Bactericidal composition for preventing and treating rice bacterial leaf streak

A bacterial and compositional technology, applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of large dosage of medicines, rapid development of bacterial resistance, environmental pollution, etc., to reduce dosage, Good control effect and cost reduction effect

Inactive Publication Date: 2017-09-08
广西南宁黑泥巴农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide an efficient and safe rice sterilizing agent containing berberine and orysastrobin in order to overcome the disadvan

Method used

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  • Bactericidal composition for preventing and treating rice bacterial leaf streak
  • Bactericidal composition for preventing and treating rice bacterial leaf streak
  • Bactericidal composition for preventing and treating rice bacterial leaf streak

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Bioassay Example 1 : Indoor Toxicity Determination of Berberine and Orysastrobin Complex to Bacterial Leaf Spot of Rice

[0028] Test object: Bacterial leaf spot of rice collected from the field

[0029] Test method: make the mother liquor with a certain concentration of the test agent, and then dilute it with water according to the set ratio to prepare 5-6 concentrations. Set clean water as the control, and add the concentration of bacteria containing 1×10 7 In the cfu / mL NB culture medium, in a constant temperature shaker at 28°C and 130r / m, after culturing for 24 hours, use a UV spectrophotometer to measure the absorbance value at a wavelength of 600nm, and calculate the antibacterial rate according to formula 2-3. The drug concentration was converted into logarithm, and the bacteriostatic rate was converted into a probability value for linear regression, and the toxicity regression equation and EC50 value (Half Maximal Effective Concentration, EC50) were calculated...

Embodiment 1

[0043] Example 1 : 1% Berberine. Orysastrobin Granules

[0044]

[0045] Add xylene to berberine and orysastrobin, then stir them well to dissolve them completely; under stirring, slowly add propylene glycol into the system, stir well for 30 minutes to dissolve them completely and form a stable solution .

[0046] First add 12-60 mesh zeolite into the mixer, then add the above stable solution into it, mix for 30 minutes, after screening and testing, you can get 1% berberine. Oryzastrobin Granules.

Embodiment 2

[0047] Example 2 : 10% Berberine. Oryzastrobin Microcapsule Suspension Concentrate

[0048]

[0049]

[0050] Dissolve 2% prothiostrobin and 8% orysastrobin in 5% xylene, then pump in 0.3% tributyl phosphate, 2.4% carboxymethyl cellulose, and 2.7% sodium alginate in high shear Cut the kettle and shear at high speed for 30 minutes, add 20% urea-formaldehyde resin prepolymer, heat up and solidify for 60 minutes under stirring at 2000 rpm, then add deionized water, 4.5% sodium dinaphthyl methane disulfonate, 1.8% bentonite, Stir evenly to get 10% berberine · orysastrobin microcapsule suspension.

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Abstract

The invention belongs to the technical field of pesticides, and particularly relates to a bactericidal composition for preventing and treating a rice bacterial leaf streak. The bactericidal composition for preventing and treating the rice bacterial leaf streak is formed by compounding effective components which are berberine and orysastrobin, wherein the mass ratio of the berberine to the orysastrobin is (1 to 20):(20 to 1). The bactericidal composition provided by the invention can be prepared into conventional dosage forms of wettable powder, a water dispersible granule, a suspending agent, a micro-capsule suspending agent, a granule or an aqueous emulsion and the like in agricultural pharmacology. The bactericidal composition provided by the invention has advantages of being high in efficiency and little in environment pollution and delaying the generation of the drug resistance of a germ, and the like. The bactericidal composition can be used for preventing and treating diseases of multiple crops, and particularly the rice bacterial leaf streak.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a pesticide composition, in particular to a bactericidal composition for preventing and treating rice bacterial streak disease. Background technique [0002] During the entire growth process of crops, they are faced with the threat of many pests such as diseases, insects, and weeds. Among them, diseases, especially fungal diseases, are characterized by various types, complex symptoms, rapid spread, serious damage, and compound occurrence. It makes it more difficult to control and poses a huge threat to crop yield and quality. In the process of agricultural production, in order to reduce the losses caused by fungal diseases, chemical control is one of the more significant means at present. The currently used medicaments produce different degrees of resistance, and it is reported that due to this unscientific drug use method, the resistance generation time of various medicaments ...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N37/50A01P1/00
CPCA01N43/90A01N37/50A01N2300/00
Inventor 盘成
Owner 广西南宁黑泥巴农业科技有限公司
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