How to kill the eggs of Fushou snails in rice?

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 they can be removed using tools such as bamboo poles, wooden sticks, or hands. Care should be taken not to damage the rice plants during the removal and the removed egg masses should be destroyed centrally.

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 and 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.

I lost it, this thing has a lot of bacteria, and I can't eat it.

The eggs of the snail can not survive for a long time in the water, and the eggs of the snail can survive for 1 to 2 days without other interference when they fall into the water, if the eggs of the snail do not hatch within 1 to 2 days, they will die. Under normal circumstances, the eggs of the snail will be eaten by natural enemies such as fish, shrimp, and crabs if they fall into the water, so the eggs of the snail cannot survive in the water.

After the eggs of the snail hatch and the male and female mate, fertilization takes place in the body. The spawning sites are mainly weeds, crop plants or ditch stone walls 10-20 cm above the water surface. The eggs of the snail must absorb enough heat on the water surface to hatch successfully, and the temperature in the water is not enough, and it will not hatch successfully under normal circumstances.

After hatching, the larvae snails fall off in the water, that is, they can plankton to forage and live independently. Adult snails lay eggs more often and in large quantities, and can lay eggs more than 10 times in a row every mating. Adult snails prefer to inhabit rivers and paddy fields with fertile soil and slow flowing water where aquatic plants grow, and mostly sink to the bottom of the water and attach to the edge of the pond during the day, or gather under aquatic plants to feed at night.

Pesticides kill snails:

With a water ratio of 45% 100 snail enemies, 40 60 grams of spray per mu, or 70% snail killing, 30 40 grams of spray per mu, the snail killing rate can reach more than 90%.

The fundamental treatment of Fushou snail should rely on the comprehensive treatment measures of "based on biological control, supplemented by agricultural control, and supplemented by chemical pesticide control".

The best way to prevent and control the harm of Fushou snail is to "treat snail with duck". Because poultry such as hemp duck and muscovy duck have the habit of searching for underwater animals and like to eat Fushou snails. Fushou snail is an excellent animal feed for ducks, and there is a habit of duck farmers picking up adult snails to feed ducks.

Generally, each kilogram of hemp duck can eat about 120 150 grams of Fushou snail at a time, and each kilogram of muscovy duck can eat about 250 300 grams of Fushou snail per bird. Except for more than 10 grams of adult snails, ordinary young snails can be eaten up.

For this type of snails, there is a kind of tetraacetaldehyde, which is generally used for this variety, special mollusks.

Any pesticide will do.

As long as it is sprayed evenly and there is no omission, it can be completely removed.

This mollusk has very low resistance to antibiotics, and it will kill if it is stained.

Just be careful when spraying pesticides.

Because they also reproduce quickly, the slightest negligence will overflow.

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 good effect. There is also duck breeding to inhibit the reproduction of snails.

The hazards of Fushou snails are as follows:

1. Cause a reduction in grain yield: During the rice growth period, Fushou snails will eat rice seedlings and seedlings, resulting in fewer seedlings and fewer effective ears, thereby affecting grain production. According to the relevant statistics of the Agricultural Resources Protection and Utilization Department of the Hunan Provincial Department of Agriculture and Rural Affairs, in recent years, some areas of Hunan have suffered from a shortage of seedlings due to the influence of Fushou snails, and the seedling shortage rate has reached more than 20%, which has affected the yield of rice in Liangzhao, with an average yield reduction of 5% to 10% per mu, and a particularly serious reduction of 30% to 50% in rice fields.

2. Destroy the growth of vegetables and aquatic plants: Fushou snails eat miscellaneous, like to gnaw on plant leaves, etc., aquatic crops such as lotus root in some areas are affected by the nibbling of Fushou snail forest, the stems and leaves are yellow and wilted, and the yield reduction rate is more than 50%.

Prevention and control of Fushou snails

Before spring ploughing, farmers clean the ditches at the edge of the paddy fields, remove silt and weeds, and take them away from the paddy fields to concentrate on the sun or dig pits for deep burial. This can kill the overwintering snails to reduce the amount of snails after winter. During the peak spring spawning period from mid-to-late May to early to mid-June, egg masses are removed from the fields and ditches and crushed by the paddy fields in combination with field management.

Secondly, when the number is small, measures such as manual interception, booby-trapping, snail picking, and egg picking are strengthened, supplemented by rice field duck raising, pecking snails and egg masses. In the heavier areas, nylon nets or barbed wire (ranging from the size of rapeseed to the size of beans) are installed at the inlets of the main irrigation canals in the rice area, and fixed with wooden frames or wire frames to make them exceed the water surface by 20 cm to prevent the snails from entering the field with the water.