Pyrethroid pesticide (fenvalerate solution) and preparation method thereof
A technology of pyrethroids and fenvalerate, which is applied in the field of poultry and livestock insecticides, can solve problems such as shortages, achieve good stability, reduce the risk of environmental pollution and drug residues, and have good killing effects
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[0019] A preparation method for pyrethroids (fenvalerate solution), comprising the following steps:
[0020] (1), accurately take each component by the mass percentage described in claim 1 for subsequent use;
[0021] (2), accurately weighed ethyl acetate and fenvalerate are poured into the batching tank successively;
[0022] (3) After the esfenvalerate is completely dissolved, add accurately weighed Tween 80 and Span 80, constant volume with absolute ethanol, and fully stir for 30 minutes.
[0023] A kind of pyrethroid medicine (fenvalerate solution) and preparation method thereof provided above have the following advantages:
[0024] (1) The pyrethroid drug (fenvalerate solution) provided by the present invention has a reasonable proportion, good stability, convenient use, low toxicity, high efficiency and safety, and reduces the risk of environmental pollution and drug residue caused by other drugs ;
[0025] (2), the pyrethroid medicine (fenvalerate solution) provided ...
Embodiment 1
[0028] ①. Accurately weigh 10kg of ethyl acetate and 20kg of fenvalerate and pour them into a mixing tank until the fenvalerate is completely dissolved.
[0029] ②. Accurately weigh 1 kg of Tween 80 and 1 kg of Span 80, pour them into a mixing tank, use absolute ethanol to make up to 100 L, and stir thoroughly for 30 minutes to obtain the product.
Embodiment 2
[0031] ①. Accurately weigh 10kg of ethyl acetate and 20kg of fenvalerate and pour them into a mixing tank until the fenvalerate is completely dissolved.
[0032] ②. Accurately weigh 2 kg of Tween 80 and 2 kg of Span 80, pour them into a mixing tank, use absolute ethanol to make up to 100 L, and stir thoroughly for 30 minutes to obtain the product.
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