Pesticide composition and preparation thereof

A technology of insecticidal composition and suspended seed coating, applied in the direction of insecticide, biocide, animal repellent, etc., can solve the risk of increasing insecticide antagonism, poor control effect of planthopper and whitefly, and In order to achieve the effect of expanding the spectrum of insect control, improving the efficacy and reducing the types of use

Active Publication Date: 2012-01-25
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, thiamethoxam is ineffective against some coleopteran pests such as wireworms, and is less effective against some homopteran pests such as leafhoppers
[0005] Fipronil is a phenylpyrazole insecticide, which can be used for seed treatment and foliar spraying. It has a wide insecticidal spectrum. It mainly has stomach poisoning effect on pests, and has both contact and certain systemic effects. , which can effectively control corn root beetle, wire needle and cutworm when applied to the soil, but has poor control effect on planthopper and whitefly
[0006] Due to the above problems, crop seeds need to be treated with a variety of insecticides, which increases the risk of antagonism between various insecticides, so it is of great significance to provide a high-efficiency, broad-spectrum suspension seed coating agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Disease control effect test

[0030] The test was carried out in a wheat field of a farmer in Zhengzhou, Henan Province. The suspension seed coating agent is a seed coating agent compounded with fipronil and thiamethoxam as the active ingredients. Coating agent, each suspended seed coating agent test seeds and test environment are all the same, the test treatment and application rate are shown in Table 1, and the control effects are shown in Table 2.

[0031] Table 1 Test treatment and application rate

[0032] deal with

[0033] Among them, the calculation formula is as follows:

[0034]Insect population reduction rate = [(the number of live insects before the drug - the amount of live insects after the drug) ÷ the amount of live insects before the drug] × 100%

[0035] Control effect = [(reduction rate of insect population in spraying area-reduction rate of insect population in control area)÷(1-reduction rate of insect population in control ...

Embodiment 2

[0039] Embodiment 2: 10% fipronil·thiamethoxam suspension seed coating (both are mass fractions)

[0040] Fipronil 3.0%, Thiamethoxam 7.0%, YUS-FS30003.0%, YUS-TXC 1.0%, PICO-NW11.0%, Ethylene Glycol 5.0%, PVA 17-884.0%, Xanthan Gum 0.2%, 0.3% of defoaming agent, 0.3% of sodium benzoate, 1.0% of basic rhodamine, distilled water added to 100%.

[0041] Dissolve YUS-FS3000, YUS-TXC, and PICO-NW1 completely in distilled water, then add the active ingredients of fipronil, thiamethoxam, and other additives that have been pulverized by airflow, and grind them twice in a sand mill until they become a suspension The particle fineness reaches D 50 2-3μm, D 90 <8μm to get the product.

[0042] Comparing the suspension seed coating preparation prepared in this example with each single agent, the amount of each active ingredient is used as the standard calculation, under the premise that the amount of each active ingredient of the suspension seed coating agent of the present invention ...

Embodiment 3

[0043] Embodiment 3: 20% fipronil · thiamethoxam suspension seed coating (both are mass fractions)

[0044] Fipronil 5.0%, Thiamethoxam 15.0%, DA-6752.5%, DA-6462.5%, Defoamer 0.3%, Xanthan Gum 0.2%, Sodium Benzoate 0.1%, PVP-K303%, FGR-1312%, distilled water Add to 100%.

[0045] Put fipronil and thiamethoxam through jet crushing, wetting and dispersing agent, film forming agent, coloring agent, thickener, antifreeze, preservative, defoamer and water are completely dissolved, and put into a sand mill in proportion to grind 2 times until the particle fineness of the suspension reaches D 50 2-3μm, D 90 <8μm, the product is obtained.

[0046] Comparing the suspension seed coating preparation prepared in this example with each single agent, the amount of each active ingredient is used as the standard calculation, under the premise that the amount of each active ingredient of the suspension seed coating agent of the present invention is less than or equal to the amount of each ...

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PUM

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Abstract

The invention relates to the field of pesticide preparations, and discloses a pesticide composition and the preparation thereof. The pesticide composition provided by the invention consists of diflufenican and thiamethoxam the mass ratio of which is (2-20):(5-30). A suspension seed dressing provided by the invention comprises: 2-20% of diflufenican, 5-30% of thiamethoxam, 1-8% of wetting dispersion agent, 0.5-10% of film-forming agent, 1-10% of coloring agent, 0.1-2% of thickening agent, 1-5% of anti-freezing agent, 0.1-1% of antiseptic agent, 0.1-1% of defoaming agent, and the balance of distilled water. According to the invention, the complex diflufenican and thiamethoxam acts as the active ingredient of the suspension seed dressing, the advantages of diflufenican and thiamethoxam are complementary, the insect prevention spectrum of the medicaments can be expanded, the pesticide effect is improved simultaneously, multiple insect damages can be prevented and treated by medicament use once, the using amount, types and times of the pesticide are reduced, and the pesticide composition and the preparation can be widely used in the agricultural filed.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to an insecticidal composition and its preparation. Background technique [0002] In modern agricultural production, the use of seed coating agents to treat seeds is one of the most economical and convenient methods to prevent and control underground pests and crop soil-borne and seed-borne diseases. A seed coating is a pesticide formulation used for the treatment of crop or other plant seeds with film-forming properties that solidify on the surface of the seed to form a film called a seed coat. The seed coating agent absorbs water and swells in the soil without being dissolved, allowing the water and air required for normal germination of the seeds to pass through, and the contained pesticides and seed fertilizers are slowly released, which can kill underground pests and seedling pests, and has the function of preventing and controlling seedlings. It has the effects of preven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N47/02A01N25/04A01P7/04
Inventor 王洲卢桂鲜
Owner LIANBAO CROP TECH
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