Amitraz with the CAS number 33089 - 61 - 1 is an organic compound. Its chemical name is N,N' - [(methylimino)dimethylylidene]di - 2,4 - xylidine. The molecular formula is C₁₉H₂₃N₃, and the molecular weight is approximately 293.41 g/mol. Amitraz appears as a yellow to brownish - yellow crystalline solid. It is slightly soluble in water but soluble in organic solvents such as acetone, methanol, and chloroform. The melting point of Amitraz ranges from 70 - 72°C.
Amitraz has a wide range of applications. In the agricultural field, it is mainly used as an acaricide and insecticide. It can effectively control mites, ticks, and lice on livestock and poultry. For example, it can prevent and treat scabies mites on cattle, sheep, and pigs, which helps to improve the health and well - being of animals. In addition, it is also used to control pests in crops. Amitraz can be used on fruit trees, vegetables, and cotton to protect them from damage by various insects and mites, thereby increasing crop yields.
When using Amitraz as an animal acaricide, it is usually formulated into a solution for dipping or spraying. For dipping, prepare a solution with the appropriate concentration according to the instructions, and then fully immerse the animals in the solution for a certain period. When spraying, use a sprayer to evenly spray the solution on the animal's body surface, paying attention to covering all parts. When using it on crops, it can be applied through foliar spraying. First, dissolve the Amitraz in water to make a spray solution. Then, use a sprayer to spray the solution evenly on the leaves of the crops. The application rate and frequency should be determined according to the type of crops, the degree of pest infestation, and the growth stage of the crops. It is important to wear appropriate protective equipment, such as gloves and masks, during the application process to avoid direct contact with the chemical.
Case 1: Livestock Mite Control
A large - scale pig farm was suffering from a severe mite infestation. The pigs were showing symptoms such as itching, hair loss, and reduced growth rate. The farm decided to use Amitraz. They prepared a 0.025% Amitraz solution and dipped the pigs in it. After one week, the itching symptoms of the pigs were significantly reduced. After two weeks, the mites were almost completely eliminated, and the pigs' hair began to grow back, and their growth rate improved.
Case 2: Crop Pest Control
A cotton field was attacked by spider mites, which led to yellowing and withering of the cotton leaves. The farmer applied a 0.1% Amitraz solution to the cotton plants through foliar spraying. Three days after the application, the number of spider mites decreased significantly. After one week, the cotton leaves regained their green color, and the growth of the cotton plants returned to normal, resulting in a higher cotton yield at the end of the season.
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