| Product name | Metaldehyde |
| Specification | 98%TC;80%WP;40%SC |
| Use | Prevention and control of snails in rice fields, snails and slugs in citrus and cotton fields, slugs and snails in melon fields |
| Features | White to colorless crystalline solid, insoluble in water, insoluble in acetic acid. It is flammable, explosive, non-corrosive; No photolysis, no hydrolysis, can react with oxidant |
Tetracyletaldehyde is a cyclic polymer of tetracyletaldehyde, which is a pesticide used to control snails and other gastropods, so it is also known as the "snail enemy". Its molecular formula is C8H16O4 and its molecular weight is 176.21. Metaldehyde is a white to colorless crystalline solid, insoluble in water, easily soluble in benzene, insoluble in acetic acid. It is flammable, explosive, non-corrosive; No photolysis, no hydrolysis, can react with oxidant.
Tetracytaldehyde has a special flavor and strong attraction, and is commonly used as an insecticide against slugs, snails and other gastropods. It can allow such animals to be poisoned and die in a short time after contact, but it does not accumulate in plants and will not harm crops.
| Action mechanism | Metaldehyde is a highly selective molluscicide. 6% Mita, light blue appearance, softened in water, has a special fragrance, has a strong attraction. When the snail is attracted by the attractant and feeds or comes into contact with the agent, a large amount of acetylcholinesterase is released in the snail body, destroying the special mucus in the snail body, causing rapid dehydration of the snail body, nerve paralysis, and secreting mucus. Due to the loss of a large number of body fluids and the destruction of cells, the snail and the slugs are poisoned and die in a short time. The main ingredients are tetraldehyde, menafaryl and bait. Low toxicity to humans and animals, low toxicity to fish, land and aquatic non-target organisms, low toxicity to silkworms. |
| Usage method | Granules - This product is spread on the surface of bare land or around the roots of crops, in order to obtain a good control effect, it must be according to the living habits of snails and slugs. In the peak season of pest breeding, two weeks after the first use of additional application, the effect is better. Because the spring and autumn rainy seasons are the peak period of snail activity, which is the key period of application, 500 grams of 6% granules per mu can be used after seeding or transplantation of seedlings, and evenly spread, or mixed with fine sand, so that Fushou snails, snails and slugs can easily contact the agent and achieve the seedling protection effect.
Wettable powder - Rice: Apply this product within one day after planting, spray on the rice field, the water layer should be 3-4 cm, and keep for 3-7 days. Apply the same amount to vegetables, cotton and tobacco as above, and spray evenly to make it easier for slugs and snails to access the agent. Seedling field: Apply the medicine immediately after sowing the seeds. Transplant field: Apply medicine immediately after transplantation. Tobacco, cotton (for seedling protection): After the crop transplantation, spray some on the root of the crop immediately, can achieve the ideal effect. |
| Attention | 1. In case of low temperature (below 1.5 ° C) or high temperature (above 35 ° C), the snail activity is weak, affecting the control effect.
2. do not trample on the ground after application, if heavy rain, the drug particles are washed into the water by rain, it will also affect the efficacy, need to be applied.
3.after using this pesticide, do not trample in the field. |
| Store | Closed operation, local exhaust. Prevent the release of dust into the workshop air. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety glasses, anti-gas permeating work clothes, and latex gloves. Keep away from fire and heat. No smoking in the workplace. Use explosion-proof ventilation systems and equipment. Avoid producing dust. Avoid contact with oxidants. Equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. Empty containers may have harmful residues. |
| Application | 1.Agriculture
The products of Metaldehyde are called Mida, snail enemy, snail killer, snail Mars, Meta, snail killer, etc.; The common dosage forms are 5%, 6%, 10%, 15% granules, 50%, 80% wettable powder. Tetaldehyde is commonly used as an insecticide against slugs, snails and other gastropods. It is suitable for vegetables, ornamental crops, fruit trees, berries, bananas, etc. grown in sheds or outdoors. It is a low toxicity pesticide assessed by the World Health Organization (WHO), and a medium toxicity insecticide according to the toxicity classification standard of pesticides in China.
Metaldehyde has a special flavor and a strong attraction. After snails and slugs are consumed or contacted, a large amount of acetylcholinesterase is released in their bodies, destroying the special mucus in the body, causing rapid dehydration, nerve paralysis, destruction of a large number of body fluids and cells, and death in a short time. However, Metaldehyde does not accumulate in plants and does not harm crops.
Metaldehyde can be used to control Fushu snail in rice field, mixed with granular sand within 1 day after transplanting, and applied evenly, it is appropriate to apply after rain or in the evening. To control snails and slugs in citrus and cotton fields, granules can be applied in the evening. When controlling slugs and snails in melon fields, you can choose to spread or apply granules in clear sky.
2.Industry
(1)Solid fuel
Metaldehyde can be used as a solid fuel for small heaters in industry and is known as solid alcohol. Because it is flammable, burns smoothly, and has no ash pollution, it can be used as a component in lighting candles and fireworks materials, and can also be used to make firecrackers, fireworks, and colored candles.
(2)Blowing agent
In the manufacture of foam, Metaldehyde is a blowing agent. For example, in the process of caprolactam polymerization, a small amount of Metaldehyde can be added to produce a very light texture of polyamine foam.
(3)catalyst
Metaldehyde can be used as a catalyst for artificial rainfall. Artificial catalytic rainfall is an effective fire extinguishing method and a better fire prevention measure. As an artificial ice core, Metaldehyde has the advantages of high efficiency, low cost and non-toxic, which can replace expensive, scarce and toxic silver iodide. The determination of the ice-forming property of Metaldehyde shows that its ice-forming rate is slightly lower than that of silver iodide, but the ice-forming threshold temperature is higher than that of silver iodide, about -1ºC. For seeding clouds slightly below 0 ° C, Metaldehyde is superior to silver iodide. At the same time, the experimental results show that in the process of use, all Metaldehyde has been evaporated, and some particles of silver iodide remain in the atmosphere, falling downward, causing atmospheric pollution. |
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