I have been in the agricultural industry for many years, knowing that dealers and farmers are troubled by the pests and diseases that occur in crop growth. I don't know what kind of medicine to use to control and treat. Faced with a variety of pesticide products on the market, it is difficult to choose! Now I will simply share my personal understanding of pesticide fungicides, I hope I can give you a reference.
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The use of butterfly valve is also relatively simple, easy to operate. And butterfly valve is widely used in all walks of life, is an important control fluid system equipment.
, for air conditioning system: A butterfly valve can control the flow of air conditioning pump and piping system to adjust the temperature of the air conditioning system, so that the air conditioning system can work more efficiently.
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4, used for heating system: butterfly valve can also be used for heating system, can control the flow of hot water piping system and adjust the temperature of the heating system, in order to meet the temperature requirements of the house.
In general, the use of butterfly valves is very wide, from air conditioning systems to water treatment, from power systems to heating systems, a variety of industries can benefit from the use of butterfly valves. Moreover, butterfly valve structure is simple, easy to maintain, for enterprises is also an affordable choice.
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Pesticide fungicides mainly have two modes of action:
1. Protective pesticide fungicides are applied on the surface of the host before the infection of the pathogens to protect or protect the crops from the pathogens. The disease prevention features: pesticide fungicides are particularly effective for airborne diseases, and more Downy mildew of crops, treating plant seeds or seedlings, preventing and controlling the infection of seed-borne diseases. After use, it can form a layer of gas-permeable, water-permeable and light-transmitting dense protective film on the surface of the crop. The membrane can inhibit the germination and invasion of the spores of the bacteria to achieve the effect of sterilization and disease prevention. It has a wide spectrum of sterilization and is highly responsive, making it difficult for bacteria to develop resistance.
Protective pesticide fungicides mainly have the following categories:
1. Sulfur and inorganic sulfur compounds. Such as sulfur suspension, due to body fluids, etc.;
2. Copper preparations, such as Bordeaux mixture, copper ammonia mixture, etc.;
3. Organic sulfides, such as thiram, daisen zinc, dailin ammonium, mancozeb, wait for 4. oxime imides, such as captan, and chlorpyrifos and sterilized dan;
5. Antibiotics, quercetin, polyoxymycin, etc.;
6. Other classes, such as chlorothalonil.
Second, systemic fungicides, such pesticides have a short history of application, and are a class of agents developed in the 1960s. It can be absorbed into plants by plant leaves, stems and roots and transported to the site of action in plants; such pesticides themselves or their metabolites can inhibit the growth and development of infected pathogens and protect plants from repeated attack by pathogens. Dye, kill or inhibit the pathogenic process of pathogens, remove disease or reduce disease. The application of the drug after the onset of the plant has a therapeutic effect. The systemic sterilization is strong, and the therapeutic effect is good, which makes the pathogenic bacteria resistant.
The systemic fungicides mainly have the following categories:
1. Benzimidazoles, such as benomyl, carbendazim, thiophanate and thiophanate;
2. Phenyl amides such as metalaxyl;
3. Dimethyl benzodiazepines, such as iprodione, vinyl nucleus, etc.;
In the prevention and control of crops such as fruits and vegetables, it is necessary to use protective pesticide bactericides for prevention and protection before crop diseases occur to prevent infection by bacteria. If the pathogen has been infested or has developed disease, it should be treated with a systemic pesticide fungicide. Our plant protection policy is “prevention-oriented, comprehensive prevention and controlâ€. Therefore, in the actual application process, prevention and protection should be based on protective pesticides and fungicides.