Methyl-abamectin benzoate microemulsion and prep. thereof

Abstract

The present invention belongs to pesticide, and relates to one kind of semi-synthetic biological pesticidal miticide and its preparation. The micro emulsion of methylamino abamectin benzoate contains methylamino abamectin benzoate 0.1-10 wt%, solvent 1-20 wt%, cosolvent 1-20 wt%, emulsifier 5-60 wt% and water 20-90 wt%. The said components are mixed via stirring in a reactor to form homogeneoustransparent liquid product. The present invention has the advantages of less environmental pollution and raised herbicidal effect.

Description

technical field

[0001] The invention belongs to the field of new formulations of pesticides and insecticides, and relates to a semi-synthetic biological insecticide and acaricide starting from the biologically fermented pesticide abamectin, i.e. emamectin benzoate Microemulsions and methods for their preparation. Background technique

[0002] Emamectin benzoate has a very high activity on the larvae of Lepidoptera insects and other pests and mites, and has a remarkable stomach poisoning effect and good contact killing effect. It has the advantages of super high efficiency, long-lasting effect, and high safety to all crops and beneficial insects. It has a good medicinal effect at a lower dosage. Compared with the application of the original parent avermectin, the insecticidal effect is increased by 10 to 100 times. There are already several factories in China producing emamectin benzoate, and its dosage form is mostly emulsifiable concentrate. The production of emulsifiab...

Examples

example 1

[0019] Emamectin benzoate technical 2kg; toluene 5kg; isopropanol 2kg; emulsifier 10kg. Firstly, toluene and isopropanol are added into a reaction kettle with a stirrer and mixed evenly, then the original medicine of emamectin benzoate is added and mixed and stirred for 1.5 hours. Then add an emulsifier and continue to stir evenly, and finally add water to make up to 100kg, and stir for 1.5 hours to make it a homogeneous and transparent solution product.

example 2

[0021] Emamectin benzoate technical 1kg; Propyl acetate 2kg; Isobutanol 5kg; Emulsifier 15kg. First add propyl acetate and isobutanol to the reaction kettle with a stirrer and mix evenly, add the original medicine of emamectin benzoate and mix and stir for 1.5 hours, then add the emulsifier and continue to stir evenly, and finally Add water to make up to 100kg, and stir for 1.5 hours to make it a homogeneous and transparent solution product.

example 3

[0023] Emamectin benzoate technical 0.2kg; propyl acetate 1kg; ethylene glycol 3kg; emulsifier 10kg. First, propyl acetate and ethylene glycol are added into a reaction kettle with a stirrer and mixed evenly, then the original drug of emamectin benzoate is added and mixed and stirred for 1.5 hours. Then add an emulsifier and continue to stir evenly, and finally add water to make up to 100kg, and stir for 1.5 hours to make it a homogeneous and transparent solution product.

technical field

[0001] The invention belongs to the field of new formulations of pesticides and insecticides, and relates to a semi-synthetic biological insecticide and acaricide starting from the biologically fermented pesticide abamectin, i.e. emamectin benzoate Microemulsions and methods for their preparation. Background technique

[0002] Emamectin benzoate has a very high activity on the larvae of Lepidoptera insects and other pests and mites, and has a remarkable stomach poisoning effect and good contact killing effect. It has the advantages of super high efficiency, long-lasting effect, and high safety to all crops and beneficial insects. It has a good medicinal effect at a lower dosage. Compared with the application of the original parent avermectin, the insecticidal effect is increased by 10 to 100 times. There are already several factories in China producing emamectin benzoate, and its dosage form is mostly emulsifiable concentrate. The production of emulsifiab...

Examples

example 1

[0019] Emamectin benzoate technical 2kg; toluene 5kg; isopropanol 2kg; emulsifier 10kg. Firstly, toluene and isopropanol are added into a reaction kettle with a stirrer and mixed evenly, then the original medicine of emamectin benzoate is added and mixed and stirred for 1.5 hours. Then add an emulsifier and continue to stir evenly, and finally add water to make up to 100kg, and stir for 1.5 hours to make it a homogeneous and transparent solution product.

example 2

[0021] Emamectin benzoate technical 1kg; Propyl acetate 2kg; Isobutanol 5kg; Emulsifier 15kg. First add propyl acetate and isobutanol to the reaction kettle with a stirrer and mix evenly, add the original medicine of emamectin benzoate and mix and stir for 1.5 hours, then add the emulsifier and continue to stir evenly, and finally Add water to make up to 100kg, and stir for 1.5 hours to make it a homogeneous and transparent solution product.

example 3

[0023] Emamectin benzoate technical 0.2kg; propyl acetate 1kg; ethylene glycol 3kg; emulsifier 10kg. First, propyl acetate and ethylene glycol are added into a reaction kettle with a stirrer and mixed evenly, then the original drug of emamectin benzoate is added and mixed and stirred for 1.5 hours. Then add an emulsifier and continue to stir evenly, and finally add water to make up to 100kg, and stir for 1.5 hours to make it a homogeneous and transparent solution product.