Seed coating agent for controlling flea beetle and Ceutorrhynchus asperRoel. for oilseed rape

A technology of flea beetle and rapeseed, which is applied in the field of crop seed coating preparations, can solve the problems of environmental pollution, unfriendly environment, high production cost, etc., and achieve the effect of convenient use, environmental friendliness and low cost

Inactive Publication Date: 2018-03-06
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the prior art, 70% fipronil is made into dispersive seed coating agent and 20% fipronil suspension seed coating agent, but the single use of fipronil is not effective in preventing the harm of rape flea beetle and stem weevil. Obviously, the hazards of rape flea beetle and stem weevil cannot be effectively controlled, and in the prior art, fipronil is also used in combination with other insecticides, but they are all sprayed and used, and the pesticide management regulations have been clearly defined It is stipulated that fipronil is not allowed to be sprayed, which is not friendly to the environment. Generally, the EC formulation is to mix the insecticide of the EC with water in a certain proportion, and then spray it, and it is also made into an EC and a suspension. The reason for the high quality is that the seeds are not fully absorbed after seed dressing, and the distribution of the agent is uneven during the seed dressing process. The emulsifiable concentrate usually contains 60% to 90% organic solvents such as xylene or toluene, and the production cost is relatively high. In the process of storage and transportation, accidents such as combustion, explosion, and poisoning are also more likely to occur. During use, it is easy to pollute the environment and have a high risk to animals and plants. It has no obvious effect on preventing the damage of rape flea beetle and stem weevil.

Method used

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  • Seed coating agent for controlling flea beetle and Ceutorrhynchus asperRoel. for oilseed rape
  • Seed coating agent for controlling flea beetle and Ceutorrhynchus asperRoel. for oilseed rape
  • Seed coating agent for controlling flea beetle and Ceutorrhynchus asperRoel. for oilseed rape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A seed coating agent for controlling rape flea beetle and stem weevil, which consists of the following components in weight percent: chlorpyrifos 30%, fipronil 3%, alkylphenol ether sulfosuccinate sodium salt 3%, EO-PO Block surfactant 15%, n-butanol 1.5%, xylene 13.5%, dimethylformamide 4.5%, xanthan gum 0.4% and water 29.1%.

[0029] A preparation method for preventing and treating rape flea beetle and stem weevil seed coating agent, comprising the following steps:

[0030] The content of each of the following components is calculated by weight percentage

[0031] Step 1: Mix 3% sodium alkylphenol ether sulfosuccinate, 15% EO-PO block type surfactant and 29.1% water, and stir evenly;

[0032] Step 2: Add 1.5% n-butanol to Step 1, referred to as the water phase for later use;

[0033] Step 3: mix 30% chlorpyrifos and 3% fipronil with 13.5% xylene and 4.5% dimethylformamide mixed solution, referred to as the oil phase, and set aside;

[0034] Step 4 Stir the water ph...

Embodiment 2

[0037] A seed coating agent for controlling rape flea beetle and stem weevil, which is composed of the following components in weight percent: chlorpyrifos 30%, fipronil 5%, alkylphenol ether sulfosuccinate sodium salt 4%, EO-PO Block surfactant 16%, n-butanol 2%, xylene 15%, dimethylformamide 5%, xanthan gum 0.5% and water 22.5%.

[0038] A preparation method for preventing and treating rape flea beetle and stem weevil seed coating agent, comprising the following steps:

[0039] The content of each of the following components is calculated by weight percentage

[0040] Step 1 Mix 4% alkylphenol ether sulfosuccinate sodium salt, 16% EO-PO block type surfactant and 22.5% water, and stir evenly;

[0041] Step 2 adds 2% n-butanol to step 1, referred to as the water phase for short;

[0042] In step 3, mix 30% chlorpyrifos and 5% fipronil with 15% xylene and 5% dimethylformamide, which is referred to as the oil phase and set aside;

[0043]Step 4 Stir the water phase at 120r / mi...

Embodiment 3

[0046] A seed coating agent for controlling rape flea beetle and stem weevil, which consists of the following components in weight percent: chlorpyrifos 34.3%, fipronil 5.7%, alkylphenol ether sulfosuccinate sodium salt 6.3%, EO-PO Block surfactant 15.7%, n-hexanol 2.5%, xylene 17.6%, dimethylformamide 4.4%, xanthan gum 0.6% and water 12.9%.

[0047] A preparation method for preventing and treating rape flea beetle and stem weevil seed coating agent, comprising the following steps:

[0048] The content of each of the following components is calculated by weight percentage

[0049] Step 1 Mix 4.4% alkylphenol ether sulfosuccinate sodium salt, 17.6% EO-PO block type surfactant and 12.9% water, and stir evenly;

[0050] Step 2: Add 2.5% n-hexanol to Step 1, referred to as the water phase for later use;

[0051] Step 3 mix 34.3% chlorpyrifos and 5.7% fipronil with 17.6% xylene and 4.4% dimethylformamide mixed solution, referred to as oil phase, set aside;

[0052] Step 4 Stir t...

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PUM

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Abstract

The invention relates to a preparation for crop seed coating treatment, more specifically to a special microemulsion-type seed coating agent for controlling harms of flea beetle and Ceutorrhynchus asperRoel. for oilseed rape. The special microemulsion-type seed coating agent for controlling harms of flea beetle and Ceutorrhynchus asperRoel. for oilseed rape is composed of the following ingredients(by weight): 29-34.3% of chlopyrifos, 3-5.7% of fipronil, 18-22% of mixed surfactants, 1-3% of a cosurfactant, 18-22% of a cosolvent, 0.4-0.6% of a film forming agent and the rest of water. The invention has the following beneficial effect: the special microemulsion-type seed coating agent for controlling harms of flea beetle and Ceutorrhynchus asperRoel. for oilseed rape has high drug effect, islow-cost, is environmentally friendly, is convenient to use, has low dosage of fipronil, and can delay drug resistance.

Description

technical field [0001] The invention relates to a preparation for coating treatment of crop seeds, in particular to a seed coating agent for preventing and controlling rape beetle and stem weevil. Background technique [0002] The outbreak of rape seedling pests is one of the most serious factors for the loss of rapeseed. Therefore, paying attention to the control of seedling pests is an important measure to maintain and increase rapeseed production. Generally, methods such as chemical seed dressing, soil treatment, and field spraying are used. For prevention and control, chemical seed dressing is an effective method for controlling seedling pests at present. [0003] Seed coating technology is a high-tech agricultural technology, which can coat pesticides, growth regulators, micro-fertilizers and other active ingredients in the coating film formed on the surface of seeds, and release them slowly during seed germination and growth, effectively preventing and controlling seed...

Claims

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Application Information

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IPC IPC(8): A01N57/16A01N47/02A01N25/04A01P7/04
CPCA01N25/04A01N47/02A01N57/16
Inventor 王瑞生杜德志唐国永柳海东余青兰付忠
Owner QINGHAI UNIVERSITY
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