Compound bactericide and application thereof

A technology for compounding fungicides and trifloxystrobin, applied in the directions of fungicides, applications, biocides, etc., can solve the problems of human skin irritation, inconvenience of application personnel, and impact on rice quality, so as to reduce the frequency of medication and improve prevention and control. effect, effect

Inactive Publication Date: 2009-09-09
龚亚慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used medicaments for the prevention and treatment of rice blast and rice false smut, or because of continuous use, the control effect is reduced; or there is a heavy smell, which has a strong stimulating effect on human skin, causing great inconvenience to the sprayers and damaging the rice. Quality makes a difference

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

[0019] The indoor activity of the compound fungicide of the present invention against rice blast was determined.

[0020] The original drug of trifloxystrobin and the original drug of prochloraz were dissolved in methanol and acetone respectively, and 5% Tween-80 was added to the constant volume as emulsifier and spreading agent, respectively, to prepare mother liquors of 1000 μg / mL. At the same time, samples of trifloxystrobin and prochloraz were prepared with trifloxystrobin and prochloraz mother liquor, and the ratios of trifloxystrobin and prochloraz in the samples were 30:1, 20:1, 10:1, 1:1 respectively. 1. 1:1.5, 1:10, 1:20, 1:30. Using the drug-containing medium method, trifloxystrobin, prochloraz, and samples of various proportions were prepared into a dilution solution of a certain mass concentration, and 1 mL of the drug solution was taken into a petri dish with a diameter of 9 cm, and then 9 mL of YPSA medium was added and mixed. After homogenization, a drug-contai...

Embodiment 2

[0027] The indoor activity of the compound fungicide of the present invention on rice false smut was determined.

[0028] The original drug of trifloxystrobin and the original drug of prochloraz were dissolved in methanol and acetone respectively, and 5% Tween-80 was added to the constant volume as emulsifier and spreading agent, respectively, to prepare mother liquors of 1000 μg / mL. At the same time, samples of trifloxystrobin and prochloraz were prepared with trifloxystrobin and prochloraz mother liquor, and the ratios of trifloxystrobin and prochloraz in the samples were 30:1, 20:1, 10:1, 1:1 respectively. 1. 1:1.5, 1:10, 1:20, 1:30, 1:40. Using the drug-containing medium method, trifloxystrobin, prochloraz, and samples of various proportions were prepared into a dilution solution of a certain mass concentration, and 1 mL of the drug solution was put into a petri dish with a diameter of 9 cm, then 9 mL of PSA medium was added, and mixed Afterwards, drug-containing plates w...

Embodiment 3

[0036]25% trifloxystrobin and prochloraz WP for the control of rice blast, the application time is at the early stage of the disease, wherein the 25% trifloxystrobin and prochloraz WP used contain trifloxystrobin 10%, prochloraz 15%, Wetting agent 10%, auxiliary agent 2%, and the rest is kaolin as filler. The amount of water mixed is 600L / ha, spray fine mist. The results are shown in Table 3.

[0037] Table 3. Field control effect of 25% trifloxystrobin prochloraz WP on rice blast

[0038]

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Abstract

The invention discloses a compound bactericide which is characterized in that the compound bactericide is prepared by compounding tifloxystrobin and prochloraz with the weight proportion of 1:30-1:40. The compound bactericide of the invention, which is used for preventing plant diseases, such as rice blast, rice false smut, rice sheath blight and the like, has the advantages of broad anti-bacterial spectrum, high systemic activity, high quick-action performance and long lasting period; meanwhile, the compound bactericide can further overcome the bactericide resistance of harmful bacteria to carbendazim and other agents and reduce the frequency of bactericide application; and the compound bactericide is environment-friendly, and gives full play to the integrated control, therefore, the compound bactericide is an ideal agent in the pollution-free control.

Description

technical field [0001] The invention relates to a fungicide and a method for preventing and controlling diseases thereof, in particular to a compound fungicide for preventing and controlling rice diseases and its application. Background technique [0002] Rice blast is also known as rice fever, fire blast, and kowtow blast. Distributed in various rice areas across the country, it mainly damages leaves, stems, and ears. Because of different damage periods and parts, it can be divided into seedling blast, leaf blast, joint blast, ear neck blast, and grain blast, which have a great impact on rice growth. The disease in the early growth stage of rice seedlings can cause the death of rice seedlings, and the disease in the heading stage can cause the death of rice seedlings. Cause withered and white ears, seriously affect rice yield. The most effective control method for rice blast is medicament control. The main medicaments are tricyclazole, rice blastazim, carbendazim, thiopha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/38A01N37/50A01P3/00
Inventor 龚亚慧
Owner 龚亚慧
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