Bactericidal composition

A composition, chlorothalonil technology, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of unfavorable agricultural sustainable development, pathogen resistance, increased drug dosage, etc., and avoid the occurrence of disease resistance. , the effect of improving drug efficacy and reducing production and use costs

Active Publication Date: 2015-07-15
HUNAN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chlorothalonil has no systemic conduction effect, but after spraying on the plant body, it can have good adhesion on the body surface and is not easily washed away by rain, so the drug effect period is longer
[0006] Regardless of whether it is HNPC-A10073, chlorothalonil or other high-efficiency fungicides, long-term use alone can easily cause pathogenic bacteria to develop drug resistance, resulting in increased dosage, reduced control efficacy, and shortened duration of efficacy, resulting in pesticide residues and environmental pollution. , is not conducive to the sustainable development of agriculture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: 50% HNPC-A10073 Chlorothalonil water dispersible granules

[0028] When the present invention is a water-dispersible granule, the weight percentage of each component is: HNPC-A10073 15%; chlorothalonil 35%; dispersant: calcium dodecylbenzenesulfonate 12%; wetting agent: wetting agent Wet penetration agent F 8%; disintegrant: sodium chloride 2%; filler talc 5%; kaolin added to 100%. The specific production steps of the water-dispersible granules are as follows: mix the active ingredient HNPC-Aa10073 with chlorothalonil, dispersant, wetting agent, disintegrating agent and filler uniformly according to the above formula, pulverize with an ultrafine jet mill, knead, Then put it into a fluidized bed granulation dryer for granulation, drying, sieving, and after sampling and analysis, the water-dispersible granule formulation of the composition of the present invention can be prepared.

Embodiment 2

[0029] Example 2: 20% HNPC-A10073 Chlorothalonil Suspension Concentrate

[0030] When the present invention is processed into a suspension, the weight percentage of each component is: HNPC-A10073 7%; chlorothalonil 13%; emulsifier: BY-140 7%, nonylphenol polyoxyethylene ether 8%; solvent : cyclohexanone 6%, methanol 8%; wetting agent: sodium butylnaphthalene sulfonate: 3%; dispersing agent calcium alkylbenzene sulfonate: 3%; antifreeze agent: propylene glycol 1%; thickener: xanthan gum 0.1%; defoamer silicone: 0.1%; deionized water added to 100%. The specific production steps of the suspension are as follows: first mix the above-mentioned components except the active ingredients, and then mix them uniformly through high-speed shearing, then add the active ingredients HNPC-A10073 and chlorothalonil, and grind them in a ball mill for 2- After 3 hours, the particle size of the particles is all below 5 μm, that is, the suspension preparation of the composition of the present inve...

Embodiment 3

[0031] Example 3: 70% HNPC-A10073 Chlorothalonil wettable powder

[0032] When the present invention is a wettable powder, the weight percentage of each component is: HNPC-A10073 20%; chlorothalonil 50%; dispersant: lignosulfonate 8%; wetting agent: pull open powder BX 8% ; Filler: Talc 6%; Kaolin added to 100%. The specific production steps of the wettable powder are as follows: the active ingredient HNPC-A10073 is mixed with chlorothalonil, dispersant, wetting agent and filler, mechanically pulverized, then jet pulverized, and mixed uniformly to produce the composition of the present invention wettable powder formulations. The active ingredient HNPC-A10073 is mixed with chlorothalonil, dispersant, wetting agent and filler, mechanically pulverized and then jet pulverized, and mixed uniformly to prepare the wettable powder preparation of the composition of the present invention.

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PUM

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Abstract

The invention discloses a bactericidal composition. The invention discloses a bactericidal composition composed of HNPC-A10073 containing bactericidal effective ingredients N-((2-chlorothiazole-5-yl)methyl)-N-ethyl-6-methoxy-3-nitropyridine-2-amine and chlorothalonil, the mass proportion of HNPC-A10073 to the chlorothalonil is (1 to 100)-(100 to 1), the weight summation of the effective ingredients, namely the HNPC-A10073 and the chlorothalonil, accounts for 10.1%-70% of the total weight percent of the composition. The bactericidal composition can be processed as a suspending agent, a water dispersible granule, wettable powder, emulsion in water and microemulsion. A large quantity of indoor and outdoor pharmacodynamics tests show that the combination of the HNPC-A10073 and the chlorothalonil is used for preventing and controlling fungus of crops, particularly a plurality of gray molds of flowers, rice, wheat, fruit trees, rapes and vegetable crops; the synergism effect is obvious, the field use amount is greatly reduced, the pesticide residue and environment pollution are reduced, and the production cost and the use coat are lowered.

Description

technical field [0001] The present invention relates to a kind of HNPC-A10073 and A fungicidal composition of chlorothalonil. Background technique [0002] Botrytis cinerea, such as cucumber gray mold and tomato gray mold, is a very widespread and difficult-to-control disease on crops, often causing major losses of crops. According to literature reports, due to monotherapy and other unscientific drug use methods, Botrytis cinerea has developed resistance to commonly used pesticides, and the field control effect of pesticides has dropped significantly. After the emergence of resistance, the increase of spraying amount and frequency of spraying will not only increase the burden on farmers but also cause environmental pollution. Therefore, new fungicides and compositions thereof with high efficiency, low toxicity, environmental protection and no cross-resistance are one of the solutions to this problem. [0003] HNPC-A10073, chemical name N-[(2-chlorothiazol-5-yl)methyl]-N-e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/78A01P3/00A01N37/34
Inventor 何莲李建明欧晓明裴晖易正华雷满香白建军高德良喻快
Owner HUNAN CHEM RES INST
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