Aju water dispersion granule and production method thereof

A technology of additives and emulsifiers, applied in the field of new pesticide formulations, can solve the problems of dust pollution, poor control, and difficulty in ensuring stability, etc.

Inactive Publication Date: 2005-11-16
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic solvent content of the above-mentioned ECs is as high as 90%. The widespread use of ECs causes organic solvents to pollute the environment, and on the other hand, it also wastes valuable organic resources. Dust pollutes the environment during the production of wettable powders, especially wettable powders Suspension rate is generally around 70%, which affects the efficacy of the drug. Microemulsion is a new formulation with water as the medium. However, in addition to adding about 20% of emulsifier, it also needs to add 30% of cosolvent and stabilizer. The sum of them accounts for more than 50% of the whole preparation, and the manufacturing technology has certain requirements, and the stability is difficult to guarantee if it is not well mastered.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 0.5-2% Achrysanthemum (abamectin-beta-cypermethrin water-dispersible granule pesticide preparation (calculated by weight percentage):

[0035] Abamectin: 0.05-1%;

[0036] Beta-cypermethrin: 0.05-5%;

[0037] Auxiliary A, for example, choose one of benzene, toluene, and xylene, and the addition amount is 1-5%;

[0038] Emulsifier, such as Nongru 0203 or Tween 60 or Tween 80 and calcium dodecylbenzenesulfonate mixed milk, addition amount: 1-5%;

[0039] Carrier chemical fertilizer, for example, choose from urea or total nitrogen type mixed fertilizer composed of urea and ammonium chloride or urea and ammonium sulfate, adding amount: 70-95%.

[0040] It is processed into granules according to the adsorption method and coating method.

[0041] (6) Quality inspection: according to the national standard for compound pesticides (the same below).

Embodiment 2

[0043] The preparation of 4-6% Achrysanthemum (abamectin-beta-cypermethrin) water-dispersible granule pesticide (calculated by weight percentage):

[0044] Abamectin: 0.5-3%;

[0045] Beta-cypermethrin: 1-7%;

[0046] Auxiliary A: For example, choose one of the mixed auxiliaries composed of toluene and dimethyl sulfoxide or xylene and N, N-dimethylformamide, the addition amount: 2-7%;

[0047] Emulsifier, for example, choose one of the mixed emulsifiers composed of Nongru 0203, Tween 60 or Tween 80 and Span-40 or Span-80, adding amount: 5-7%;

[0048] Auxiliary B, for example, choose one of diatomaceous earth or starch, adding amount: 1-2%

[0049] The carrier chemical fertilizer is prepared according to the following method: calculated by pure N, phosphorus pentoxide and potassium oxide=1:0.5:1 or 1:1:1, and the addition amount is 70-95%.

[0050] Granulation and quality inspection methods are the same as in Example 1.

Embodiment 3

[0052] 8-10% Abamectin-beta-cypermethrin water-dispersible granule (by weight percentage), calculates by 100 kilograms of preparation products:

[0053] Abamectin: 2-5% (2-5 kg);

[0054] Beta-cypermethrin: 2-8% (2-8 kg);

[0055] Auxiliary A, choose one of the mixed auxiliaries composed of toluene, toluene and dimethyl sulfoxide, tert-butanol and dimethyl sulfoxide, the addition amount: 3-7% (3-7 kg);

[0056]Auxiliary B, choose one of diatomaceous earth, sodium lignosulfonate, kaolin, addition amount: 1-3% (1-3 kg);

[0057] Emulsifier, for example, choose one of Nongru 0203, Tween 60 or Tween 80 and calcium dodecylbenzenesulfonate or sodium dialkylsuccinate benzenesulfonate mixed emulsifier, the addition amount: 7-10% (7-10 kg);

[0058] The carrier chemical fertilizer is prepared according to the following method: in terms of pure N, phosphorus pentoxide and potassium oxide=1:0.5:1 or 1:0.5:1.5, addition amount (weight percentage): 70-95%.

[0059] Granulation and qual...

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PUM

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Abstract

The invention is a mixed pesticide combination of Avermectin and high-efficiency cyper- methrin. Its character: using fertilizer as carrier, and adding in assistant and emulsor to prepare into water granule with pesticide and fertilizer integrated; its components (wt%): Avermectin 0.05-5%; assistant A 1-10% and B 0.01-3%; emulsor 1-12%; fertilizer carrier 70-95%.

Description

technical field [0001] The invention belongs to the technical field of compound pesticides, and in particular relates to a new pesticide dosage form prepared by using abamectin and beta-cypermethrin and a production method thereof. Background technique [0002] Avermectin (avermectn) is a macrolide insecticidal antibiotic with high efficiency and broad-spectrum acaricidal and insecticidal activities. It has stomach poisoning and contact killing effects on mites and insects. It has strong permeability and can be sprayed with liquid Rapidly infiltrate into the mesophyll on the leaf surface to form numerous microscopic sacs. Adults and nymphs of mites and larvae of insects will immediately appear paralyzed after feeding and contacting the liquid medicine, do not move, do not feed, and die after 2-4 days .There is very little medicine left on the leaves, and it is quickly decomposed into non-toxic substances, so it is less lethal to natural enemies. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N53/08
Inventor 谢九皋张国安
Owner HUAZHONG AGRI UNIV
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