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A kind of bactericidal composition containing benthiazoxan and chlorothalonil and application thereof

A technology of benthiazoxan and a composition, which is applied in the field of bactericidal compositions containing benthiazoxan, can solve the problems such as the related research or report on the compounding of benthiazolin and chlorothalonil that is not found, and achieves significant synergy Synergistic effect, maturation of process route, effect of alleviating drug resistance

Active Publication Date: 2017-10-03
JIANGSU SEVENCONTINENT GREEN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no relevant research or report on the compounding of pentothiastrobin and chlorothalonil

Method used

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  • A kind of bactericidal composition containing benthiazoxan and chlorothalonil and application thereof
  • A kind of bactericidal composition containing benthiazoxan and chlorothalonil and application thereof
  • A kind of bactericidal composition containing benthiazoxan and chlorothalonil and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 Drug Efficacy Test of 45% Penthiastrobin Chlorothalonil Suspension Concentrate for Controlling Cucumber Downy Mildew

[0043] Chlorothalonil 40%, Penthiastrobin 5%, Polycarboxylate 2%, EO-PO Block Copolymer 2%, Castor Oil Ethylene Oxide Adduct 2%, Ethylene Glycol 5%, Xanthan Glue 0.1%, magnesium aluminum silicate 1%, benzoic acid 0.5%, defoaming silicone oil 0.4%, water to make up to 100%. After the mixture was fully stirred and mixed according to the above ratio, it was ground by a sand mill to a particle size of about 5 μm to obtain a 45% pentathiostrobin·chlorothalonil suspension.

[0044] The preparation was diluted 750 times and sprayed, sprayed at the early stage of the disease, the active ingredient dosage per mu was 10g, and the medicine was applied once every 7 days, and the medicine was applied 3 times in total. The disease index was investigated and the control effect was calculated 7 days and 14 days after the last medicine. . The control effects...

Embodiment 2

[0046] Example 2 Drug efficacy test of 60% benzothiastrobin · chlorothalonil water dispersible granules for controlling cucumber downy mildew

[0047] Chlorothalonil 50%, Penthiastrobin 10%, Sodium Lauryl Sulfonate 1%, Lignosulfonate 2%, Alkyl Naphthalene Sulfonate 3%, EO-PO Block Copolymer 2%, Polyethylene glycol 4%, calcium chloride 2%, filler bentonite make up 100%. The mixture is fully stirred according to the above ratio, pulverized by a jet mill, kneaded, granulated and dried to obtain water-dispersible granules.

[0048] The preparation was diluted 1000 times and sprayed, sprayed at the early stage of the disease, the active ingredient dosage per mu was 10g, and the medicine was applied once every 7 days, and the medicine was applied 3 times in total. The disease index was investigated and the control effect was calculated 7 days and 14 days after the last medicine. . The control effects on cucumber downy mildew were 93.05% and 90.28% after 7 days and 14 days after spra...

Embodiment 3

[0049] Example 3 Drug efficacy test of 50% benzothiastrobin · chlorothalonil water dispersible granules in the control of cucumber downy mildew

[0050] Chlorothalonil 25%, Penthiastrobin 25%, Dodecyl Sulfonate 2%, Sodium Lignosulfonate 5%, Alkyl Naphthalene Sulfonate 3%, EO-PO Block Copolymer 3%, Corn starch 4%, calcium chloride 2%, filler bentonite make up 100%. The mixture is fully stirred according to the above ratio, pulverized by a jet mill, kneaded, granulated and dried to obtain water-dispersible granules.

[0051] The preparation was diluted 833 times and sprayed, sprayed at the early stage of the disease, the active ingredient dosage per mu was 10g, and the medicine was applied once every 7 days, and the medicine was applied 3 times. The disease index was investigated and the control effect was calculated 7 days and 14 days after the last medicine. . The control effects on cucumber downy mildew were 90.70% and 87.85% after 7 days and 14 days after spraying.

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Abstract

The invention relates to a bactericidal composition, which is composed of an active ingredient and an auxiliary ingredient of a pesticide preparation, in particular, the active ingredient is composed of chlorothalonil and benzathystrobin at a weight ratio of 0.05-60:1. In the present invention, pentothiastrobin and chlorothalonil are compounded within a certain proportion range. Firstly, a very significant synergistic effect is achieved, which has a concurrent effect on frequently-occurring crop diseases, reduces the frequency of spraying, and saves costs; Second, the two active ingredients in the fungicidal composition are two types of fungicides with different mechanisms of action, which expands the control spectrum and slows down the generation of drug resistance; third, because the synthetic process route of chlorothalonil in the composition is mature , high production capacity and cheap price, therefore, the production cost is reduced and resources are saved by compounding with benzathystrobin on the premise of ensuring the efficacy of the drug.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a bactericidal composition containing fenthiastrobin and its application. Background technique [0002] Penthiastrobin is a methoxyacrylate fungicide, and its mechanism of action is to inhibit mitochondrial respiration. It is an environmentally friendly fungicide with high efficiency, broad spectrum and low toxicity. Penthiostrobin is a therapeutic fungicide, which is mainly applied after the plant is infected. It can quickly penetrate and systemically absorb into the plant, and directly kill the pathogenic bacteria that have invaded the plant. Due to its good protection, treatment, and eradication bactericidal effects, benzothiastrobin has good effects on powdery mildew, stripe rust, downy mildew, leaf spot, rice blast, and sheath blight on fruit trees, vegetables, and cereal crops. prevention effect. [0003] Chlorothalonil is a broad-spectrum protective fungicide, which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/78A01P3/00A01N37/34
Inventor 高明钱海宾龚建华褚小静
Owner JIANGSU SEVENCONTINENT GREEN CHEM CO LTD
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