers! ]

Recommended for potted flowers, how to better transplant?

We have learned about biology, and grafting is a technique. In the research, I think the grafting technology is very high-end, it is difficult to do well. But in fact, as long as the grafting technology is mastered, it is still very simple. Study hard and your flowers and trees can be grafted by yourself.

I don't know if anyone has ever seen a gardener grafting. Are you interested, too? Let the editor talk about a little knowledge about grafting. The good step is to choose the type of grafted fruit. You can't blindly transplant two kinds of plants together. Wild plants are a better choice, because wild plants are very strong, and wild plants live in nature because they are. It is better to use the same tree species as your own to transplant your own plants. It is better to choose young trees as rootstocks. The growth potential of young trees is relatively strong. Like a newborn baby, life is more tenacious and easier to heal. Grafting is important for selecting plants that match each other.

This season is also important because the weather and climate are different from season to season. Spring is the season of spring in full bloom. If you want to graft flowers and trees at home, it is better to have spring. Spring flowers are the better time. After all, it is time for most plants to rejuvenate and bear fruit.

Many grafting details need to be done well, and everything like tampons should be handled carefully. For young and middle-aged mother trees with exuberant growth and no diseases and insect pests, it is better to choose vigorous branches for cuttings. The spikes are easy to survive and are very robust after harvest, and the newly growing spikes are not easy to produce.

The purpose of grafting is to match two kinds of plants and find each other's advantages to make up for their shortcomings. Therefore, in order to grow better, we must do a good job of grafting technology, otherwise the survival rate of plants will be reduced, can not achieve the purpose of grafting.

The most important thing to protect plants is daily maintenance. After grafting, we need to pay more attention to watering every day. Choose the right plant, in the right season, the use of skilled grafting plants can achieve the effect you want. People who like flowers and plants must know the grafting of plants. Grafting technology is actually a technology that is slowly developing. The application of grafting technology is more and more.

This is a sign of technological progress. Through grafting, we can eat more delicious fruit, and many plants and flowers have a higher survival rate. Therefore, in order to achieve the goal, we must learn the grafting technology well, otherwise it may not only achieve the desired effect, but also damage the original plant.

Time: 2019-05-11 Click: