What is the reason for too many snails in the vegetable field, and how to solve too many snails in t

Snails, also known as snails and buffaloes, are mollusks.

There are mainly two kinds of homotype snails and gray snails, both of which are polyphagous and can harm cruciferae.

Fabaceae, Solanaceae.

Vegetables as well as cotton, hemp, sweet potatoes, cereals, mulberries, fruit trees, corn and other crops. The amount of young shellfish is very small, the newly hatched young shellfish only eat mesophyll, leaving the epidermis, and scrape the leaves and stems with the tooth tongue after being slightly larger, forming holes or missing cuts, and even biting off the seedlings, resulting in the lack of seedlings and broken ridges.

Snails lurk during the day, feed in the evening or early morning, and roost on plants all day long on rainy days. The surface of the eggs has mucus, and after drying, the egg grains are glued together into lumps, and the newly hatched young shellfish gather together to eat, and when they grow up, they are scattered and harmful, and they like to inhabit the dense and low-lying and moist places of the plants. --Adult shellfish survive for more than 2 years and reproduce quickly in the rainy season, high humidity and high temperature.

When the snail moves, it secretes mucus, which is dry and shiny when the air is dry, so the ground where the snail crawls leaves traces of mucus.

Extended material: How to control snails?

1) Agricultural prevention and control: First, clean the field frequently, cultivate it in time, and remove weeds and crop residues in the field and furrow. Destruction of snail habitats and spawning grounds.

The second is to turn the ground deep in autumn and winter. Turn the eggs and overwintering adults to the surface. The third is not to apply unrotted organic fertilizer.

2) Physical control: (1) Artificial hunting. Use branches, weeds, vegetable leaves, etc. as a trap pile, place a pile every 3 meters and 5 meters, let the snails lurk under the trap pile, and then concentrate on catching them the next morning, mash and bury them deeply. (2) Sprinkle quicklime.

Bring. Scattering quicklime between or around crop rows can significantly reduce snail damage.

3) Chemical control: snails are mollusks, not insects, and general insecticides have no control effect on them. In case of heavy rain after application, the agent is washed into the soil, and the efficacy is greatly reduced, so it is necessary to supplement the application.

The varieties of pesticides used to control snails can be used alternately, which can not only ensure the effect of killing snails and protecting leaves, but also delay their resistance to snail pesticides.

It can also extend the service life of the snail remover.

Part of the content is excerpted from the "Ecological Atlas of Primary Colors for Large-scale Production of Maize and Green Prevention and Control of Diseases, Insects and Weeds".

The reason for the snail epidemic in recent years is mainly related to the change of the ecological environment. Originally, there were many frogs and birds in the farmland, they were the natural enemies of snails, due to the extensive use of pesticides, now there are fewer birds and frogs in many farmlands, and the adaptability of snails is stronger, so they survive and reproduce.

Another key point is that snails reproduce very quickly, and there are not many snails found at first, but if you don't take control measures in time, it won't be long before snails are all over the ground.

In addition, in the early years, when straw was not burned, farmers had the habit of burning wheat straw on the spot, which not only eliminated many pests and diseases, but also burned the snail along with its eggs. After the ban on straw burning, most of the wheat straw was returned directly to the field, which provided a good living environment for the snails, so that it is now flooded.

The snail prefers a cool, damp environment, and the underside of the crops is also where it likes to perch. Snails mainly eat the leaves of crops, and summer crops such as soybeans, corn and some leafy vegetables are the objects of its harm.

Due to the large number of snails and the serious harm, if prevention and control measures are not taken in time, crops will be bitten into stalks in a short time, resulting in a reduction in yield and failure of harvest.

There is a lot of water, there is a lot of humidity, and there is a lot of water next to it.

Snails, slugs bai

Prevention: Available in du

Around the evening, four polyacetaldehydes were sprinkled to kill snails and prevent DAO. Sprinkle quicklime strip also edition.

It is an effective way to control snails, and the right to sprinkle about five centimeters of quicklime around the farmland can effectively prevent snails from entering the field.

It can also be sprayed before 10 o'clock in the morning or around the evening, and the effect is also good.

The solutions to snail in vegetable fields include manual capture, selection of snail-tolerant varieties, use of chemical pesticides, use of natural enemies, and prevent snails from entering.

1. Manual capture: You can use a flashlight to look for snails in the evening or morning, and then manually collect them and put them in a container. This method is time-consuming and labor-intensive, but it is suitable for small-scale vegetable plots.

2. Select snail-tolerant varieties: Some plants have strong snail resistance, and planting these varieties can reduce snail damage. For example, kale, celery, and vanilla.

3. Use chemical pesticides: If the number of snails is very large, it may not be practical to catch them manually. Chemical pesticides may be considered, but care should be taken for dosage and safe handling.

4. Use natural enemies: Some insects, birds and amphibians can prey on snails, and the introduction of these natural enemies into vegetable fields can control the number of snails. For example, birds can be attracted to vegetable patches by setting up feeders or building nests.

5. Prevent snails from entering: If snails can be effectively prevented from entering the vegetable field, no other measures need to be taken. You can dig a trench with a depth of 10-15 cm around the yard of Caizhen, and lay coarse sand or small stones in the trench so that it is difficult for snails to pass through.

1. Free-range chickens and ducks: Chickens and ducks are the natural enemies of snails and will prey on the snails in the vegetable field. (2) Sprinkle quicklime.

Sprinkle quicklime around the vegetable patch and let the snails burn to death if they come into contact with it. 3. Sprinkle grass and wood ash: snails like dryness, and smearing grass and wood ash with green vegetables can avoid snail gnawing.

4. Use of pesticides: sprinkle tetraacetaldehyde granules into the vegetable field to let the snails suck to death.

1. Stocking chickens and ducks

There are too many snails in the vegetable field can take the method of physical control, chickens and ducks and other birds belong to the natural enemies of snails, drive them into the vegetable garden, you can prey on the adult snails in the field, but before physical control, you can not spray pesticides on the vegetable field, so as not to eat the green vegetables with pesticides by chickens and ducks, and there is poisoning.

2. Sprinkle lime powder

Snails are mostly active on the ridges around the vegetable field, if you want to remove the snails in the vegetable field, you must sprinkle lime powder with a thickness of 5 mm and a width of 40 cm around the vegetable field in the morning or evening, when the snail sticks to the lime powder, it will be scalded to death by the heat emitted by the lime powder.

3. Sprinkle grass and wood ashes

Too many snails in the vegetable field can be removed with plant ash, snails like a humid environment, and plant ash has a hygroscopic effect, can keep the environment dry, in the process of use, the plant ash should be directly smeared on the stems and leaves of the greens to avoid snails to eat, and snails in the case of insufficient food, will leave the vegetable garden, looking for other food.

4. Use chemicals

If you want to clean the snails in the vegetable field, you can buy tetraacetaldehyde granules from the market, and then sprinkle the agent in the vegetable field after a rainy day or on a sunny day, and the snails will be attracted by the agent, resulting in severe dehydration and eventually death.

1.The reason for the increase in the number of snails in vegetable fields.

Vegetable snails are a common pest that feeds on vegetables, trees, etc., causing damage to vegetable fields. There are many reasons for the increase in snail populations, but the main reason is environmental factors. If the soil in the vegetable plot is moist and there is no good ventilation, it is easy for snails to grow.

In addition, climatic factors such as hot and humid weather and heavy rain can also lead to a large number of snails.

2.The effect of snails on vegetable patches.

Snails will eat a large number of vegetables, trees, etc., which will cause harm to vegetable fields, causing plant growth to be stunted, reduced yield and even bizarre death. In addition, snails can also have an impact on the soil, as they eat some organic matter, which can lead to a decrease in soil quality.

3.How to prevent snail production.

It is necessary to prevent it through effective methods to reduce the production of snails in vegetable fields. First of all, pay attention to the ventilation and humidity of the vegetable field, and keep the vegetable field dry and ventilated. Secondly, it is necessary to apply fertilizer reasonably to increase soil fertility, thereby improving the immunity of plants.

In addition, regularly cleaning up the weeds and fallen leaves around the vegetable field to reduce the places where snails roost will have a very beneficial effect on the production of snails in the vegetable field.

4.Biological control methods.

Biological control is an effective way to control the snail population. Some insects, birds, amphibians and reptiles are natural enemies of snails. If they are introduced into the vegetable patch during the period of snail growth, it can be effectively controlled.

In addition, the use of parasites to control the number of snails is also a scientific method.

5.Drawbacks of chemical prevention.

Chemicals are an effective means of controlling the number of snails in vegetable patches. Chemicals can kill a large number of snails, but at the same time, they can also pollute the environment and endanger human health. Therefore, we should avoid the use of chemicals as much as possible and use more biological control methods.

6.Methods of manual capture.

Place some traps in the vegetable patch that are specially designed to catch snails, for example, you can use an empty jar, bury its mouth in the soil, and then add some dead plant leaves, etc., you can attract snails to burrow into the jar, so as to achieve the effect of catching. If you have a lot of material on hand, you can spend money on professional snail trapping tools.

7.Summary.

For the prevention and treatment of vegetable snails, we should comprehensively apply a variety of means. From an environmental point of view, it is necessary to ensure good ventilation and dryness of vegetable fields; From a technical point of view, biological control methods such as placing traps to catch snails and using their natural enemies to control snail populations are used. In short, only by constantly trying and exploring can we find the most suitable method for ourselves, control the number of snails, and protect the production of vegetable fields.