Fungicide for Lawn in-depth Demand Report

Inorganic fungicideSuch as sulfur powder, stone sulfur mixture, copper sulfate, mercuric mercury, lime Bordeaux liquid, copper hydroxide, cuprous oxide and the like.Organic sulfur fungicideSuch as dexamethasone, rust sodium, thiram, daisen zinc, mancozeb, thiram and so on.Organic phosphorus, arsenic fungicideSuch as rice glutinous rice, gram sputum, ethyl aluminum phosphate, methyl chlorhexidine, chlorhexidine, rice foot green and so on.Substituted benzene fungicideSuch as methyl thiophanate, chlorothalonil, diclosan, pentachloronitrobenzene and the like.Azole fungicideSuch as powder rust, carbendazim, carbendazim, benomyl, thiabendazole and so on.Antibiotic fungicideJinggangmycin, polymycin, chunleimycin, agricultural streptomycin, antimycomycin 120, and the like.Compound fungicideSuch as dysentery, double-effect spirit, anthrax fumei, anti-virus 矾M8, nail cream copper, DT fungicide, metalaxyl · manganese zinc, seeding spirit · manganese zinc, methyl thiophanate · manganese zinc, widely sterilized Milk powder, metalaxyl-Fumei double wettable powder, etc.Other fungicidesSuch as metalaxyl, sclerotin, procymidone, chlorhexidine, sterilized dan, captan, tefolin, carbendazim, rumen, formalin, high fat film, bactericidal clear, Pythium, quetia, dimethomorph, manganese zinc, and the like.

Early fungicides were inorganic compounds, such as sulfur powder and copper formulations (see Bordeaux), which are still in use today. In 1914, I. Rim of Germany first used organic mercury compounds to control wheat smut, marking the beginning of the development of organic fungicides.In 1934, W.H. Tisdale of the United States discovered the bactericidal properties of dimethyldithiocarbamate, and organic fungicides began to develop rapidly thereafter. Developed in the 40s and 50s, there are three main series of organic sulfur fungicides: Fumei, Daisen (such as Daisen zinc) and trichloromethylthiocarbaimide, in addition to organic chlorine, organic mercury, Organic arsenic fungicides have also developed. Most of these fungicides are protective agents and have limitations in application.Since the 1960s, more chemical types of fungicides have emerged, the most important of which is the advent of systemic fungicides.In 1965, Japan developed the organophosphorus bactericide rice blast. In 1966, the United States developed the rust-free spirit. In 1967, the United States developed benomyl. In 1969, Japan developed thiocarbazone. In 1974, the Federal Republic of Germany developed oxazolone, 1975. In the United States, tricyclazole was developed in the United States. In 1977, Mexico developed the metalaxyl. In 1978, France developed aluminum triethylphosphate. The systemic agent represented by the above has become the mainstream of the development of fungicides since the 1970s. At the same time, agricultural antibiotics have also developed rapidly. Organic mercury, organic arsenic and certain organochlorine fungicides are being phased out due to toxicity or environmental pollution problems. A new generation of systemic agents has further expanded the market for fungicides due to improved control effects. By the 1980s, there were more than 200 types of fungicides. According to the survey, worldwide sales of fungicides reached US$2.54 billion in 1985, accounting for 18.4% of total pesticide sales.In 1984, the sales of systemic agents in biocides accounted for 44.2%, and non-endrols accounted for 55.8%. In the past half century, the development of fungicides has mainly focused on the prevention and treatment of fungal diseases, and the research and development of agents for controlling bacteria and viruses has not been sufficiently developed. Since the 1950s, China has mainly developed protective fungicides. Since the 1970s, it has begun to develop systemic fungicides and agricultural antibiotics, and has stopped using organic amalgams. Due to the complicated application technology of fungicides, the development speed is not as fast as that of pesticides. However, the protective effect of fungicides on agricultural production has been increasingly recognized by farmers. With the modernization of Chinese agriculture, the development of fungicides will surely accelerate.

There are two ways of action of fungicides: one is a protective fungicide, and the other is a systemic fungicide. The protective fungicide directly contacts the pathogenic bacteria in vitro or on the surface of the plant, killing or inhibiting the pathogenic bacteria, making it unable to enter the plant, thereby protecting the plant from the pathogen. These fungicides are called protective fungicides. They have two functions: one is to contact the pathogen after spraying, and directly kill the pathogen, that is, "contact sterilization"; the other is to spray the agent on the surface of the plant. In the above, when the pathogenic colony is exposed to the agent on the plant body and is poisoned, it is called "residual bactericidal effect".Different fungicides work differently. It is called a protective fungicide, that is, a protective agent, which is applied to the surface of plants before the infection of the pathogen; it can eliminate the infected bacteria at the application site, and is called a scavenging fungicide; it can be absorbed by plants and The system is called a systemic fungicide, which is also a systemic fungicide. Many scavengers are also systemic. Most of them have chemotherapeutic effects. Therefore, it is often practical to simply separate the bactericide into two modes of action: protective and systemic. Their mechanism of action can also be broadly divided into two categories:1. Interfere with the respiratory process of pathogens and inhibit the production of energy.2. Interfering with the biosynthesis of living organisms such as proteins, nucleic acids, and sterols. Most of the protective fungicides are products with a wide spectrum of sterilization and low bactericidal power. Systemic fungicides generally have stronger bactericidal power and narrower bactericidal spectrum, and some of them have specific toxicity to certain pathogens. Since the action point of the systemic agent in the bacteria is relatively simple, the pathogen is easily resistant by mutation of the genetic gene. In order to avoid or delay the occurrence of drug resistance, it is usually possible to select a suitable protective agent and a systemic agent to be mixed or rotated, so that a long and short complement can be obtained to obtain a better control effect. In the use, various application methods such as seed treatment, foliar spray and soil treatment should be adopted according to the characteristics of the disease occurrence.

Application in industrial circulating cooling water1. Quaternary ammonium salt fungicides: dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, tetradecyl dimethyl benzyl ammonium chloride, poly season Ammonium salt, etc.2, Chlorine-containing fungicides: chlorine, chlorine dioxide, sodium dichloroisocyanurate (euchlorine), sodium trichloroisocyanurate and so on.3, Peroxide fungicide: hydrogen peroxide, peracetic acid, etc.4, Oxazolines: isothiazolinone, benzisothiazolinone, etc.5, Aldehydes: glutaraldehyde, etc.Application in the waterborne coatings industryOxazolines: isothiazolinone, benzisothiazolinone, etc.