How to improve the effect of fungicides?

How to improve the effect of fungicides? Please introduce the method of how to use fungicides efficiently in production, which is very important to increase crop yield. the following introduces the methods to improve the effect of fungicides for reference: reasonable concentration of fungicides (including water agents and wettable powders) spray, the need to use water to mix or dilute the fungicides to an appropriate concentration. The concentration of different fungicides has its own special requirements. When configuring the concentration, it must be operated in strict accordance with the "operating instructions", and can not be increased or reduced at will. If the concentration is too high, it is easy to cause drug damage, but if the concentration is too low, it can not achieve the effect of using drugs to control diseases. Choosing the right spraying time generally speaking, spraying fungicide too late or too early will affect the control effect. Therefore, when using fungicides, the fungicides should be used in time according to the occurrence regularity and prediction of different crop diseases as well as the specific conditions of disease occurrence. Usually, the time for the use of fungicides should be controlled before the onset of the disease (protective medication) or in the early stage of the disease (prevention). To master the number of times to use fungicides, the times of spraying fungicides are mainly determined according to the length of residual period and meteorological conditions. It is usually sprayed every 10-15 days, a total of 2-3 times. In case of special circumstances, if there is rain after application, it should be sprayed in time. Improve the quality of drug use the spraying quality of fungicides includes the quantity and quality of spraying. The number of drugs should be appropriate, excessive use of drugs on the one hand will increase the cost, on the other hand, it is also easy to cause drug damage. If the drug is used too little, it can not achieve the purpose of drug use. Pay attention to the quality of medicine, spray requires fine fog point, spray evenly, spray all over the plant stem and leaf front and back, and strive not to leak spray. Careful mixture of drugs many fungicides are alkaline pesticides, so they can not be mixed with insecticides that are prone to decomposition and failure of alkaline substances, such as Bordeaux solution, stone sulfur mixture, etc., and cannot be mixed with 1605, dimethoate, dichlorvos, etc., otherwise it will cause "win-lose". Some fungicides such as carbendazim and Beauveria bassiana can not be mixed with Bordeaux solution, stone sulfur mixture, topazine and other fungicides, which will also cause the loss of physiological activity and insecticidal ability of insecticidal (bacterial) microorganisms. In addition, some mixed chemical reactions and drug damage can not be "random". Of course, not all fungicides can not be mixed with other pesticides, there are a few fungicides and pesticides can also play a synergistic role. For example, dimethoate mixed with acid bactericides such as dimethoate zinc or wettable sulfur or colloidal sulfur not only does not affect the efficacy, but also improves the efficacy. Pay attention to avoid drug resistance long-term use of a single drug (mainly internal inhalation fungicides), will lead to pathogens to develop drug resistance, even repeated use of drugs will not help, or even worse. In order to avoid disease resistance, on the basis of scientific selection of pesticides, we should do a good job in the alternating use of different types of pesticides, and it is strictly forbidden to use one pesticide alone for a long time. Click to get more fungicide use technology click to get more pesticide use technology