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Compound composition of osthole and thiafuramide and application thereof

A compound composition and technology of thifluzamide, applied in the fields of application, biocide, animal repellent, etc., can solve the problems that have not been reported, and achieve the effects of reducing risk, reducing the amount of field use, and low toxicity to humans and animals

Active Publication Date: 2017-03-01
烟台益硕生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a botanical fungicide, osthole, whose chemical name is 7-methoxy-8-(3'-methyl-2'-butenyl)-1-dihydrochromanone-2, is a A plant extract derived from the annual herbaceous plant Cnidium monnieric (L.) Cuss. of the Umbelliferae family, also present in the roots and rhizomes of fenugreek, round angelica, hairy angelica, and celery. A mature extraction method, initially applied in medicine, and later applied as an insecticide and fungicide in agriculture, but the compound composition of osthole and thiafuramide has not been reported in the prevention and treatment of wheat sheath blight

Method used

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  • Compound composition of osthole and thiafuramide and application thereof
  • Compound composition of osthole and thiafuramide and application thereof
  • Compound composition of osthole and thiafuramide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Indoor toxicity test and compound ratio screening

[0020] 1.1 Drugs to be tested

[0021] 94.7% osthole original drug, provided by the Institute of Food Quality and Safety, Jiangsu Academy of Agricultural Sciences.

[0022] 96% Thiofuramide technical product, product of Zhaoyuan Sanlian Far East Chemical Co., Ltd., Shandong Province.

[0023] 1.2 Tested strains

[0024] The target of the test is the strain sample of wheat sheath blight (Rhizoctonia cerealis Vander Hoeven) which was isolated from diseased roots in the field, cultivated and purified the first-generation strain, and stored in a 4°C refrigerator for later use.

[0025] 1.3 Instruments and equipment

[0026] There are mainly electronic balances, ultra-clean workbenches, biological incubators, petri dishes, micropipettes, etc.

[0027] 1.4 Experimental method

[0028] The Mycelium growth rate test recommended by the FAO was used.

[0029] 1.4.1 Drug compounding

[0030] Table 1 Compound ratio of ostho...

Embodiment 2

[0061] field plot experiment

[0062] According to the indoor compound ratio screening experiment, the optimal ratio of osthole:thiafuramide=1:8 was selected, and we prepared a 9% osthole·thiafluxamide compound composition. According to the "Pesticide Field Efficacy Test Guidelines (2)" edited by the Ministry of Agriculture's Pesticide Control Institute, the field efficacy test of 9% osthole·thiafuramide compound composition on wheat sheath blight was designed .

[0063] 2.1 Drugs to be tested

[0064] 240 g / L Thiofuramide Suspending Concentrate 54g / ha, Japan Nissan Chemical Industry Co., Ltd.;

[0065] 1% osthole water emulsion 22g / ha, Chengdu Lvjin Biotechnology Co., Ltd.

[0066] 9% osthole Thiofuramide 36, 45, 54g / ha, prepared by Yantai Academy of Agricultural Sciences.

[0067] 2.2 Control drug

[0068] 250 g / L propiconazole EC 150g / ha, the product of Swiss Syngenta Crop Protection Co., Ltd.

[0069] 2.3 Community design

[0070] There are 7 treatments in total in ...

Embodiment 3

[0085] safety test

[0086] The content of osthole and thiafuramide in the compound composition is less than that of commercially available products, so its toxicity to humans and animals and the safety of crops meet the requirements. The results of the toxicity test of the accredited institution show that the compound fungicide belongs to the slightly toxic pesticide:

[0087] Acute oral toxicity in rats ♀>5000mg / kg;

[0088] Acute dermal toxicity in rats ♀>20000mg / kg.

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Abstract

The invention relates to an osthole and thifluzamide compounded composition with the advantages of good environmental compatibility, high efficiency, low toxicity and low residual, especially used for application researches of wheat sheath blight. A ratio of osthole to thifluzamide in the compounded composition is 1:1-1:32, and the compound composition has a protruding effect in control of the wheat sheath blight.

Description

technical field [0001] The invention relates to a fungicide used for preventing and treating wheat sheath blight, in particular, an osthole and thiafuramide compound fungicide used for preventing and treating wheat sheath blight. Background technique [0002] Wheat sharp eyespot, also known as wheat sharp eyespot, is a common and serious soil-borne fungal disease on wheat. It was reported abroad for the first time in 1934. In 1955, a large area of ​​wheat seedlings died in Jiangyin County in my country, but it was called wheat blight at that time and was not taken seriously. Wheat sheath blight was not recognized again until 1973. In recent years, due to factors such as large-scale planting of susceptible varieties and unreasonable water and fertilizer application, a large number of sheath blight bacteria has accumulated, and the area of ​​occurrence of the disease has expanded rapidly. It has occurred to varying degrees in nearly 20 provinces and cities in my country, espe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/02A01P3/00A01N43/16
Inventor 张伟王英姿王鹏刘保友刘洁
Owner 烟台益硕生物科技有限公司
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