The reason why some of the potato leaves wilted, what is the reason for the curling and drying of po

Hello, probably a viral disease.

Symptoms This disease often manifests three symptom types in the field: mosaic and leaf, necrosis, and leaf curling. Mosaic type means that the color of the leaves is uneven, showing alternating shades of flowers or mottled, shrunken and dwarfed when severe, and sometimes showing bright veins. The necrotic type refers to the appearance of brown necrotic spots on leaves, leaf veins, petioles, branches and stems, which turn into necrotic spots in the later stage, and the leaves die or wilt and fall off in severe cases.

The leaf curl type means that the leaf is rolled inward from the edge along the main vein, and then the leaf becomes hard and brittle, and in severe cases, the leaf curl is cylindrical. Compound infection in the field often causes necrosis of multiple french fries spots.

Prevention and control methods. 1) Establish a non-toxic seed potato breeding base, and use stem tip tissue to detoxify seed potatoes to ensure the cultivation of non-toxic seed potatoes.

2) Choose excellent varieties with disease resistance. You can choose Zhongshu No. 2, No. 3, Dongnong 304, Eshu No. 1, Lu Potato No. 2, Jinyin No. 1, Kexin No. 1, Zhengshu No. 4, Wumeng 601 and Pulsatilla, Fengshou Bai, Epidemic Bujia, Guanghong No. 2, etc.

3) Strengthen cultivation and disease prevention. Apply enough organic base fertilizer, and increase the application of phosphorus and potassium fertilizer for sea meals. Fine land preparation, high ridge or high ridge cultivation. During the growing period, timely cultivation and weeding and soil cultivation, timely watering, and strict prevention of flood irrigation.

4) Thorough control of aphids before and after emergence. If necessary, spray 1000 times of phytolingl emulsion or 500 times of 20% virus A wettable powder at the beginning of the disease.

Potato leaves curl and dry out is called potato leaf curling disease, which is a viral disease and is difficult to prevent alone!

If there is a problem with the root, use fungicide - R. solanacearum rick, spray and irrigate the roots, this fungicide can also be used from the next seed, seedling stage, budding stage, and flowering one-third to seize these key opportunities to use medicine, I recommend you a learning platform.

Potato leaves are curled and turned into tanks, this is caused by dry weather, and water needs to be watered when there is a lack of water.

Burnt the roots? Do you use raw manure as fertilizer or compound fertilizer? This can also occur when there is a high level of moisture and high temperatures.

It is recommended that you open the curled leaves to see if there are no insects and pupae, if the leaves are simply curled, it is likely to be caused by lack of water.

If there are worms, spray them.

Basic symptoms of anthrax.

After the potato was infected, the leaf color became pale in the early stage, the top leaf was slightly reversed, and then the whole plant wilted, browned and died. The cortical tissue of the underground root infection from the ground to the potato tuber decays and is easy to peel off, the lateral roots are partially browned, the mustache is very necrotic, and the diseased plant is easy to pull out. There are many small gray spots on the stem infection, and many black granular sclerotia grow in the cavity at the base of the stem.

Conditions for the onset of anthrax.

Mycelium overwinters mainly in seeds or diseased residues, and produces conidia in the following spring, which spreads by rain splashes. The spores germinate to produce germination tubes, which are either wounded or directly invaded. In the later stage of growth, the pink sticky material produced on the lesions contains a large number of conidia, which are transmitted to the healthy potatoes through rainwater splashing for re-infection.

High temperature and high humidity are severe.

Anthrax prevention and control methods.

Remove sick and disabled bodies in a timely manner. (2) Avoid high temperature and high humidity conditions. (3) At the beginning of the disease, spray 500 times of 36% thiophanate-methyl suspension or 500 times of 50% polysulfur suspension, 500 times of 50% thiophanate-methyl wettable powder, 800 times of 50% carbendazim wettable powder, 800 times of 80% anthrax Fumei wettable powder, 1000 times of 70% thiophanate-methyl wettable powder and 75% chlorothalonil wettable powder l000 times, and the control effect is better than that of the above-mentioned fungicides alone.

Potatoes are potatoes, which are a very widely cultivated crop in our country. What's going on with potato leaf wilting? There are many situations in this situation, and it is necessary to analyze the specific problems on a case-by-case basis.

Leaf blight caused by leaf blight.

The main damage of this disease is potato leaves. At the beginning of the infection, the leaf begins at the tip of the leaf and the edge of the leaf, gradually expands from greenish-brown spots to large reddish-brown dead spots, the leaves yellowed and curled, and finally the whole leaf is scorched.

Leaf wilt caused by anthracnose.

The symptoms of infected potatoes reflected on the leaves are: at the beginning, the leaf color of the leaves is light, and the top leaves are slightly curled, if not controlled in time, it will cause the whole plant to wilt, and eventually turn brown and die.

Leaf wilt due to Verticillium wilt.

This is a more serious soil-borne disease in the growth process of potatoes, after infection, the symptoms on the leaves are: the leaves gradually yellowed from the leaf veins inward, and then developed into yellow-brown, the leaves are wilted and dry, and the plants are weak and withered.

Leaf wilt caused by early blight.

The symptoms of early blight in potatoes are as follows: after infection, the leaves appear round black-brown lesions of about three or four centimeters, with concentric wheel patterns. When the leaves are wet, a layer of black mold appears on the lesions.

After that, the lesions expand, the whole leaf yellows, dries up and falls off, and finally the whole plant withers and yellows.

Leaf wilt due to late blight.

Late blight begins with greenish-brown spots like water stains at the tips or edges of the leaves, with faint green halos around the spots. When the leaves are wet, a white mold layer will also be formed on the spots. After that, the lesions gradually increase, turn brown and wither, and crack brittle when pinched.

Eventually, the entire leaf withers and withers and becomes scorched.

Leaf wilt caused by potassium deficiency.

If there is a lack of potassium in the growth process of potatoes, during the formation period of its tuber, there will be symptoms of atrophy of the leaf tips and leaf margins, and gradually yellowing, and in severe cases, it will be scorched and broken.

The above is the phenomenon of potato leaf wilt caused by different diseases, in addition to the different symptoms of leaf wilt, some diseases will also infect potato tubers and other parts, in the prevention and control should be combined with various symptoms to distinguish, so as to achieve symptomatic treatment.

Looking at the situation like burning roots and seedlings, review whether there is too much fertilizer, at this time proper watering, and use some rooting fertilizer, the root system is good, and the plant will be prosperous.

The leaves of the potatoes are curled and dry, which is a disease of leaf curls and can be sprayed with some medicine.

Potato leaves curl and dry out without fertilizer and water.

Apply compound fertilizer, water a little, and you're good to go.

Summary. Hello dear, the reason for the curling of potato leaves: generally because of the attack of leaf rollers, you can open the potato leaves to observe whether there are leaf rollers or its pupae, if it is not suffering from insect infestation, it may be a lack of water due to insufficient watering.

The effect can be achieved by using chemical control to kill pests! Pesticides can be sprayed with urine, cypermethrin, pyrethrin and phosphine!

Hello, our potato seedlings are more than 100 acres of land are like this.

Hello dear, the reason for the curling of potato leaves: generally because of the invasion of the wide leaf worm next to the curl, you can open the potato leaf to observe whether there is a leaf curl or its pupae, if it is not suffering from insect infestation, it may be a lack of water caused by insufficient watering. The effect can be achieved by using chemical control to kill pests!

Agents can be used to extinguish urine, cypermethrin, pyrethrin and phosphine, etc.

Look at the worms?

Aphids and the like.

The water is definitely sufficient, and there are no insect infestations on the leaves.

Pests can be sprayed.

If there is a virus scattered wandering disease, the wrinkled curl on the leaves after the seedlings emerge belongs to the specific manifestations of the virus disease, and there is no way to deal with the extinct potatoes with poison, and the potato yield will be very low!

That's viral.

There is no way. Is there no corresponding drug? No.

Summary. Dear We are happy to answer your questions, and the following are the answers to your queries; Causes of potato plant cracking: There are many reasons for potato plant cracking, mainly including water supply, variety selection, soil fertility and virus damage.

In addition, potato tuber cracking is also related to factors such as soil dryness, influencing factors brought by farmers' management, and underground pest damage. Preventive measures include increasing the application of organic fertilizer, timely watering, avoiding soil drought, and timely control of pests and diseases.

Dear We are happy to answer your questions, and the following are the answers to your queries; There are many reasons for the cracking of potato plants, including water supply, variety selection, soil fertility and virus damage. In addition, the pure resistance of potatoes to tuber cracking is also related to factors such as soil dryness, influencing factors brought by farmers' management, and underground pest damage.

Preventive measures include increasing the application of organic fertilizer, timely watering, avoiding soil drought, and timely control of pests and diseases.

According to the method I provided above, please rule it out and see if there is an interim reason.

Summary. Hello dear, need to be prevented and ** in time. Here are some prevention and methods:

1.Transplanting healthy seed potatoes: When planting potatoes, it is necessary to choose healthy seed potatoes and disinfect them before transplanting to prevent the spread of pathogenic bacteria.

2.Control moisture: The environment in which potatoes are grown should be kept dry and ventilated, and the surface area of the soil should be reduced to avoid flowing to the roots, leaves and stems of potatoes and causing the growth of pathogens.

Ok thanks.

Hello dear, you need to hail brother in time for prevention and **. Here are some prevention and methods:1

Transplanting healthy seed residue potatoes: When planting potatoes, it is necessary to choose healthy seed potatoes and disinfect them before transplantation to prevent the spread of pathogenic bacteria. 2.

Control moisture: The environment in which potatoes grow should be kept dry and ventilated, and the surface area of the soil should be reduced to avoid flowing to the roots, leaves and stems of potatoes and causing the growth of pathogens.

3.Spraying: When dark-brown lesions are found on potato leaves or stems, sprays can be carried out with a suitable agent**.

4.Cutting off the damaged part: When black-brown high-color lesions appear on potato leaves, it is necessary to cut off the diseased leaves in time and incinerate them to prevent the spread of C. disease, and at the same time, pesticide spraying can be used to prevent the occurrence of the disease and control the development of the disease.

What to spray?

It's almost budding, what medicine is best?

Use environmentally friendly and efficient pesticides to search and distribute zinc methylcarbendazim suspension or zinc oxide fenpurni wettable powder, both of which have the characteristics of broad-spectrum, bactericidal effect with strong fibrillation and high safety, which can effectively prevent and control potato black rot, and can also prevent and prevent other common potato diseases.

At the same time of using the drug, attention should also be paid to pruning the damaged part in time, and keeping the soil well ventilated, dry and resistant to drying, so as to promote the recovery of potato plants. Please note that access to and use of pharmaceuticals is subject to relevant national regulations and requirements.

This is due to the fact that the quality of the soil is not particularly good, and also because the condition of the soil is not very good, or because the quality of the potatoes is not particularly good, or because the potatoes are not growing particularly well because of some diseases. At noon, you should observe this situation in advance, and you should also experience the prevention of this disease, and you should disinfect the patients and the seeds of the potatoes.

It may be caused by viruses, or it may be caused by improper management, and it is directly related to pests and diseases.

This is due to poor management. When planting, you need to take care not to cut the potatoes too big, and not in a particularly humid environment, and there should be plenty of sunlight.