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Method for preventing and treating rice blast

A rice blast and paddy rice technology, applied in the field of agricultural applications, to achieve the effect of reducing pesticide residues, benefiting the resistance of pathogens, and reducing the amount of use

Inactive Publication Date: 2018-02-23
邓付圆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] After research by the inventors, it was found that the compounding of fluopyram and rice blastling has a good synergistic effect on rice blast within a certain range, and the related compounding of fluopyram and rice blastling is applied to The research on rice blast has not been reported yet

Method used

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  • Method for preventing and treating rice blast

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: Fluopyram, Daobenling and mixture are tested for indoor toxicity of rice blast

[0016] After pre-testing to determine the range of effective inhibitory concentration of each drug, each drug was treated with 5 doses in gradients according to the content of active ingredients, and water control was set. Refer to the "Pesticide Indoor Bioassay Test Guidelines for Fungicides", and use the mycelium growth rate method to determine the toxicity of the pesticides to rice blast. After 72 hours, the colony diameter was measured by the cross method, and the net growth and mycelial growth inhibition rate of each treatment were calculated.

[0017]

[0018] The mycelia growth inhibition rate was converted into a probability value (y), the concentration of the medicinal solution (μg / mL) was converted into a logarithmic value (x), and the regression equation of virulence (y=a+bx) was obtained by the least square method, and by This calculates the EC for each agent ...

Embodiment 2

[0030] Embodiment 2: 25% fluopyram · rice blastling suspension concentrate

[0031] Formula: Weigh 15% of fluopyram, 10% of rice blastil, 2.5% of calcium salt of alkylbenzenesulfonate (wetting agent), 5% of polycarboxylate (dispersant), 0.5% of xanthan gum (thickener), 2.5% propylene glycol (antifreeze), 0.3% silicone oil (defoamer), and deionized water to make up to 100%.

Embodiment 3

[0032] Embodiment 3: 45% fluopyram · rice blastling suspension concentrate

[0033] Formula: Weigh 40% of fluopyram, 5% of rice blastil, 4.5% of alkylnaphthyl sulfonate (wetting agent), 5% of polycarboxylate (dispersant), 0.5% of xanthan gum (thickener), polyethylene glycol 2.5% (antifreeze), silicone oil 0.2% (defoamer), and deionized water to make up to 100%.

[0034] The above-mentioned Examples 1-3 were prepared according to the following method: according to the formulation requirements, the components were mixed evenly, and the composition containing fluopyram·blastizolin was obtained through grinding and high-speed shearing, and the dosage form was a suspension concentrate.

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Abstract

The invention relates to a method for preventing and treating rice blast. Pesticide preparations with active ingredients being fluopyram and isoprothiolane are mixed; after water addition, the materials are uniformly sprayed onto rice plants until leaves are wet; the weight ratio of the fluopyram to the isoprothiolane is from 10:1 to 1:10. The cooperative and synergistic action is obvious; the medicine effect can be greatly improved; the consumption of the active ingredients can be reduced, so that the adverse influence and pesticide residue on the environment can be reduced; the control on the pathogenic bacterium pesticide resistance is facilitated.

Description

technical field [0001] The invention relates to the field of agricultural application technology, in particular to a method for preventing and treating rice blast. Background technique [0002] In recent years, many diseases have become resistant to the currently used pesticides due to single and unscientific use of drugs, such as rice blast, which has become a major problem in chemical control. In addition, there are many physiological races of rice blast disease, which makes the prevention and control more difficult. At the same time, frequent application of pesticides has caused increased burden on farmers and increased environmental pollution. Therefore, a method that can effectively prevent and treat rice blast can effectively control the disease and is beneficial to the control of the drug resistance of the pathogen. [0003] Fluopyram, English name: fluopyram, is a new type of pyridylethylbenzamide fungicide developed by Bayer, which acts on the mitochondrial respir...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N43/28A01N25/04A01N25/14A01P3/00
CPCA01N43/40A01N25/04A01N25/14A01N43/28
Inventor 邓付圆
Owner 邓付圆
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