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A kind of agricultural fungicidal composition

A composition, the technology of fludioxonil, applied in the field of crop disease prevention and control, agricultural fungicidal composition, agricultural fungicidal composition containing fludioxonil, can solve the problem of decreased efficacy of pesticides, increased burden on farmers, increased environmental pollution, etc. problem, to achieve the effects of improved drug efficacy, improved control effect, and obvious synergistic effect

Active Publication Date: 2016-04-06
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the resistance of pathogenic bacteria, the control effect of pesticides decreases, resulting in frequent application of pesticides, resulting in increased burden on farmers and increased environmental pollution

Method used

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  • A kind of agricultural fungicidal composition
  • A kind of agricultural fungicidal composition
  • A kind of agricultural fungicidal composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Bioassay example 1: Indoor toxicity test of fludioxonil and pyrimidine nucleoside antibiotics against rice sheath blight

[0018] Test object: rice sheath blight fungus (Rhizoctonia solani Kuhn), which was collected in the field, isolated in the laboratory and reintroduced three times.

[0019] Test method: refer to "Pesticide Indoor Bioassay Test Guidelines NY / T1156.2-2006 and NY / T1156.6-2006", using the growth rate method (plate method). On the basis of the preliminary test, on the aseptic operation table, quantitatively add the pre-thawed sterilized medium into the sterile Erlenmeyer flask according to the test treatment, and take 5ml of the liquid medicine from low concentration to high concentration and add it to the In a Erlenmeyer flask equipped with 45ml of hot culture medium (PDA medium, 45-50°C), after shaking well, quickly pour it into a 90mm diameter glass petri dish, and pour 10ml of the medium with medicine into each petri dish. Set aside horizontally to ...

example 2

[0030] Bioassay example 2: Indoor toxicity test of fludioxonil and pyrimidine nucleoside antibiotics against wheat powdery mildew

[0031] Test object: wheat powdery mildew bacteria (Erysiphegraminis), collected from wild wheat powdery mildew strains in the field, and separated and purified.

[0032] Test method: This test refers to the "Agricultural Industry Standards of the People's Republic of China" (Pesticide Indoor Bioassay Test Guidelines for Fungicides NY / T1156.4-2006), and the pot plant method is used.

[0033] 24 hours after the chemical treatment, the fresh spores of powdery mildew bacteria produced on the leaves of the diseased wheat within 24 hours were evenly shaken off and inoculated on the potted wheat seedlings at the 2-3 leaf stage. Dry naturally, cultivate and observe under suitable conditions. There were 3 pots per treatment, 10 plants per pot, and the treatment without pesticide was used as the blank control. After 10 days, the control effect of the test...

Embodiment 1

[0045] Preparation Example 1: 41% fludioxonil·pyrimidine nucleoside antibiotic wettable powder

[0046] Formula composition: active ingredient fludioxonil 40%, active ingredient pyrimidine nucleoside antibiotics 1%, sodium lauryl sulfate (wetting agent) 6%, naphthalenesulfonate (diffusion agent) 5%, lignosulfonic acid Sodium (dispersant) 7%, kaolin (filler) make up to 100%.

[0047] Example of Suspending Concentrate

[0048] Mix the pesticide active ingredient, dispersant, wetting agent, thickener, defoamer, preservative, antifreeze agent and water according to the ratio of the formula, and then grind and / or high-speed shear to obtain suspension agent products.

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Abstract

The invention discloses an agricultural sterilizing composition comprising the effective components including fludioxonil and pyrimidine nucleoside antibiotics in the mass ratio of 40:1 to 1:40 and the balance of auxiliary components allowable to use and acceptable in a pesticide. The composition disclosed by the invention can be prepared into a suspending agent, a micro-capsule suspending agent, a suspended seed coating, wettable powder or water dispersible granules by using known methods. After fludioxonil and pyrimidine nucleoside antibiotics are compounded according to a certain ratio, a remarkable synergistic effect is taken, and the agricultural sterilizing composition is mainly used for preventing and controlling rice sheath blight and wheat powdery mildew.

Description

technical field [0001] The invention belongs to the technical field of pesticide compounding, and relates to an agricultural bactericidal composition, in particular to an agricultural bactericidal composition containing fludioxonil and its application for preventing and controlling crop diseases. Background technique [0002] Fludioxonil (Fludioxonil) is a new type of pyrrole non-systemic broad-spectrum fungicide. Its mechanism of action is to inhibit the growth of fungal mycelia and lead to the death of pathogens by inhibiting the transferase related to glucose phosphorylation in bacteria. . It has a good protective and therapeutic effect on diseases caused by pathogenic bacteria such as Alternaria, Ascospora, Aspergillus, Fusarium, Helminthias, Rhizoctonia and Penicillium, and is used to control snow Fusarium rot, wheat black rot, R. blight, etc. [0003] In recent years, due to single drug use and other unscientific drug use methods, a variety of crop pathogens such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/02A01P3/00A01N43/36
Inventor 孙承艳杨立平李鹏飞仲旭云王新军曹明章孔建
Owner SHENZHEN NOPOSION AGROCHEM
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