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Novel composition with nematode killing and bacteria killing activities and application thereof

A technology of bactericidal activity and composition, applied in the directions of nematicides, fungicides, biocides, etc., to achieve the effects of good crop safety, significant control effect, and excellent control effect

Inactive Publication Date: 2018-08-03
佛山市普尔玛农化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After searching, the applicant found that there is no combination of compound (E)-2-(ethylthio)-5-(4-fluorostyryl)-1,3,4-oxadiazole and hymexazol in the prior art There are no reports on the combination of the two for the control of nematodes and sclerotinia

Method used

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  • Novel composition with nematode killing and bacteria killing activities and application thereof
  • Novel composition with nematode killing and bacteria killing activities and application thereof
  • Novel composition with nematode killing and bacteria killing activities and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 5% compound 1, 15% hymexazol, 6.7% sodium alkylnaphthalenesulfonate, 3% sodium naphthalenesulfonate, 4.5% dextrin, and add talcum powder to 100% by weight. The above-mentioned raw materials were uniformly mixed in a stirred tank, extruded, granulated, dried, and sieved to obtain 20% compound 1·hymexazol granules.

Embodiment 2

[0034] Weigh 12% compound 1, 12% hymexazol, 6.3% sodium lignosulfonate, 3% sodium alkylsulfonate, 5% polyvinylpyrrolidone, and add kaolin to 100% by weight. The above raw materials were uniformly mixed in a mixing tank, extruded, granulated, dried, and sieved to obtain 24% compound 1·hymexazol granules.

Embodiment 3

[0036] Weigh 15% compound 1, 3% hymexazol, 4.5% sodium alkylnaphthalene sulfonate, 4% sodium lignosulfonate, 1% sodium alkylsulfonate, 1.5% sodium naphthalenesulfonate, add kaolin to 100% parts by weight. 18% compound 1·hymexazol water dispersible granules were prepared by the conventional method for preparing water dispersible granules from the above raw materials, ie, mixing, ultrafine airflow pulverization, mixing and granulation.

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Abstract

The invention relates to a nematode killing and bacteria killing composition containing (E)-2-(ethylthio)-5-(4-fluorostyryl)-1,3,4-oxadiazole and hymexazol and application of the composition. Effective active ingredients comprise the (E)-2-(ethylthio)-5-(4-fluorostyryl)-1,3,4-oxadiazole and the hymexazol, wherein a weight ratio of the first active ingredient to the second active ingredient is in arange of (1:80) to (80:1), preferrably (1:40) to (40:1), further preferrably (1:10) to (10:1), and more preferrably (1:5) to (5:1). The composition can be prepared into agriculturally allowed dosageforms such as granules, water dispersible granules, emulsion in water, wettable powder or suspending agents. The composition has the advantages that the components are reasonable, the control effect on nematode and fungal disease, especially stalk break is good, the nematode killing and bacteria killing activity is not simple addition of the activities of the components, and compared with an existing single preparation, the composition has a remarkable synergistic effect in addition to the remarkable nematode killing and bacteria killing effect, and is good in safety to crops.

Description

technical field [0001] The application relates to an insecticidal and fungicidal composition containing a styrene-based 1,3,4-oxadiazole sulfide compound and hymexazol and its use in preventing and controlling nematodes and fungal diseases. Background technique [0002] Nematodes belong to the nematode class Nematodes, which are serious hazards. There are about 3,000 species of nematodes that are harmful to plants. Most of them live in the soil, and some also parasitize in plants. Nematodes spread through soil or seeds and can damage the root system of plants; directly eating plants can greatly reduce the absorption of nutrients and water by plants, and nematodes eating plants cause wounds and facilitate the invasion of plant pathogens. Fungal and bacterial diseases caused by microorganisms, such as fusarium wilt, damping-off, root rot, soft rot and other root diseases. [0003] Compound (E)-2-(ethylthio)-5-(4-fluorostyryl)-1,3,4-oxadiazole has the following structural form...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N43/80A01P3/00A01P5/00
CPCA01N43/80A01N43/82
Inventor 叶宇平杨建江叶韵
Owner 佛山市普尔玛农化有限公司
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