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Fungicidal composition containing penthiopyrad fungicide and application of fungicidal composition

The technology of penthiopyrad and bactericide is applied in the field of fungicidal compositions, which can solve the problems such as the decline of drug efficacy, and achieve the effects of prolonging service life, obvious synergistic effect and good synergistic effect.

Inactive Publication Date: 2015-04-29
SHENYANG SINOCHEM AGROCHEMICALS R&D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The history of fungicide use shows that long-term repeated use of the same type of fungicide can easily cause some strains of the disease to develop resistance, and the efficacy of the fungicide will be significantly reduced.

Method used

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  • Fungicidal composition containing penthiopyrad fungicide and application of fungicidal composition
  • Fungicidal composition containing penthiopyrad fungicide and application of fungicidal composition
  • Fungicidal composition containing penthiopyrad fungicide and application of fungicidal composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 control wheat powdery mildew test

[0051] Potted wheat seedlings at the two-leaf stage of the variety "Liaochun 15" were sprayed with an aqueous solution of active components (concentrations are as follows). After 24 hours, the spores of wheat powdery mildew fungus were shaken off on the wheat leaves and placed in the greenhouse. Cultivate, and measure the development degree of pathogen infection on the leaves after 7 days.

[0052] See Table 1 and Table 2 for the activity data results of each individual active component and the composition of the present invention for preventing and treating wheat powdery mildew. The results show that the observed potency values ​​of the composition are all greater than the calculated potency values, and the composition exhibits a synergistic effect within the test proportion range.

[0053] Table 1 The activity of individual active components

[0054]

[0055] Table 2 Activity of compositions of the present inventio...

Embodiment 2

[0058] Embodiment 2 control cucumber scab test

[0059] This test adopts the spore germination method, that is, according to the designed concentration, take a high-concentration drug solution and mix it with the spore suspension to obtain the drug-spore suspension, and add it to a 96-well culture plate, and then place it in an incubator (24 ° C ± 1°C), and investigate after 4h. The spore germination inhibition rate of the composition and each individual active ingredient was obtained according to the following formula. Composition interaction analysis uses the Colby formula described above.

[0060]

[0061] See Table 3 and Table 4 for the activity data results of each individual active component and the composition of the present invention for controlling cucumber scab. The results show that the observed potency values ​​of the composition are all greater than the calculated potency values, and the composition exhibits a synergistic effect within the test proportion ran...

Embodiment 3

[0067] Embodiment 3 control corn rust test

[0068] Potted two-leaf corn seedlings of the variety "Jinhuangnuo" were sprayed with an aqueous solution of active components (concentrations are as follows), and after 24 hours, the spore suspension of corn rust fungus was inoculated on the corn leaves, and then placed at temperature Cultivate in a climate chamber at 23±2°C and a relative humidity of 90±5%. After 24 hours, move it into the greenhouse for normal management. After 6 days, the degree of development of the fungal infection on the leaves was determined. See Table 5 and Table 6 for the activity data results of each individual active component and the composition of the present invention against corn rust. The results show that the observed potency values ​​of the composition are all greater than the calculated potency values, and the composition exhibits a synergistic effect within the test proportion range.

[0069] Table 5 Activity of individual active ingredients

...

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Abstract

The invention belongs to the field of agricultural fungicides, and in particular relates to a fungicidal composition containing penthiopyrad fungicide and methoxy acrylics fungicide and application of the fungicidal composition. The composition comprises an A active ingredient and a B active ingredient in a weight ratio of (1:100)-(100:1); the ingredient A is selected from fungicide penthiopyrad with a structural formula as shown in the description; the ingredient B is selected from the methoxy acrylics fungicide; the methoxy acrylics fungicide is selected from enestroburin B1, enestroburin B2, pyrametostrobin B3, pyraoxystrobin B4, azoxystrobin B5, kresoxim-methyl B6, pyraclostrobin B7, trifloxystrobin B8, ZJ0712 B9, coumoxystrobin B10, picoxystrobin B11, SYP-7017 B12, SYP-7017 B13 or metominostrobin B14. The fungicidal composition is especially suitable for preventing and controlling various plant pathogenic fungal diseases, such as plant venturia inaequalis, rust disease, scab, early blight, powdery mildew and banded sclerotial blight.

Description

Technical field [0001] The invention belongs to the field of agricultural fungicides, and specifically relates to a fungicidal composition containing a penthiostrobin fungicide and a methoxyacrylate fungicide and its application. Background technique [0002] The new fungicide pyrithiopyramide has high-efficiency and broad-spectrum bactericidal activity. It not only has excellent activity against rust and sclerotinia, but also shows good bactericidal activity against gray mold, powdery mildew and apple scab. Its structural formula is as follows: [0003] [0004] This fungicide is suitable for crops and fruit trees including apples, pears, peaches, citrus, tomatoes, cucumbers, grapes, wheat, rice and lawns, etc. It is mainly used to prevent and control sclerotinia, gray mold, scab, rust, powdery mildew, Sheath blight and early blight, etc. [0005] Methoxyacrylate fungicides are another new type of agricultural fungicides with great market potential after triazole fungi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N43/88A01N43/56A01P3/00A01N37/50A01N43/54A01N37/36A01N43/16A01N43/40
Inventor 陈宣明李志念司乃国赵杰王斌王军锋
Owner SHENYANG SINOCHEM AGROCHEMICALS R&D CO LTD
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