What is the use method of tetraacetaldehyde?

Tetraacetaldehyde:

Also known as polyacetal, the products are 80% wettable powder, 40% suspending agent, 5% and 6% granules. It has strong stomach toxicity and contact killing effect on mollusks such as snails, snails and slugs. After entering animals, acetylcholinesterase is released in large quantities, which destroys the special mucus in snails and leads to nerve paralysis and death. But it is safe for aquatic organisms such as fish, and will not be absorbed by plants, nor will it accumulate in plants.

The methods used by various creatures are as follows:

(1) Snails and slugs: can be used for dryland crops such as vegetables, cotton, tobacco and flowers. Generally, 25-40 grams of active ingredients are used per mu, which is equivalent to 420-670 grams of 6% granules, 500-800 grams of 5% granules, and about 60-80 pills per square meter. You can also spray water with 40-50g of 80% wettable powder per mu. For the paddy field, the seeds should be sown as soon as they are released. The transplant site should be smeared immediately after transplantation.

(2) Pomacea canaliculata in paddy field: It is advisable to apply the pesticide 1 day after transplanting, with 500-600g of 6% granule or 80% wettable powder 800- 1600 times per mu. Keep the water layer for 3-4 cm for 7 days. The safety interval is 70 days. The highest residue in brown rice is 0.2 mg/kg.

(3) Oncomelania hupensis: in the tidal flat, 2. Use 5-5ml of 40% suspending agent per square meter and spray water. It can also be used to kill snails in aquaculture areas and aquaculture waters.

Note: the control effect of tetraacetaldehyde is good at about 25 degrees Celsius, but it is not good when it is lower than 15 degrees Celsius or higher than 35 degrees Celsius.

Precautions:

1. In case of low temperature (below 65438 0.5℃) or high temperature (above 35℃), the snail activity is weak, which affects the control effect.

2. Don't step on the ground after smearing. In case of heavy rain, drug particles will be washed into the water by rain, which will also affect the efficacy and need to be supplemented.

Don't step on the field after using this pesticide. Wash your hands and touch your skin with soapy water after taking the medicine.

4. Keep it safe, away from children, away from food, drinks or feed.

5. Packaging shall be properly handled and shall not be used for other purposes.

6. This medicine is poisonous if swallowed. You shouldn't eat, drink or smoke when using this medicine. If you feel unwell, please see a doctor and show your label.

Use this insecticide away from food and drinks.

Is tetraacetaldehyde harmful to people?

Tetraacetaldehyde is harmful to people and the substance is harmful to the environment, so special attention should be paid to the pollution of water bodies.

According to the classification standard of pesticide toxicity in China, this product is a moderately toxic molluscicide. Acute oral LD50 = 283/kg, acute percutaneous LD50 >: 5000mg/kg, acute inhalation LC50 >:15mg/l, acute oral LD50 = 425/kg in mice.

There is no * * * on the rabbit skin, but there is a slight * * * phenomenon on the eyes. No sensitization to guinea pigs.

The test dose has no teratogenic, mutagenic and carcinogenic effects, and the no-effect dose of two-year feeding test in rats is 2.5mg/kg. The drug has low toxicity to fish, with LC50(96 hours): 75 mg/L for trout, LC50(48 hours): 90 mg/L for Daphnia, and EC50(96 hours): 73.5 mg/L for Chlorella.

Low toxicity to birds, LD50:1030mg/kg for ducks and 18 1 mg/kg for quails. It is slightly toxic to bees, and 300g bees per hectare will not die.

Extended information: tetraacetaldehyde, tetraacetaldehyde, molecular formula C8H 16O4, molecular weight 176.2 1, CAS 108-62-3, are special pesticides for killing mollusks, such as snails and slugs. Notes on application: 1. In case of low temperature (below 65438 0.5℃) or high temperature (above 35℃), the snail activity is weak, which affects the control effect.

2. Don't trample on the ground after application. In case of heavy rain, drug particles will be washed into the water by rain, which will also affect the efficacy and need to be supplemented. Don't step on the field after using this pesticide.

Baidu encyclopedia-tetraacetaldehyde.

Physical and chemical properties of tetraacetaldehyde

This product is a white needle-like crystal with density 1.27, melting point of 246℃, sublimation temperature 1 15℃ and vapor pressure of 6.6Pa(25℃). Insoluble in water, soluble in benzene and chloroform, easily depolymerized by heat or acid. The half-life in soil is 1.4-6.6 days, which not only hydrolyzes, but also hydrolyzes.

Dosage form:

99% original technology of tetraacetaldehyde

5% tetraacetaldehyde particles

6% tetraacetaldehyde particles

6% vitamin A aldehyde granules

10% tetraacetaldehyde particles

15% tetraacetaldehyde particles

50% tetraacetaldehyde wettable powder

80% tetraacetaldehyde wettable powder

Does tetraacetaldehyde have phytotoxicity?

Tetraacetaldehyde is a selective molluscicide. 6% MIDA, light blue in appearance, softened in water, with special fragrance and strong attraction. When snails are lured by attractants to eat or come into contact with chemicals, acetylcholinesterase in snails is released in large quantities, which destroys the special mucus in snails, makes snails dehydrate quickly, paralyzes nerves and secretes mucus. Snails and slugs died of poisoning in a short time due to the loss of a large number of body fluids and the destruction of cells. The main components are tetraacetaldehyde, carbaryl and poison bait. Low toxicity to people and livestock, low toxicity to fish, land and aquatic non-target organisms, and low toxicity to silkworm.

4 toxicity editing

According to the classification standard of pesticide toxicity in China, this product is a moderately toxic molluscicide. Acute oral LD50 = 283/kg, acute percutaneous LD50 >: 5000mg/kg, acute inhalation LC50 >:15mg/l, acute oral LD50 = 425/kg in mice. There is no * * * on the rabbit skin, but there is a slight * * * phenomenon on the eyes. No sensitization to guinea pigs. The test dose has no teratogenic, mutagenic and carcinogenic effects, and the no-effect dose of two-year feeding test in rats is 2.5mg/kg.

The drug is low toxic to fish, with LC50 of trout (96 hours): 75 mg/L, LC50 of Daphnia (48 hours): 90 mg/L, EC50 of green algae (96 hours): 73.5 mg/L, and low toxic to birds, with LD50 of duck 1030 mg/kg. It is slightly toxic to bees, and 300g bees per hectare will not die.

How much is the tetraacetaldehyde pesticide per mu?

Chemical name of tetraacetaldehyde: 2,4,6,8-tetramethyl-1, 3,5,7-tetracyclooctane. Chinese alias: Mida, snail, snail Mars, Meta, mirex, snail enemy.

Molecular formula: C8H 16O4 molecular weight:176+438+0cas:108-62-3.

Tetraacetaldehyde is a selective molluscicide. 6% MIDA, light blue in appearance, softened in water, with special fragrance and strong attraction. When snails are lured by attractants to eat or come into contact with chemicals, acetylcholinesterase in snails is released in large quantities, which destroys the special mucus in snails, makes snails dehydrate quickly, paralyzes nerves and secretes mucus. Snails and slugs died of poisoning in a short time due to the loss of a large number of body fluids and the destruction of cells. The main components are tetraacetaldehyde, carbaryl and poison bait. Low toxicity to people and livestock, low toxicity to fish, land and aquatic non-target organisms, and low toxicity to silkworm. This product is a white needle-like crystal with density 1.27, melting point of 246℃, sublimation temperature 1 15℃ and vapor pressure of 6.6Pa(25℃). Insoluble in water, soluble in benzene and chloroform, easily depolymerized by heat or acid. The half-life in soil is 1.4-6.6 days, which not only hydrolyzes, but also hydrolyzes.

What are the toxicity of tetraacetaldehyde?

1, slightly * * * to the eyes.

2. This medicine has low toxicity to fish.

3. Low toxicity to birds.

Introduction:

Tetraacetaldehyde is a selective molluscicide. 6% MIDA, light blue in appearance, softened in water, with special fragrance and strong attraction. When snails are lured by attractants to eat or come into contact with chemicals, acetylcholinesterase in snails is released in large quantities, which destroys the special mucus in snails, makes snails dehydrate quickly, paralyzes nerves and secretes mucus. Snails and slugs died of poisoning in a short time due to the loss of a large number of body fluids and the destruction of cells. The main components are tetraacetaldehyde, carbaryl and poison bait. Low toxicity to people and livestock, low toxicity to fish, land and aquatic non-target organisms, and low toxicity to silkworm.