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Imidacloprid oil solution and use thereof

A technology of imidacloprid oil preparation and imidacloprid, which is applied in the field of pesticides, can solve the problems of low concentration and the like, and achieves the effects of good safety, stable field control effect and convenient processing.

Inactive Publication Date: 2008-07-16
INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

4. Low concentration

Method used

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  • Imidacloprid oil solution and use thereof
  • Imidacloprid oil solution and use thereof
  • Imidacloprid oil solution and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of 1.0% imidacloprid oil

[0036] First take the following raw materials by weight:

[0037] Active ingredient imidacloprid: 1.0%,

[0038] Isopropanol: 10.0%,

[0039] Dimethylformamide 15%,

[0040] Ethylene Glycol: Add to 100%.

[0041] Add the active ingredient imidacloprid into isopropanol and heat at 50°C in the reaction kettle, stir for 1 hour to dissolve, then add dimethylformamide and ethylene glycol, stir for 1 hour and cool down to 30°C, filter to remove the residue and get the product.

[0042] The appearance of the obtained imidacloprid oil is a transparent uniform oily liquid; the low temperature compatibility is good, and at -5 ° C, no sediment or suspended matter is refrigerated for 48 hours; the volatility is low, and the volatility of the filter paper suspension method should not be greater than 30%, good plant safety, determined by the open-hole method, the flash point is greater than 40°C (for ground use); the kinematic viscosity (20°...

Embodiment 2

[0044] Preparation of 2.0% imidacloprid oil

[0045] First take the following raw materials by weight:

[0046] Active ingredient imidacloprid: 2.0%,

[0047] Benzyl alcohol: 5.0%,

[0048] Dimethylformamide 15%,

[0049] Ethylene Glycol: Add to 100%.

[0050] Add the active ingredient imidacloprid into benzyl alcohol and heat at 45°C in a reaction kettle, stir for 1.5 hours to dissolve, add dimethylformamide and ethylene glycol, stir for 1 hour and cool down to 20°C, filter to remove the residue and obtain the product.

[0051] The appearance of the obtained imidacloprid oil is a transparent uniform oily liquid; the low temperature compatibility is good, and at -5 ° C, no sediment or suspended matter is refrigerated for 48 hours; the volatility is low, and the volatility of the filter paper suspension method should not be greater than 30%, good plant safety, determined by the open-hole method, the flash point is greater than 40°C (for ground use); the kinematic viscosity ...

Embodiment 3

[0053] Preparation of 5.0% imidacloprid oil

[0054] First take the following raw materials by weight:

[0055] Active ingredient imidacloprid: 5.0%,

[0056] Benzyl alcohol: 1.0%,

[0057] Dimethylformamide: 22.0%,

[0058] Ethylene Glycol: Add to 100%.

[0059] Add the active ingredient imidacloprid into benzyl alcohol and heat at 40°C in a reaction kettle, stir for 2 hours to dissolve, then add dimethylformamide and ethylene glycol, stir for 0.5 hours and cool down to 23°C, filter to remove the residue and get the product.

[0060]The appearance of the obtained imidacloprid oil is a transparent uniform oily liquid; the low temperature compatibility is good, and at -5 ° C, no sediment or suspended matter is refrigerated for 48 hours; the volatility is low, and the volatility of the filter paper suspension method should not be greater than 30%, good plant safety, determined by the open-hole method, the flash point is greater than 40°C (for ground use); the kinematic visco...

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Abstract

The invention discloses an oil solution of imidacloprid which comprises the following constituents (by weight portions): imidacloprid 0.5-15.5%, stabilizer 1-25%, and balancing dissolvent. The stabilizer being phenylcarbinol and / or isopropanol. The solution can be used for controlling grasshopper and Locusta migratoria manilensis (Meyen).

Description

technical field [0001] The invention relates to an oil agent containing imidacloprid active ingredient and its application, belonging to the field of pesticides. Background technique [0002] Imidacloprid (imidacloprid) is a new type of high-efficiency systemic insecticide, which was developed by German Bayer in the mid-1980s and put on the market in 1991. At present, imidacloprid has been used on 60 kinds of crops in more than 80 countries, and it has a very good control effect on piercing-sucking mouthpart pests such as aphids, leafhoppers and coleopteran pests. Imidacloprid acts on insect nicotinic acetylcholine receptors, interferes with the stimulation conduction of the insect nervous system, and causes blockage of neural pathways. This blockage creates a buildup of the important neurotransmitter acetylcholine, which leads to paralysis and eventual death of the insect. Pests resistant to most of today's insecticides (organophosphates, carbamates, and pyrethroids) are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/42A01N25/02A01P7/04
Inventor 高占林潘文亮党志红李耀发安建辉
Owner INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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