CN-119498343-B - Sterilization composition for preventing and treating fig rust disease

CN119498343BCN 119498343 BCN119498343 BCN 119498343BCN-119498343-B

Abstract

The invention belongs to the technical field of bactericides, and particularly relates to a bactericidal composition for preventing and treating fig rust. A bactericidal composition is used for preventing and treating fig rust, and is prepared by compounding trifluoropyridylamine and flusilazole or metrafenone. According to the invention, the trifluoropyridine amine and the flusilazole or the phenol cycloheximide are compounded according to a certain mass ratio, the compounded combination shows a synergistic effect on the fig rust pathogenic bacteria, namely the fig summer rust in a certain mass ratio range, and compared with a single component, the bactericidal composition can improve the control effect on the fig rust, delay the generation and development of the drug resistance of the pathogenic bacteria and reduce the drug resistance risk of the bactericidal composition. Secondly, the bactericidal composition can widen the compound combination of the trifluoropyridine amine, and provides support for fully developing compound medicines of the trifluoropyridine amine.

Inventors

ZHANG JI
TANG WENZHONG
SUN JIAMAN
ZHANG JINZHONG
TANG AIHUA
ZHENG YUANTAO

Assignees

广西壮族自治区农业科学院
广西春华宜源农业科技有限公司

Dates

Publication Date: 20260508
Application Date: 20241121

Claims (2)

1. The sterilization composition is characterized by being formed by compounding trifluoropyridinamine and flusilazole, wherein the mass ratio of the trifluoropyridinamine to the flusilazole is 1-40:15-1.
2. A bactericide, characterized in that it comprises the bactericidal composition according to claim 1, the mass of which is 0.75-55% of the total mass of the bactericide.

Description

Sterilization composition for preventing and treating fig rust disease Technical Field The invention belongs to the technical field of bactericides, and particularly relates to a bactericidal composition for preventing and treating fig rust. Background The fig rust disease is easy to occur in rainy years and wet orchards in greenhouses, the disease starts to infect from the basal part of the leaf blade, gradually spreads upwards, early symptoms are that leaf veins are in a rust color, along with the gradual serious disease, the front of the leaf blade is provided with a reddish brown disease spot, and the follow-up disease spot is connected into a slice when the follow-up disease spot is gradually enlarged seriously. A large amount of rust-colored powdery spores are generated on the backs of the disease leaves, and the tree body or branches are shaken in an orchard where rust is large, so that the spores can be spread in the air like smoke. The early-stage fallen leaves of figs can be caused when the rust disease of figs occurs, and the figs are mixed with the dry branch disease to affect the yield and the quality. The pathogenic bacteria of fig rust is fig summer rust (Uredo sawadae ito.) which is only found in the summer spore generation, while rust and winter spore generation are not good, belonging to the group of half rust (Uredinales imperfecti). The summer spores are piled on the leaf backs and brown, and the summer spores are yellow to yellow brown and have tumor-shaped thorns and wall thickness. In the production of figs, the chemical prevention and control of the rust disease of the figs are mainly adopted, and thiophanate-methyl, tebuconazole, difenoconazole, triazolone, diniconazole, myclobutanil and the like can be sprayed. However, in the process of chemical prevention and control of diseases and insect pests, drug resistance is a non-negligible problem, and along with long-term and massive unscientific use of the medicament, the fig rust disease bacteria have different degrees of drug resistance to the existing various medicaments, so that the prevention and control effect is reduced year by year. The trifluoropyridinamine is succinic dehydrogenase inhibitor (SDHI) type sterilization nematicide. In the aspect of preventing and controlling pathogenic bacteria, the trifluoropyridine amine is a pathogenic bacteria respiration inhibitor, and can inhibit the function of mitochondria by interfering with the tricarboxylic acid circulation on a respiratory electron transfer chain complex II, prevent the generation of energy of the tricarboxylic acid, further inhibit the growth of pathogenic bacteria and finally lead to the death of pathogenic bacteria, and in the aspect of preventing and controlling nematodes, the production of ATP (adenosine triphosphate) of mitochondria of plant pathogenic nematodes is destroyed by inhibiting the activity of succinate dehydrogenase, so that the trifluoropyridine amine can be used for preventing and controlling various fungal diseases and nematodes. Disclosure of Invention The invention aims to provide a sterilization composition for preventing and controlling fig rust, which is a non-negligible problem in the process of chemically preventing and controlling diseases and insect pests, and has the problems that the prevention and control effect is reduced year by year due to the fact that fig rust bacteria have different degrees of drug resistance to the traditional various medicaments along with long-term and massive unscientific use of medicaments. In order to achieve the above purpose, the present invention provides the following technical solutions: A bactericidal composition is used for preventing and treating fig rust, and is prepared by compounding trifluoropyridylamine and flusilazole or metrafenone. Further, the mass ratio of the trifluoropyridine amine to the flusilazole is 1-40:15-1. Further, the mass ratio of the trifluoropyridinamine to the phenol cycloheximide is 1-20:20-1. The bactericide comprises the bactericidal composition, wherein the mass of the bactericidal composition accounts for 0.75-55% of the total mass of the bactericide. Compared with the prior art, the invention has the following beneficial effects: (1) According to the invention, the trifluoropyridine amine and the flusilazole or the phenol cycloheximide are compounded according to a certain mass ratio, the compounded combination shows a synergistic effect on the fig rust pathogenic bacteria, namely the fig summer rust in a certain mass ratio range, and compared with a single component, the bactericidal composition can improve the control effect on the fig rust, delay the generation and development of the drug resistance of the pathogenic bacteria and reduce the drug resistance risk of the bactericidal composition. (2) The bactericidal composition can widen the compound combination of the trifluoropyridine amine and provide support for fully developing compound medicines of the trifluor