The fungicide is mainly a type of pesticide for controlling plant diseases caused by various pathogenic microorganisms, and generally refers to a fungicide. Internationally, it is generally a generic term for agents that control various pathogenic microorganisms.
A class of pesticides used to control plant diseases caused by various pathogenic microorganisms, generally referred to as fungicides. However, internationally, it is generally a generic term for agents that control various pathogenic microorganisms. With the development of fungicides, sub-classes such as bactericides, viricides and algicides are distinguished. According to the survey, there are more than 80,000 kinds of pathogenic microorganisms (fungi, strong bacteria, rickettsia, mycoplasma, viruses, algae, etc.) harmful to plants all over the world. Plant diseases cause huge losses to agriculture, and crops around the world are thus reduced by an average of about 500 Mt per year. In history, there have been many disasters caused by a certain plant disease epidemic, causing severe famine and even starving a large number of people. The use of fungicides is a cost-effective method of controlling plant diseases.
Precautions for the use of fungicides for root disease prevention:
First, the drug selection should be reasonable: choose a biocide with strong pertinence and high therapeutic function, do not blindly use drugs, reduce waste as much as possible, prevent delays in prevention and control, and reduce drug efficacy.
Second, the use of concentration should be appropriate: the fungicide should be mixed with amino acid liquid fertilizer or hormones that stimulate root development. The concentration of the liquid should be no more than 1500 times to prevent soil water content (soil moisture concentration around the crop roots). Too high. Do not pour large water into the shed within 7 days after root irrigation, otherwise the concentration of the liquid will be reduced, which will affect the sterilization and disease prevention effect.
Third, the soil biology should take into consideration: the selected pesticide fungicide can not destroy the biological population and ecological balance inside the soil after being applied to the soil. If the shed has been used for bacterial fertilizer, try not to use root fungus to prevent disease. If crop diseases begin to occur and there is a rapid tendency to spread, it is a different matter, that is, do not consider the problem of bacterial fertilizer, and should immediately implement root irrigation to reduce losses.
Fourth, the remedy of remedies should be timely: if the phytotoxicity reaction occurs after root irrigation, if there are symptoms such as wilting, yellowing and stagnation of the plant, it should be remedied in time. Remedial measures: quickly pour water once to dilute the concentration of the liquid in the soil; promptly use rooting agent or love to take over or Yunda 120 to spray while rooting to relieve the phytotoxicity, prompt the roots to recover as soon as possible, let the plants turn Into normal growth.
The China Pesticide Network reminds everyone that the use of fungicides for root irrigation and control should strictly follow the above four points to improve the efficacy and avoid phytotoxicity.
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