Sterilization composition containing fluazinam and prothioconazole as well as application thereof

Abstract

The invention discloses a sterilization composition containing fluazinam and prothioconazole as well as an application thereof, which belong to the technical field of pesticide. The sterilization composition takes fluazinam and prothioconazole as main effective components, wherein weight ratio of fluazinam to prothioconazole is 1-70: 1-50. The sterilization composition can be used for preventing and controlling fungous diseases such as cereal, fruit or vegetable crops, especially can be used for preparing the sterilization medicines for preventing and treating powdery mildew, anthracnose, scab, penicilliosis, eqpidemic disease, leaf blight, rust, downy mildew, brown spot, fusarium patch and botrytis. The composition has high cooperative synergism effect, can overcome and delay the resistance of pathogen as well as enlarge a controlling spectrum, the sterilization speed is fast, persistent period is long, application cost is reduced, and the controlling effect of the composition is obviously better than that of a single dose.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a bactericidal composition and its application, in particular to a bactericidal composition with fluazinam and prothioconazole as main active ingredients and its application. Background technique [0002] Fluazinam (Fluazinam), pure product is yellow crystalline powder, melting point 115-117, ℃ vapor pressure 1.5mpa (25. ℃) density 0.366g / mL (25. ℃) water solubility 1.7mg / L (pH7, 20, ℃) Solubility in organic solvents (g / L, 20: ℃) toluene 410, dichloromethane 330, ether 320, ethanol 150, n-hexane 12. Stable to heat, acid and alkali. Chemical name: N-[3-chloro-5-(trifluoromethyl)-2-pyridyl]-3-chloro-4-(trifluoromethyl)-2,6-dinitroaniline, molecular formula: C 13 h 4 Cl 2 f 6 N 4 o 4 , the structural formula is as follows: [0003] [0004] Fluazinam is a low-toxicity fungicide, acute oral LD ​​in rats 50 >5000mg / kg, acute percutaneous LD in rats 50 >2000mg / kg. ...

AI Technical Summary

Problems solved by technology

[0008] At present, crop diseases such as leaf blight, rust, powdery mildew, downy mildew, blight, anthracnose, sore dementia, brown spot, blight, and botrytis are relatively serious, often causing catastrophic losses, although Fluazinam and prothioconazole are powerful weapons in the prevention and control of plant diseases, but they are currently facing problems such as serious resistance and difficult control: on the one hand, with the change of planting structure, the planting area of ​​economic crops such as melons, fruits and vegetables is gradually increasing. With the expansion of the disease, the incidence and number of diseases have increased, and the difficulty in prevention and control has increased; on the other hand, the resistance of pathogenic bacteria has increased year by year under the pressure of continuous chemical selection, and the control effect of a single agent has been greatly reduced. focus on major challenges

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