How to prevent and control cucumber wilt grown in rural areas? What s the best way to do it?

First of all, the soil should be ploughed and dried, so that it can be effectively sterilized, and then some pesticides can be sprayed for sterilization, and it is not easy to have rattan disease when planted later.

It is necessary to carry out reasonable ventilation, and timely watering, and regular spraying of pesticides, so as to prevent pests and diseases in advance.

It is necessary to choose a reasonable soil, and pay attention to the treatment of seeds, and at the same time choose a relatively strong disease resistance, we should also pay attention to the ratio of fertilizer.

Cultivated in the countrysideHow to prevent cucumber wilt?

Cucumber wilt disease is a disease that melon crops are prone to, generally occurs gradually after cucumber flowering, when the air humidity is too large, the temperature is high and even the day is cloudy and rainy, the disease develops very rapidly, once the disease occurs, can not be prevented and controlled in time, the disease will develop aggravated, resulting in the growth of cucumber seedlings is hindered, the plant wilts, until death, it can be said that cucumber wilt is a devastating disease, it should be prevented and difficult to treat, when the disease is serious, it will make a large number of cucumber plants die, so that the cucumber yield is seriously reduced, so recognize its symptoms and pathogenesis, It is of great help to prevent and control in advance, reduce the disease, and minimize the disease of cucumber wilt.

First, cucumber wilt symptoms:

Cucumber wilt disease is manifested on the leaves and branches, part of the leaves of the plant at the beginning of the disease wilt and hang low at noon, but return to normal in the morning and evening, the initial symptoms are very similar to the lack of water, and slowly affect the whole cucumber plant, the root of the diseased plant has moldy germs attached, and the base of the stem is concave and shrinking, unable to supply nutrients, and finally leads to the death of the whole plant. The symptoms of wilt and blight and cataplexy are very similar, the difference is that the underground roots of blight rot first, and the lesions at the base of the stem of cataplexy are soaked in water.

Second, the incidence of Fusarium wilt:

Cucumber wilt disease is a fungal disease caused by Fusarium infesarium, mainly caused by seeds and organic fertilizer with bacteria or residual bacteria in the soil, in the environment of high humidity and low temperature, the fungus will invade through the crack or root wound, harm the plant, make the aboveground part wilt, and finally the plant dies when the disease develops aggravated.

Third, prevention and control measures:

When choosing planting, try to avoid continuous cropping, and disinfect the soil before transplanting, such as spraying with 1000 times of 50% carbendazim wettable powder, or mixing 200 grams of it and 30 kg of fine sandy soil, applying it to the planting ditch, and selecting disease-resistant varieties, and disinfecting the seeds and seedbed before raising seedlings.

Before the onset of the disease, it can be prevented by spraying 50% carbendazim 800 1000 times, or 70% dixone 1000 1500 times solution, so as to achieve early prevention and early treatment.

Cucumber should be treated in time after being damaged by herbicides, if the degree of pesticide damage is low at the beginning, you can quickly spray the foliage of the damaged crop with a large amount of water, and you can mix an appropriate amount of baking soda solution or lime water in the water. Rapid application of fast-acting fertilizers such as urea is then followed to increase nutrients and promote recovery. After that, it is appropriate to spray drugs that alleviate the damage, such as drugs containing brassinin, indoleacetic acid, sodium dinitrophenol, chlorpyramide and other ingredients.

I hope the above can be helpful to you and I wish you a happy life.

Cucumber pesticide damage is generally caused by the improper use of pesticides by growers, or the use of wrong pesticides to prevent and control, resulting in abnormal growth of cucumbers, or some physiological disorders. After the cucumber has pesticide damage and slows down the growth, you can use 30-50 mg per kilogram of gibberellin, and then dilute each bucket of water (15-20 kg) with 150-200 grams of sugar, and spray the plant. If there is severe inhibition of growth, smear the growth point with gibberellin stock solution.

Because cucumbers are very delicate, and when you go to plant, it is also easy to be bitten by insects, in fact, you can water more next to it, and then fertilize it properly, and then the sun can be full, so that it can be remedied.

Cucumber is one of the most common vegetables on the people's table, which can be stir-fried or cold, both as a vegetable and as a fruit, not only has a unique taste, but also is rich in nutrition. Cucumbers are crisp and delicious, nutritious, and are loved by people regardless of whether they are eaten raw or cooked. Cucumber is a climbing plant of Cucurbitaceae, which is prone to some pests and diseases in the planting process, resulting in reduced yield and quality of cucumber, and damaged economic benefits.

Difenoconazole ether strobin suspension 1500 times, 80% Dasheng wettable powder 600 times, 43% bacteric suspension 3000 times, 2% rice water 400 times, 4000 times 4000 times Fuxing emulsifiable concentrate.

The lesions are from small to large, connected into irregular yellow-brown lesions, when wet, the mold layer grows on the back of the leaves, the greater the temperature, the thicker the mold layer, and the mold layer disappears when dry. Finally, it is dry and brittle. For downy mildew, horn spot, powdery mildew, etc. of cucumbers, it is necessary to use drugs to prevent and control them in the early stage of the disease, and the main drugs that can be used are copper sulfate preparations, chlorothalonil, zebze, benzomyl, clomycolin, polysulfide suspension, methyl tobuzin, etc.

In the process of cucumber planting, there are five kinds of most common insect pests, of which there are three kinds of stinging and sucking pests, namely thrips, aphids, whiteflies, and one is green insects such as melon silk borer and noctuidae, and the last leaf miner fly! Among them, thrips and tabacinism are the most harmful.

Deficiency is a nutrient element necessary for the growth and development of cucumbers that are not supplied by fertilizer and the soil is deficient, causing physiological obstacles, and can only be supplemented by fertilization as needed. Pesticide damage is a physiological obstacle caused by the allergy of cucumber due to the nature, concentration, temperature and other relationships of pesticides and fertilizers. Chemical control technology for major pests of cucumber.

On the basis of doing a good job in field management, coordinate the application of various measures, and if necessary, select high-efficiency, low-toxicity and low-residue pesticide spray control in time at the young nymph stage of pests. However, its harm is not less than or even heavier than fungal diseases, and it is more difficult to prevent and control than fungal diseases, and the following comprehensive control measures can be taken in production.

Cucumber diseases mainly include brown spot, downy mildew, bacterial horn spot, leaf blight, anthracnose, cataplexy, blight, gray mold, target spot, powdery mildew and other diseases, the main reason for the emergence of diseases is that with the warmer weather, the temperature gradually rises, improper management makes it appear high temperature and high humidity environment and causes, these cucumber diseases are mostly mixed, disease prevention and control must pay attention to the compound of the agent and the flexible grasp of the dosage of different disease periods, and at the same time can regulate crop growth, supplement nutrition, alleviate diseases.

1. Cucumber bacterial horn spot disease. The disease is bacterial. It mainly overwinters through seeds or diseased residues, and spreads infection through wind, rain and water currents.

2. Cucumber deformed melon. The main reason is that the environmental conditions are not suitable during the flowering period, the temperature is too high or too low, the humidity is high, and the light is weak, which will affect the normal pollination and fertilization of cucumbers, and the fruits will locally produce seeds and swell, so that the melon strips are deformed. 3. Cucumber wilt disease.

It can occur throughout the growth period, and the most common occurrence occurs in the flowering and melon setting stage.

The symptoms mainly harm the leaves, the seedlings are susceptible, and the round bright yellow lesions appear on the front of the cotyledons, which reach a peak at the full melon stage. The leaves are initially water-stained, and then expanded and connected into large lesions, and in severe cases, the diseased leaves are curled and yellow-brown and dry, and the dorsal lesions of the leaves grow dense purple-gray to purple-black mold.

With the increase in cucumber planting area, the problem of cucumber mortality is becoming more and more serious, causing huge losses to farmers. The following will guide you through the causes of cucumber plant mortality and preventive measures, hopefully to help farmers better deal with the problem. Soil permeability is a necessary condition for the growth of cucumber roots, and many farmers overwater them during summer cultivation, and the lack of oxygen in the soil prevents the roots from breathing normally, which in turn leads to the degumming of dead trees, especially in greenhouse soils.

When fertilizer is used for farmyard manure that is not completely decomposed, it releases a lot of heat when it decomposes, causing root burns and tree death. Or a large amount of chemical fertilizer, especially at the seedling stage, where the root system has not yet opened, and the application of heavy fertilizer can lead to the death of the root system.

<> when applying completely decomposed fertilizers, farmhouse fertilizers and organic fertilizers must be fully fermented before applying decomposition, and attention should be paid to the concentration when applying fertilizers, which can be diluted with water, when using the flushing method. It is appropriate to cause cucumber abnormalities in continuous rainy weather or in sudden sunny weather after rain, and if it is too long, it can cause the trees to die. Degummed roots attached to the seedling stage can also cause dead trees, and when the seedbed or planting is overwatered or the soil moisture is high, the root system will degum and rot, causing the ground to partially die until the dead tree.

Yields will be good, and many farmers are often ready to plant because of years of high winter temperatures, and they cannot defend in time at low temperatures, causing trees to freeze to death.

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It may be caused by lack of nutrients, lack of pests and diseases, lack of water or fertilizer, long sunshine hours or high temperature, or blight or vine blight; It is necessary to prescribe the right medicine, and should also water and fertilize in time, to ensure the time of light and heat, the temperature of planting should be controlled at about 20 degrees. The planting density should not be too dense.

It may be because of the sudden poor air permeability, the sudden too rigid, the lack of fertilizer, the light time is very short, the temperature is relatively low, and the nutrition can not keep up, which will lead to the death of cucumbers. The soil should be loosened frequently, and the pesticide should be watered more after the end, and the temperature of the increased light should be kept above 20 degrees.

Mainly because of insufficient light, or poor soil permeability, there is no reasonable fertilization, so it will lead to the death of cucumbers. Attention should be paid to the incidence of cucumbers, ensuring adequate exposure to sunlight, the use of chemicals, or the proper management of fertilizers, so that this can be prevented.

Cucumber wilt disease is a disease of cucumbers, mostly after flowering and fruiting, the infested plant initially shows that part of the leaves or one side of the plant leaves wilt and droop at noon, like lack of water, sooner or later can be recovered, and then the wilted leaves continue to increase, gradually spread throughout the whole plant, morning and evening can not be recovered, and soon die.

Precautionary measures:1Disease-free new soil seedlings are selected, and nutrient bowls or plastic sleeves are used to divide seedlings.

2.To strengthen field management and improve plant disease resistance, reasonable fertilization (especially nitrogen fertilizer) should be applied, light transmittance intensity should be improved, ditching and drainage should be made in time, and field temperature should be reduced

Cucumber leaves wilt, if the number is small, you need to control watering to avoid water accumulation in the roots. If it occurs in a large area, it should belong to cucumber heavy soil facsimile fungus disease, cucumber wilt disease. Control methods: reasonable crop rotation, and non-melon crops, the implementation of more than 5 years of crop rotation.

For general cucumber wilt disease, there is no specific drug at present; The germ spreads through root wounds through seeds, soil, fertilizers, irrigation water, insects, farm tools, etc. In general, the more times the stubble is repeated, the more severe the disease. High soil humidity, root waterlogging, and high temperature are conducive to the occurrence of diseases, and the occurrence of diseases is serious in plots with excessive nitrogen fertilizer, acidity, underground pests and root-knot nematodes.