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Compound bactericide and application thereof

A compound fungicide and additive technology, applied in the direction of fungicide, application, biocide, etc., can solve the problems of not being able to keep up with the speed of germ resistance, high development cost, and long development cycle, and achieve the goal of overcoming and germ resistance. Drug properties, lower production and use costs, crop safety effects

Inactive Publication Date: 2016-03-30
QINGDAO HANSEN BIOLOGIC SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development cost of new active ingredients is high, the development cycle is long, and it can never keep up with the speed of resistance of bacteria
Other methods, such as crop layout adjustment, rotation of different pesticides, etc., are difficult to achieve obvious effects in actual operation.

Method used

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  • Compound bactericide and application thereof
  • Compound bactericide and application thereof
  • Compound bactericide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: (45% pyraclostrobin · trifloxystrobin wettable powder)

[0038] Formula: pyraclostrobin, 30%; trifloxystrobin, 15%; wetting agent sodium lauryl sulfate, 2.5%; dispersant agent calcium lignosulfonate, 6%; filler white carbon black, 8%, Filler Kaolin makes up 100%.

[0039] 2. Water dispersible granules

[0040] Preparation method: according to the formula ratio of the example, add the active ingredients pyraclostrobin and trifloxystrobin into the carrier, and add surfactant and other functional additives, mix, and add 10-25% after jet crushing water, and then kneaded, granulated, dried, and sieved to obtain water-dispersible granules; or the pulverized powder was sprayed with water in a boiling granulator, granulated, dried, and then sieved to obtain the product. The main equipments are mixer, jet mill, kneader, extrusion granulator, drying room or fluidized bed drying, or boiling granulator, screening machine.

Embodiment 2

[0041] Example 2: (50% pyraclostrobin · trifloxystrobin water dispersible granules)

[0042] Formulation: pyraclostrobin, 20%; trifloxystrobin, 30%; wetting agent sodium dodecylbenzenesulfonate, 4%; polycarboxylate, 2%; urea, 4%; polyethylene glycol, 3% dispersant alkyl naphthalene sulfonate formaldehyde condensate, 6%; filler attapulgite to make up 100%.

[0043] 3. Water suspending agent

[0044]Preparation method: according to the proportion of the formula, put the active ingredients pyraclostrobin, trifloxystrobin, surfactant and other functional additives in the reaction kettle in sequence, add water and mix evenly, high-speed shearing, wet sanding, Finally, the product is obtained by homogeneous filtration. The main equipment is batching kettle, colloid mill or homogeneous mixer, sand mill.

Embodiment 3

[0045] Example 3: (35% pyraclostrobin · trifloxystrobin aqueous suspension concentrate)

[0046] Formula: pyraclostrobin, 20%; trifloxystrobin, 15%; dispersant polycarboxylate, 3%; dispersant phosphate, 2%; wetting agent methyl naphthalene xanthate formaldehyde condensate, 1 %; Thickener selection of xanthan gum and magnesium aluminum silicate, the dosage is 0.15% and 2% respectively; antifreeze ethylene glycol, 5%; defoamer organosilicon compound, 0.2%; water, the balance.

[0047] 4. Microemulsion

[0048] Preparation method: Add the active ingredients pyraclostrobin and trifloxystrobin into the carrier according to the formula ratio of the example, and add a surfactant into it, stir in a stirring mixing tank to make it a uniform oil phase, and then slowly stir Add water and stir to become transparent. The stirring and mixing kettle can be enamel reaction kettle, stainless steel stirring kettle, etc.

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PUM

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Abstract

The invention belongs to the field of bactericides for agriculture and particularly relates to a compound bactericide containing pyraclostrobin and trifloxystrobin and an application of the compound bactericide. The effective ingredients of the compound bactericide comprise pyraclostrobin and trifloxystrobin in the weight ratio being (1:10)-(10:1), preferably, (1:5)-(5:1). The compound bactericide has the benefits as follows: 1, compared with a single agent, the composition has a remarkable synergism effect on multiple diseases such as downy mildew, scab, leaf spot diseases, powdery mildew, rice blast and the like of crops instead of simple summation of activity of components; 2, the use quantity of the effective ingredients in a field is reduced, the production and use cost is decreased, and pesticide residues and environmental pollution are reduced; 3, the bactericide composition comprises effective ingredients with different action mechanisms, formation of drug resistance of pathogenic bacteria is prevented and delayed, and the bactericide is safe to the crops; 4, by comparison with the single agent, the quick acting property is remarkably improved, and the effect is more remarkable; 5, the composition enlarges the bactericidal spectrum and is an important means for comprehensively controlling crop diseases.

Description

Technical field [0001] The invention belongs to the field of agricultural fungicides, and particularly relates to a compound fungicide containing pyraclostrobin and trifloxystrobin and its application. Background technique [0002] Pyraclostrobin is a new broad-spectrum fungicide. The mechanism of action is a mitochondrial respiration inhibitor, which blocks electron transfer during cytochrome synthesis, ultimately leading to cell death. The compound has a strong ability to inhibit the germination of pathogen spores, has a good inhibitory effect on the growth of hyphae in leaves, and has potential therapeutic activity. In short, pyraclostrobin has protective, therapeutic, leaf penetration conduction and rain erosion resistance properties, and has a wide range of applications. Field efficacy test results show that it has good control effect on cucumber powdery mildew, downy mildew and banana scab, leaf spot, sclerotinia, etc. It is also safe for crops and no phytotoxicity h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N37/50A01P3/00
CPCA01N47/24A01N37/50A01N2300/00
Inventor 郝丽霞邵彦坡王传华
Owner QINGDAO HANSEN BIOLOGIC SCI
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