Garlic soft rot should be prevented and treated as soon as possible, what medicine is used for garli

For example, the commonly used fungicides for garlic can kill 3000, chlorothalonil, etherstrobin, and carbendazim.

Prochloraz, tebuconazole.

and so on. I will talk about the common pests and diseases of garlic and the use of garlic blight, it is recommended to use methyl manganese zinc, anker manganese zinc, frost urea manganese zinc or downy mildew and other agents in rotation to spray and control 2 3 times, once every 7 days, and pay attention to strengthening water and fertilizer management.

For purple spot disease, stem rot appears heavier plots, in the autumn planting time can choose methyl tobuzin or carbendazim or chlorothalonil according to the amount of seeds to sprinkle the seeds with an appropriate amount of water, and so on after spraying the seeds for 180 minutes, and so on after drying, sowing where fungicides are used to replace with biological fungicides, fungicides can only prevent disease in the germination period, there is no growth promotion effect on the growth of crops in the later stage, and it will also cause damage to the microbial environment of the soil, and long-term use will also cause soil compaction.

Prevention and control methods: When there are few diseased leaves in the early stage of the disease, remove the damaged leaves in time. Strengthen management, reasonable dense planting, and timely drainage after rain. Spray the following fungicides in a timely manner at the beginning of the disease: 10% Shigao 1000 times liquid, 43% Holik.

Difenoconazole can be used in the early stage of 2000 times liquid and 75% chlorothalonil 600 times solution.

Benzobromide nitrile, tebuconazole and other first-class fungicides, combined with dysen, pyraclostrobin.

and other protective agents are used together to treat diseases and prevent diseases at the same time.

It is recommended to use the Kham Gold Biological Clometrin, which can inactivate viral, bacterial and fungal pathogens, and has done a lot of tests with good results. Quicklime is applied to the ground before garlic sowing.

Sowing seeds after watering them with water can prevent the occurrence of garlic pests and diseases, and Bordeaux liquid can also be used after seedlings emerge.

Spray (100 pounds of copper sulfate for water.)

Half a catty, quicklime eight taels preparation), can inhibit the occurrence of garlic disease. Personally, I think it is best to use fungicides with a wide spectrum of fungicides, such as pyraclostrobin that we are all familiar with is a good drug, which has a good effect on fungi and bacterial diseases, and the effective period is better than that of general fungicides, and the dosage is small and economical.

Leaf spraying can be carried out with 400 times of 72% agricultural streptomycin soluble powder, or 500 800 times of 77% copper hydroxide wettable powder. Generally, spraying once every 7 10 days, spraying 2 or 3 times in a row, can have a better control effect.

Do a good job of seed treatment before planting garlic. Seed coating with seed weight suspension seed coating agent can kill garlic pathogenic bacteria; With 50% carbendazim, the seed dressing method is 100 grams of each agent mixed with 5 kg of water, 50-75 kg of seeds can be dressed, evenly mixed and dried and sown, the control effect of soft rot can reach about 95%.

If this problem occurs, some pesticides can be sprayed appropriately, such as agricultural streptomycin, and the moisture of the soil in the planting area can also be treated to achieve improvement.

The best fungicides for the control of garlic root rot are: 41% azole ether metrofen suspension seed coating, 52% imidaclopat pyrrhoid suspension seed coating, and 5% imidacloprid granules.

% azole ether methanthalyl suspension seed coating

Because garlic root rot is a kind of disease-transmitting disease, therefore, the prevention and control of garlic root rot should be based on prevention, the simplest and most effective method to prevent and control garlic root rot at present is the pesticide seed dressing, before garlic sowing, 150 450 ml of 41% azoleether methanthalyl suspension seed coating agent per mu, mixing 150 kg of garlic seeds, and evenly wrapping the seed coating agent on the seed surface, which can effectively prevent the invasion of pathogens.

% Imidaclo-pyrroid benzo-suspension seed coating

At the same time of preventing root rot, you can also choose 52% imidac, roro, benzometer suspension seed coating agent according to the ratio of 1:200 to the model drug species for seed dressing, which can effectively prevent and control root rot, and disperse the old can also prevent and control grubs, root maggots, leeks, ground tigers, etc., with an effective period of up to 80 days, which can ensure that the growth period is not attacked by underground pests.

% imidacloprid granules

Soil treatment can be carried out, before garlic sowing, combined with land preparation and fertilization, 3 5 kg of 5% imidacloprid granules per mu, mixed with 15 20 kg of commercial organic fertilizer, can not only prevent root rot, but also have a good control effect on underground pests such as grubs, leek maggots, root maggots, and small tigers, and the effective period can reach 80 120 days.

How does garlic lead rot develop? How to prevent garlic soft rot?

Garlic soft rot is a kind of bacterial disease, which is easy to invade garlic, occurs at the leaf edge or leaf midrib, forms yellow-white stripes along the midrib, and when the humidity is high, the diseased part is yellow-brown soft rot, and there is yellow bacterial liquid overflow.

The plant starts from the lower leaves, and gradually expands to the upper leaves, and only 2 or 3 leaves are slightly green in the later stage, and the whole plant is yellow and dies in the heavy cases.

So how does garlic soft rot occur? How to prevent garlic soft rot? Let's find out!

First, the incidence of garlic soft rot.

The pathogen mainly survives and overwinters on the diseased residues that have not yet decayed in the soil, and infects garlic when the conditions are suitable, causing garlic soft rot.

It can be relieved by itself in times of drought and has a significant impact on yield.

The pathogen likes high temperature and humid environment, and the suitable climatic conditions for the disease are 25 30, and the high soil water content and high field humidity are conducive to the disease.

The main incidence of bacterial soft rot of garlic in Zhejiang and the middle and lower reaches of the Yangtze River is in May and June.

The susceptible growth period of garlic bacterial soft rot is in the late growth stage of garlic.

Fields with continuous cropping, low-lying terrain, poor drainage, and over-growth are severely diseased; Rainy years are badly harmed.

Second, the prevention and control method of garlic soft rot.

1. Select excellent garlic species to detoxify, disease-resistant, disease-free garlic species.

2. It is advisable to choose a flat terrain, convenient drainage and irrigation, rich soil organic matter, strong fertilizer and water retention capacity, and the front stubble is non-onion and garlic soil and jujube soil to plant garlic.

And fine land preparation, so that the top and the bottom are solid, so as to block the source of the disease and avoid the disease conditions.

Methods to prevent and control garlic soft rot.

3. Apply high-quality organic fertilizer and cake fertilizer based on phosphorus and potassium fertilizer to promote the healthy growth of seedlings and improve the disease resistance of plants, so as to reduce the occurrence of physiological diseases.

4. Sow seeds in a timely manner, generally sowing seeds before early October, watering thoroughly after sowing, and covering with plastic film after watering, so as to improve ground temperature, moisture protection and drought prevention, and promote garlic seeds to germinate, emerge and grow as soon as possible.

5. Pharmaceutical prevention and control.

Garlic treatment: Before sowing, the seed coating is coated with a seed coating agent suspended at the right time of seed weight, which can kill the rock and purify the garlic pathogenic bacteria; It can also be used with 50% carbendazim or 77% killable or 77% donin wet powder dressing, the seed dressing method is 100 grams of each agent mixed with 5 kg of water, 50-75 kg of seeds can be dressed, evenly mixed and dried before sowing.

How to prevent garlic soft rot.

Soil treatment: This method is suitable for plots that have occurred soft rot, and can be sprayed with 77% Duoning wettable powder 600 times liquid, spraying 100 kg of liquid per mu, and sowing after spraying; Or use copper sulfate, quicklime, plant ash in 1:1:

Mix in a ratio of 100 and sprinkle in the garlic groove.

Pharmaceutical prevention and control: before or at the beginning of the disease, spray 50 kg per mu with 3000-4000 times of 72% agricultural streptomycin, or 750 times of 47% Garinone, or 1000 times of 50% dyscetonium, etc., spray once every 5-7 days, and continue to prevent and control 2-3 times depending on the condition.

Garlic soft rot is a common disease in garlic, and once infected, it will affect the production of garlic. Garlic soft rot can be caused by the presence of bacteria in the seeds or if there are some pathogens left in the soil where garlic is grown. It may also be because of the climate, if the climate temperature of garlic growth is too humid and high, it is very likely to induce garlic soft rot, in addition to some external factors, such as eating excessive nitrogen fertilizer or organic fertilizer, it may cause wounds on the roots of garlic.

If you want to prevent garlic osteomalacia, you must choose varieties with better disease resistance, and disinfect and sterilize the soil in advance during the planting process, so as to reduce the survival of germs in the soil and not easy to make garlic sick. In the process of planting garlic, we should also pay attention to good fertilization, reasonable fertilization, try to apply fully decomposed organic fertilizer, and also pay attention to drainage.

Once the root of garlic is infected by bacteria, it will be taken from the root to the leaves of garlic, which can let the garlic plants rot together, and at the same time will produce some fishy odor, which is very likely to lead to the growth and development of garlic disorders, which will have a serious impact on the yield of garlic, and will make the garlic spider die directly. Garlic planting usually starts in early October every year, and if the temperature is not well controlled during this period, it may cause garlic disease.

If you want to prevent the soft rot of garlic, you should pay attention to the selection of strong seedlings as much as possible in the planting process, so as to effectively prevent the soft rot of garlic, and at the same time in the planting process should also be reasonable selection. In the planting process, it is also necessary to strengthen the management of the field, once there is a disease, remove the harmful bacteria in time, reduce the number of bacteria in the soil, so that the garlic can grow better, and ensure the yield and quality of garlic.

Finally, the soft rot foci of garlic must be treated with soil and seeds, which is the most effective way.

1. Pharmaceutical prevention and control. (1) Garlic treatment. (2) Soil treatment. (3) Foliar sprays.

2. Strengthen cultivation management. (1) Select and select garlic species before sowing, and use detoxified, disease-resistant, disease-free garlic species as much as possible. (2) The stubble before selection is a non-onium and garlic vegetable plot, and the soil species with flat terrain, convenient drainage and irrigation, rich soil organic matter, and strong fertilizer and water retention ability should be selected for planting with friends.

When preparing the land, it should be deeply cultivated and raked, so that the top is loose and the bottom is solid. (3) Formula fertilization, full decay organic fertilizer, cake fertilizer, phosphorus and potassium fertilizer are applied to promote the healthy growth of seedlings, improve the disease resistance of green garlic seedlings, and reduce the occurrence of physiological diseases. (4) Sowing seeds at the right time.

The suitable sowing period is generally in early October, watering thoroughly after sowing, covering the mulch film after watering, improving ground temperature, moisture preservation, reducing the number of irrigation, and can effectively reduce the spread of pathogenic bacteria through rainwater, watering, etc.

Causes of disease: Garlic soft rot is a bacterial disease, low temperature and high humidity are conducive to the disease, and planting in low-lying and waterlogged plots will aggravate the disease. In particular, early sowing, poor drainage or over-growing fields are severely diseased, and can be relieved by themselves in drought.

Mainly because of the humidity, there is no reasonable control of the temperature, there is a disease problem, Zheng Pi quarrel led to bacterial infection, the phenomenon of water accumulation, only to shout will lead to the soft rot of garlic phenomenon. It can reasonably control the temperature, grasp or ensure the demand of the market, and prevent it through the use of pesticides.

It may be that the seeds carry the bacteria, or the soil may carry the bacteria of the ridge, or the cold resistance of the celery is relatively poor, or it may be caused by some diseases, or it may be caused by precipitation, or it may be caused by some external factors, or it may be caused by the sowing time too early. The soil can be sterilized and disinfected when planting, and the seeds should also be disinfected, and the frequency of watering should be controlled.

If the cause of bacterial infection is caused, it is necessary to pay attention to the condition of the soil, choose the right varieties for planting, pay attention to cleaning up weeds, and pay attention to water and fertilizer management.

Garlic soft rot is a bacterial disease and one of the main diseases on garlic, which has a great impact on yield and quality. Garlic soft rot is prone to occur under low temperature and high humidity conditions, especially in low-lying soils, poor drainage and high groundwater levels. Strengthen the field moisture prevention management, garlic yellow leaves may be caused by water shortage, too dry, you need to pay attention to the combination of timely water!

Those are the causes of physiological yellow leaves, mainly the harm of acidic soil, a large number of chemical fertilizers, such as compound fertilizer or potassium phosphate and other fertilizers, will acidify the soil, causing garlic to grow slowly, weak and lead to yellow leaves. If you don't pay attention to watering, the nutrient demand of the soil will also increase, and the nutrient of the mother garlic has been depleted, and it can only rely on the nutrients absorbed by the root system to maintain.

The tips of the affected garlic plants will turn purplish-red, and they will gradually develop along the veins towards the leaf sheath, and finally cause the leaves to lose their green color and turn yellow, and in the worst case, the whole leaf will dry up and die. Garlic plants are stunted and die of root development, and the plants will see obvious dwarfing, in fact, now crop pests and diseases should be based on the principle of prevention! When the solar calendar is in November, you should choose the best temperature on a sunny day and spray fungicide + insecticide + brassinolide + potassium dihydrogen phosphate at 10, if the conditions allow, it is best to spray twice!

Generally, it occurs in the period when the temperature rises after March, and at this time it is recommended to carry out pharmaceutical prevention and control, and it is recommended to prevent and control zeb, benzopyrazole, oxime tebuconazole + brassinolide + foliar fertilizer! It is also recommended that you spray 2-3 times of protective agents after returning to green in spring to prevent diseases and increase production!

Of course, if it is a heavy crop, because there are too many germs in the soil, the toxic components will accumulate at this time, and the germs will multiply in large quantities, so that the garlic will also have the problem of yellowing. Therefore, we must rotate crops in time, otherwise we need to add more fertilizer to be harmed by toxic gases. For example, the topdressing of ammonium bicarbonate will cause ammonia hazards, make the leaf tips wilt and gradually turn brown; Second, the waste gas emitted by the factory caused the damaged leaves to lose green rapidly, and the leaves began to turn gray-white, and the leaves withered yellow in the later stage.