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A kind of bactericidal composition, bactericide and application method thereof

A technology of fungicides and compositions, applied in the field of fungicide compositions, can solve the problems of the stability of fungicides and the inconspicuous drug synergistic effect, and achieve the effect of strong practicability and uniform texture

Active Publication Date: 2022-01-18
侨昌现代农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the control of P. infestans is not ideal, and the synergistic effect of drugs is not obvious. At the same time, the stability of fungicides for controlling P. infestans has always been a problem

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0053] When the dosage form of the fungicide is water suspension, the preparation method of the fungicide comprises: placing xanthan gum in a solvent, stirring for 20 minutes, adding a fungicide composition, a dispersant and magnesium aluminum silicate and mixing to obtain the finished product.

[0054] In one embodiment, when the dosage form of the bactericide is a dispersible oil suspension, by weight, the bactericide includes 4-40 parts of a bactericidal composition, 10-20 parts of a dispersant, 0.4-0.9 100 parts of thickener, and 100 parts of solvent.

[0055] Preferably, when the formulation of the fungicide is a dispersible oil suspension, by weight, the fungicide includes 32 parts of a fungicide composition, 14 parts of a dispersant, 0.6 parts of a thickener, and 100 parts of a solvent.

[0056] In one embodiment, the dispersant is selected from calcium dodecylbenzenesulfonate, castor oil polyoxyethylene ether, phenethylphenol polyoxyethylene ether, lignosulfonate, poly...

Embodiment 1

[0089]Embodiment 1 of the present invention provides a kind of said bactericidal composition, and it is 4-chloro-2-(1,1-dimethylethyl)-5-[[[4-(1,1-dimethyl ethyl)phenyl]methyl]sulfanyl]-3(2H)-pyridazinone and trifloxystrobin in a weight ratio of 1:1.

[0090] The bactericide is in the form of an aqueous suspension, and it consists of the following components in parts by weight: 4 parts of bactericidal composition, 4 parts of dispersant, 0.89 part of thickener, 0.1 part of preservative, and 100 parts of solvent.

[0091] The dispersant is styrene phenol polyoxyethylene ether sulfate, polycarboxylate and alkylbenzene sulfonate ammonium salt, and its weight ratio is 1:5:5; the styrene phenol polyoxyethylene ether sulfate The acid value is 10mgKOH / g, the saponification value is 90105mgKOH / g, purchased from Jiangsu Haian Petrochemical Plant, the model is XPO-5. The polycarboxylate is Sokalan CP 9, purchased from Guangzhou Yima Technology Co., Ltd. The ammonium salt of alkylbenzen...

Embodiment 2

[0096] Embodiment 2 of the present invention provides a kind of said bactericidal composition, and it is 4-chloro-2-(1,1-dimethylethyl)-5-[[[4-(1,1-dimethyl ethyl)phenyl]methyl]sulfanyl]-3(2H)-pyridazinone and trifloxystrobin in a weight ratio of 4:1.

[0097] The bactericide is in the form of an aqueous suspension, and it consists of the following components in parts by weight: 60 parts of bactericidal composition, 10 parts of dispersant, 1.5 parts of thickener, 0.2 part of preservative, and 100 parts of solvent.

[0098] The dispersant is styrene phenol polyoxyethylene ether sulfate, polycarboxylate and alkylbenzene sulfonate ammonium salt, and its weight ratio is 1:6:6; the styrene phenol polyoxyethylene ether sulfate The acid value is 10mgKOH / g, the saponification value is 90105mgKOH / g, purchased from Jiangsu Haian Petrochemical Plant, the model is XPO-5. The polycarboxylate is Sokalan CP 9, purchased from Guangzhou Yima Technology Co., Ltd. The ammonium salt of alkylben...

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Abstract

The present invention relates to the field of fungicides, more specifically, the present invention relates to a fungicide composition, a fungicide and an application method thereof, the fungicide composition comprising 4-chloro-2-(1,1-dimethylethyl) ‑5‑[[[4‑(1,1‑dimethylethyl)phenyl]methyl]thio]‑3(2H)‑pyridazinone and trifloxystrobin in a weight ratio of (2‑6 ):1. The fungicidal composition provided by the invention can effectively control downy mildew, late blight, blight, damping-off, powdery mildew, rust, anthracnose, root rot, black shank on vegetables, fruits and field crops, especially The control effect on late blight is extremely remarkable; in addition, the bactericide provided by the invention is a nanopesticide with uniform texture, can exist stably in high and low temperature environments, has strong practicability in extreme environments, and is not affected by storage conditions.

Description

technical field [0001] The invention relates to the field of fungicides, more specifically, the invention relates to a fungicide composition, a fungicide and an application method thereof. Background technique [0002] Plant diseases are an important factor for crop yield reduction, so it is necessary to use a large amount of pesticides every year for disease control to recover crop yield loss. In recent years, the harm of diseases to crops has become more and more serious. Due to the abuse of pesticides, pathogenic bacteria have become more and more resistant to pesticides, resulting in a decrease in the control effect year by year. At the same time, due to excessive application of pesticides, a certain degree of pollution to the environment . Therefore, there is an urgent need to develop pesticide varieties with better disease control effects and environmental compatibility. [0003] Phytophthora infestans (Phytophthora infestans) is a kind of oomycete pathogen, which be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/58A01N37/50A01P3/00
CPCA01N43/58A01N37/50
Inventor 李科杜勇马超张双应王兴胜李爽孙广献
Owner 侨昌现代农业有限公司
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