If you want to control the snail in the rice field, what should you do?

The main objects of damage are rice, aquatic green plants, leafy vegetables and other crops. The main characteristic of the hazard is that the eggs of the snail are pink and lumpy. When snails break their shells and fall into the water, they feed on floating organisms in the water.

When they grow up a little, they start to nibble on aquatic greens such as rice. Generally, rice will be bitten by Fushou snails from sowing to transplanting. When planting, they bite into the germ of the rice seed.

Fushou snail will bite the main tillering and effective tillering of the whole plant or rice seedlings, reduce the effective tillering of rice, and affect the yield and income of rice.

Morphological characteristics of the snail The shell of the snail is spiral-shaped, and the shell color varies with the environment, climatic conditions and snail age. Snail eggs are round in shape and are pink to bright red at the beginning of their laying, then turn gray and then brown again. There are many egg-laying particles and it is not easy to fall off.

Often lay eggs at night on dry objects or plant surfaces. When newly hatched snails fall into the water, they will devour aquatic plankton, etc. When a drought occurs, the snail closes its shell and remains motionless.

What to do with snails in rice paddies? The hazards and control measures of Fushou snails in paddy fieldsComprehensive control methods of Fushou snailsAgricultural prevention and controlRaising ducks in fields or areas where snails are often produced, because ducks like to eat snails, so the number of snails can be reduced.

Manual capture of snails is most active, so eggs and snails can be picked manually during this time to control their damage to crops. Set up a separation wall at the irrigation (entrance) of the farmland, and cover the fence with barbed wire or bamboo fence at the irrigation mouth of the farmland to prevent snails from entering the farmland and harming rice. Hand picking up or raising chickens, ducks and geese is actually unrealistic, and the labor cost is high.

Raising chickens, ducks and geese to eat snails is also harmful to seedlings, and the gains outweigh the losses. Some people use lime or tea wilting to prevent it. It seems that tea withering is not easy to find in the countryside, and the cost of lime is not low.

In fact, as long as chemical control can make farmers more acceptable.

How to control snails in rice fields? Is there any specific medicine? The chemical control methods of snails are officially registered on the Fushou snail The drugs are spironolactone ethanolamine salt, spironolactone, and tetraacetaldehyde, among which spironolactone ethanolamine salt is the most registered, followed by spironolactone, and tetraacetaldehyde is the least.

Olamine olamine salt and olamine belong to the same type and are the most common drugs on the market. But the problem with both drugs is that snails can come back to life when the dose is not enough, and both drugs are highly toxic to aquatic life. Tetraacetaldehyde, which is rarely used in rice, can be prevented by mixing sand and gravel after sowing.

This drug is safe for aquatic organisms, and tetraacetaldehyde is highly acutely toxic, so pay attention to self-prevention.

Because the snail is more serious in the rice field, it is mainly harmful to rice. If you want to prevent rice fields, the most effective way to prevent them is to use chemical control. This is an invasive alien species.

Using chemicals** can reduce the damage they cause to rice paddies. Because they carry parasites, they only live on them, not the source of the disease. So don't use other methods**, this method is the most effective and the most labor-saving method.

You can put a flock of ducks in the rice field, because the ducks can eat those snails.

Spraying 50g of 70% shellfish snail with 50kg of water per mu of paddy field, or sprinkling 40kg of mida mixed fine soil per mu has a better effect. There is also duck breeding to inhibit the reproduction of snails.

The proliferation of snails in rice fields not only reduces rice yields, but also increases farmers' input in planting costs. One of the common ones is the use of pesticides and artificial use of snails.

1.Use of pesticides: At present, the common way to deal with Fushou snail is to use pesticides (spiramine) to kill, and spray it to the rice field before transplanting.

The key is that the movement of the pesticide during transplanting (throwing seedlings) is also conducive to the uniform distribution of pesticides. However, with long-term use of pesticides, Fushou snails will also develop resistance, and they may not have any medicinal effects in the future.

2.Manual pick-up: Although most of the snails in the rice field can be killed by pesticides, some of the slightly larger snails have escaped.

In addition, you can't remove all the snails near the canal, they will follow the current and re-enter the rice paddies to breed. At this time, it can only be picked up by manually going to the field, and if there are more, it is not a problem to pick up dozens of catties per acre of land. If you don't pick it up, the larger snails will lay eggs at the root of the rice seedlings.

The eggs laid by the snails.

How can we better remove the snails in the rice field?

In order to reduce the use of pesticides in the rice planting of snails, the more efficient way is to control them through the nemesis of snails. What is the nemesis of Fushou snail in the countryside? Everyone knows ducks, right?

Moreover, breeding ducks can not only eat the snails of the rice field, but also be a good supplier of farm fertilizer.

1.Before planting rice fields: If you want to better remove the snails in the farmland, especially before transplanting, it is recommended to raise the ducks in the field, so that the ducks can forage for the snails by themselves.

2.Rice seedling stage: How to clean the snail in the rice seedling stage?

At this time, if you still put adult ducks, it is definitely not good, and the ducks will also spoil the seedlings and affect the normal growth of the seedlings. Since it is a small seedling stage, we can use the same method to raise smaller ducks. You can not only eat Fushou snails, but also avoid the ducks trampling on the seedlings.

It is recommended to buy ducklings when planting seedlings and raise them, and wait until the rice grows for about 20 days before putting them in the field to forage for snails, and the ducks at this time are just 20 days old (the growth cycle of ducks is about 70 days).

3.Rice seedling stage: As the rice grows higher and higher, the duck gradually grows larger, and the duck at this time will not affect the growth of the rice field, and can freely shuttle back and forth between the rice seedlings to forage.

In this rice growth cycle, the ducks raised can not only forage for snails, but also harm big pests by touching rice seedlings, which can be said to kill two birds with one stone.

The methods of eliminating Fushou snails are: tea wither, medicine, artificial, and herring.

1. Tea withered

The ditch Fushou snail can put a few bags of tea at the mouth of the upstream canal, the bag is punched in advance, and then put an appropriate amount of water to soak and flow, and the irrigation water containing tea saponin can basically kill the Fushou snail along the way. When carrying out tea withering and snail extermination, it is necessary to isolate the breeding paddy field, and the tea withering extract has obvious toxicity to many aquatic animals.

2. Pharmacy

The agents for the prevention and control of Fushou snails are tetraacetaldehyde, spiramine, spiramine ethanolamine salts, etc., such as 30-40 grams of 70% spiramine wettable powder spray or poison * method, the field should be watery, Fushou snails and other snails will be dehydrated after sucking or contact for 1 day, and Fushou snails will die after three or four days, which can basically prevent and control the Fushou snails in the field.

3. Manual

Can take manual picking snails, this method is time-consuming and laborious, if the snail is a lot of people are willing to pick up, pick up the Fushou snail can be used to make poultry and aquaculture feed after crushing, turning waste into treasure, killing two birds with one stone. Fushou snails in river and shallow water can be entrapped with ground cage nets filled with melon peel and vegetable leaves, and the effect is more obvious.

4. Herring

Biological control should be adopted in rivers (reservoirs, ponds) for snails, that is, a large number of snail-eating fish such as herring should be put in snail waters to reduce the snail density in the water body and control the invasion of snails into snail-free waters. Due to water pollution and damming, fish stocks in most rivers have been greatly damaged, reproductive migration has been cut off, so artificial release of fish fry has to be carried out.

The snail is a common invasive alien species that causes serious harm to rice and other aquatic plants. Here are some of the methods that can be used to get rid of snail eggs:

1.Manual removal: Fushou snail eggs are generally laid on rice plants and can be removed using tools such as bamboo poles, wooden sticks or hands. Care should be taken not to damage the rice plants during removal, and the removed egg masses should be destroyed in a centralized manner.

2.Flooding: After the snail has laid eggs, the rice field can be filled with water to flood the stems and leaves of the plant, which can effectively kill the snail eggs.

However, it should be noted that if the water in the field is not deep enough, it may prevent the eggs from being completely submerged by the water and thus not achieve the desired effect.

3.Chemical control: Some chemical agents can be used to destroy snail eggs, such as tetraacetaldehyde, spiramine, etc. However, it is important to note that when using chemical agents, it is necessary to follow the instructions for use and pay attention to safe use.

4.Biological control: The population of snails can be controlled by stocking ducks, fish, etc.

For example, ducks can be stocked in rice fields and allowed to eat snails and egg masses. At the same time, raising some Chinese soft-shelled turtles, herring fish, black mules and other fish in the rice fields can also effectively control the number of snails.

It should be noted that the snail is an invasive alien species with strong adaptability, and its number and degree of harm may increase over time. Therefore, it is necessary to regularly inspect the rice plants and the surrounding environment, and timely detect and take measures to control the number and degree of harm of Fushou snails.

Comrade Farmer: Hello!The answer to your question is as follows:

The main methods of artificial and agricultural control are snail picking, egg picking and scientific water management. Organize manpower, manually pick up snails after the water is shallow and destroy them in a centralized manner, or break the large snails and feed them to ducks and chickens, and small snails with lime for fertilizer. Egg masses are manually removed during spawning and before hatching, and then buried intensively, broken or burned.

In areas where snail damage is severe, avoid field water string irrigation or set up interception nets at the water inlet of paddy fields to prevent the intrusion of Fushou snails with irrigation water. During the full incubation period of snail eggs, the resistance of the newly hatched young snails is weak, so we should pay attention to drainage at this time and properly expose the field, which can reduce the survival rate of young snails.

Raising duck snails is a good way to control organisms. In the area where the Fushou snail occurs, farmers are organized to raise ducks in a planned way, and put them in farmland and ditches to peck at the young snails during the incubation period of the snail eggs, so as to kill the snails and feed the ducks, killing two birds with one stone.

Fushou snails are large, adaptable, grow and reproduce quickly, and have high yields. It is mainly distributed in Guangdong, Guangxi, Jiangxi, Fujian, Hunan and other provinces. Fushou snail not only harms a variety of aquatic plants such as narcissus and orchids, but also harms rice and other plants, and is one of the main diseases of rice planting.

So do you know what harm the appearance of Fushou snails in rice fields will bring? And how can we prevent it?

The main hazard object.

Crops such as rice, aquatic greens, leafy vegetables, etc.

The main characteristics of the hazard.

1.Snail eggs are pink in color and huge in size. When young snails break their shells and fall into the water, they eat the organisms floating in the water.

When they grow a little bigger, they start eating aquatic greens such as rice. Under normal circumstances, rice will be attacked by snails from sowing to transplanting. When they sow seeds, they eat the sprouts of the rice.

Fushou snails will eat the shoots or main lobulation and effective lobulation of rice seedlings, resulting in the reduction of effective lobulation of rice, which affects the yield and income of rice source fiber.

2。Morphological characteristics of the snail.

The shell color of the snail changes with the environment, climate and age of the snail. The first period is pink to bright red and then turns off-white and brown. The eggs are usually laid at night on the surface of dry objects or plants.

When newly hatched snails fall into the water, they devour aquatic plankton, etc. When the water dries out, the snail closes its shell and does not move.

Comprehensive control technology of Fushou snail.

1.Agricultural control.

2.Manpower. Morning and evening are the most active times for snails, and eggs can be collected manually during this period to control the damage of snails to crops.

3.If there is no registration at the irrigation (water inlet) of farmland, a retaining wall should be installed.

In order to prevent snails from entering the farmland and harming rice, barbed wire or bamboo nets are used to block the irrigation inlet.

4.Top dressing in the field to kill snails.

Before rice transplanting, the shallow state of the field should be maintained, and the basal fertilizer should be applied to eliminate the snails. The second top dressing is carried out after rice transplanting. Ammonium bicarbonate (25-30kg 667) or urea (10-15kg mu) is evenly applied per mu, mixed with fine sand (20kg mu). The water-soluble fertility of ammonium bicarbonate was used to eliminate the pesticide of Fushou snails.

5.Pharmacological prevention.

When the amount of snails in paddy field is greater than 2 3 grains, the commonly used control agents are: 50% snail net (ethanolamine salt) wettable powder 60 80g; 50% spironet (spirolamine salt) wettable powder 60-80g; 50% snail net (snail hail imitation ethanolamine salt) wettable powder 60-80g; 200-250g of 65% sodium pentachlorophenol wettable powder, mixed with fine sand (40kg mu); 98% copper sulfate (packed in a cloth bag, with the water flow into the rice field inlet to kill the snails; Using 3 5kg 667 cooked tea cakes to kill snails can not only kill pests in the soil, but also effectively kill puffer fish. When using pesticides to control puffer fish, attention should be paid to personal safety.

At the same time, it is also necessary to prevent pesticides from entering the fish pond with the water flow, causing poisoning incidents.