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Isopyrazam and hexaconazole bactericidal composition and application thereof

A technology of pyraclostrobin and its composition, which is applied in the field of bactericidal composition suspending agent, and can solve the problems of difficult popularization and use of pyraclostrobin and hexaconazole, lack of dosage forms and compound formulas, intolerance to storage and long-distance transportation, etc. problem, to achieve the effect of reducing the cost of medication, high stability and good effect

Inactive Publication Date: 2015-03-25
浙江威尔达化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, it has been reported that pyraclostrobin and hexaconazole are used in combination to prevent and control plant powdery mildew, but there is a lack of reasonable dosage forms and compound formulas, the control efficiency is not high, and it is not resistant to storage and long-distance transportation. The compound of azole alcohol is difficult to popularize and use

Method used

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  • Isopyrazam and hexaconazole bactericidal composition and application thereof
  • Isopyrazam and hexaconazole bactericidal composition and application thereof
  • Isopyrazam and hexaconazole bactericidal composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Indoor combined effect test of pyraclostrobin and hexaconazole mixed on grape powdery mildew

[0026] 1 Test purpose

[0027] Using the pot method, the indoor bactericidal activity of pyraclostrobin and hexaconazole single agent against grape powdery mildew was tested, and 5 ratios were designed for verification and screening.

[0028] experiment material

[0029] 2.1 Design of test agents and test doses

[0030] Both pyraclostrobin and hexaconazole were provided by Zhejiang Wellda Chemical Co., Ltd. Preliminary tests were carried out on the two agents, and according to the results of the preliminary tests, a total of 5 ratios of hexaconazole: pyraclostrobin = 1:1, 1:2, 1:3, 1:4, 1:5 were designed , the test dose design is shown in Table 1.

[0031] Table 1 Test dose design

[0032]

[0033] 2.2 Test targets

[0034] Grape powdery mildew ( Sphaerotheca cucurbitae (Schlecht.) Poll.), indoor living preservation and culture.

[0035] Grape seedlings: Grape seedl...

Embodiment 2

[0055] Weigh the raw materials according to the following weight ratio.

[0056] 45% pyraclostrobin, 15% hexaconazole, 6.8% calcium dodecylbenzenesulfonate, 3% alkylphenol polyoxyethylene ether phosphate, 4% polycondensation of alkylnaphthalenesulfonic acid Sodium salt, 0.3% magnesium aluminum silicate, 5% ethylene glycol, 0.3% sodium benzoate, and the balance is water.

[0057] During production, add the above-mentioned prepared raw materials into the preparation kettle and stir for 30 minutes, make up the amount with water, sand mill for about 2 hours, defoam and adjust the pH value to obtain the processed product.

Embodiment 3

[0059] Weigh the raw materials according to the following weight ratio.

[0060] 30% pyraclostrobin, 10% hexaconazole, 6.8% calcium dodecylbenzenesulfonate, 3% alkylphenol polyoxyethylene ether phosphate, 4% polycondensation of alkylnaphthalenesulfonic acid Sodium salt, 0.3% magnesium aluminum silicate, 5% ethylene glycol, 0.3% sodium benzoate, and the balance is water.

[0061] During production, add the above-mentioned prepared raw materials into the preparation kettle and stir for 30 minutes, make up the amount with water, sand mill for about 2 hours, defoam and adjust the pH value to obtain the processed product.

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Abstract

The invention provides an isopyrazam and hexaconazole bactericidal composition suspension agent and an application thereof in prevention and treatment of powdery mildew of cucumber and powdery mildew of powdery mildew. The suspension agent comprises active components, a wetting agent and a dispersant, wherein the active components are isopyrazam and hexaconazole; the wetting agent is calcium dodecyl benzene sulfonate; the dispersant is alkylphenol polyoxyethylene ether phosphate and sodium alkyl naphthalene sulfonate polycondensate. The suspension agent disclosed by the invention has a quite good prevention and treatment effect in preventing and treating the powdery mildew of cucumber and the powdery mildew of powdery mildew and is low in application dosage, good in stability and convenient to store and transport.

Description

technical field [0001] The invention relates to a bactericidal composition suspension, in particular to a bactericidal composition suspension of pyraclostrobin and hexaconazole for preventing and treating grape powdery mildew and cucumber powdery mildew. Background technique [0002] Grape powdery mildew is a fungal disease of the subphylum Ascomycota, and it is one of the main diseases of grapes. It mainly harms young fruits, young shoots and leaves. The affected area is often covered with a white to off-white powdery mold layer. When the fruit is damaged, it almost stops growing, and the surface of the damaged fruit has reticular markings, deformed and hardened, and sometimes cracked longitudinally. When the leaves are damaged, the surface is covered with off-white powdery particles at first, and when the pathogen spreads to the whole leaves, the leaves turn brown and scorched. When new shoots and cobs are killed, many brown reticular patterns appear on the epidermis, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01N25/04A01N25/30A01P3/00A01N43/56
Inventor 杨婷吴明龙王连根
Owner 浙江威尔达化工有限公司