Agricultural chemical able to be diffused along water surface in molecular mode

A pesticide formulation, molecular technology, applied in biocides, animal repellents, plant growth regulators, etc., can solve problems such as harmful aquatic organisms, waste, and harm aquatic organisms, and achieve high efficiency.

Inactive Publication Date: 2004-10-27
JINZE FINE CHEM FUJIAN PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the active ingredient is water-soluble, it will gradually dissolve and disperse in the entire water body due to the concentration difference diffusion. However, in order to ensure the control effect on pests, the entire water body must reach a certain effective concentration, which causes waste. At the same time, it is extremely harmful to aquatic organisms, people, and animals and constitutes a hazard to the environment and ecology (pesticides have varying degrees of toxicity); if the active ingredients of the pesticide are insoluble or insoluble in water, the effective ingredients carried on the solid carrier It is extremely difficult for the ingredients to maintain an effective concentration and be evenly distributed in the water
4. It belongs to the film spreading oils of pesticides, in which the active ingredients are dissolved in solvent oil (which is also the carrier), and are generally insoluble in water. Its dispersion on the water surface depends entirely on the spreading of the carrier oil. To make it molecularly dispersed on the water surface, the only way to ensure the long-term stability of the carrier oil on the water surface is to consume a large amount of solvent oil, and it will also affect the reoxygenation of the water body and harm aquatic organisms; if the solvent oil is volatilized or cannot If it is stable for a long time, the active ingredients will crystallize and aggregate into solid particles due to their poor water solubility (or insolubility), and it is difficult to disperse evenly in molecular form, and it is also difficult to maintain the effective concentration in water
[0008] According to relevant information, there are no reports about pesticide preparations that can make the active ingredients of pesticides diffuse along the water surface at high speed in the form of molecules.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) First, 10.0 g of Buprofezin technical substance and 100 ml of xylene were stirred and dissolved at a temperature of 40-50° C. to form a homogeneous system;

[0021] (2) Gradual addition of alkyl dimethyl benzyl ammonium 0.2ml, sorbitan monolaurate (R-COOC 6 h 8 O(OH) 3 , where R is C 11 h 23 ) 1.2ml, under reflux condensation, process for 40min with a shear mixer with a linear velocity above 700m / sec, until homogeneous and clear, and stable for a long time.

[0022] The preparation can quickly spread along the water surface when it is dropped into water, and ensure that the active ingredients in it do not aggregate for a long time and are evenly distributed on the water surface in a molecular form, and can also automatically climb and cover the outer walls of the stems of aquatic plants, which has a good control of rice planthoppers. Effect.

Embodiment 2

[0024] (1) 4.2 g of pyrithione and 100 ml of xylene were stirred and dissolved at a temperature of 40-50° C. to form a homogeneous system;

[0025] (2) Put 0.7ml and 0.8ml of A and B into the above system, and use the same process as in Example 1 to make a homogeneous liquid.

[0026] The preparation has the same diffusion, uniform distribution and climbing performance as in Example 1, and has a good control effect on rice gall midges.

Embodiment 3

[0028] (1) Each 7g and 8g of chlorpyrifos and buprofezin, 100ml of xylene are processed into a homogeneous system with the same process as the example;

[0029] (2) Add 0.9ml and 1.2ml of A and B respectively in steps, and use the same process as Example 1 to process into a clear homogeneous liquid.

[0030] The preparation has the same diffusion, uniform distribution and climbing performance as in Example 1, and can simultaneously control rice planthoppers and rice gall midges.

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PUM

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Abstract

A pesticide capable of evenly and stably distributed on the surface of water in its molecular state is disclosed. It can retain very high concentration and can reach the top of plant along stem. It is convenient to apply the pesticide by dripping instead of spraying. Meanwhile it has the characteristics of shooting pesticide to the insect on the leaves and inside the stem.

Description

technical field [0001] The invention relates to a pesticide for eliminating pests in agricultural production, in particular to a new pesticide dosage form which can make the active ingredients of the pesticide with a specific molecular structure diffuse and uniformly distribute along the water surface at high speed and climb along the stem of the plant. Background technique [0002] The water surface extensible pesticide formulation can float freely on the surface of the water body, and the active ingredients of the pesticide can effectively prevent and control harmful organisms living on the water surface or on the plants above the water surface through transpiration, penetration and conduction of the plants. Because it has special effects on harmful organisms living on or near the water surface compared with conventional preparations and application methods, many patents and papers on water surface floating agents have been published in Europe, America and Japan in recent y...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/00A01N25/02
Inventor 蔡伟民
Owner JINZE FINE CHEM FUJIAN PROV
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