The use of pesticides is the most common method for pest control. In the process of using pesticides, farmers often have poor efficacy. There are also some new medicines, new ingredients, sufficient content, and dosage forms. The new "good medicines" are being used by farmers due to poor efficacy. With the "counterfeit medicine" hat on hand, there are not a few pesticides that have been cockroached. Through understanding, there are many factors that affect the efficacy of pesticides. Pesticides' own factors affect the efficacy of drugs The composition, physicochemical properties, and dosage forms of pesticides all affect the efficacy of the drug. Different dosage forms with the same content of the same ingredient will have differences. The production technology and the production capacity of different companies will vary, and the efficacy will vary. Excluding some companies to make a fuss about the content, stealing the content affects the efficacy. Disease diagnosis is inaccurate, there is a deviation in medication At present, the diagnosis of diseases is mostly based on the experience of dealers and farmers. Because of the amount of experience, confusion between fungal diseases and bacterial diseases occurs from time to time. When fungi and bacterial diseases are mixed, many farmers categorize them as fungal or bacterial diseases, and use a single pharmaceutical agent for prevention and treatment. Such diagnosis and treatment can easily miss the disease during the best period of prevention and control, resulting in some pesticides failing to meet the farmers' expectations. The effect of "multi-effects" on the disease will produce the impression of poor efficacy. Spray quality affects efficacy The quality of spray directly affects the level of efficacy. At present, in some places, conventional spray equipment is used, the sprayed droplets are too large, bounce occurs when the droplets land on the surface of the crop, and about 50% of the liquid liquid falls on the ground, resulting in failure to fully exert the efficacy. The same amount of liquid medicine, if the diameter of the droplet is reduced by half, the number of droplets obtained can be increased by 8 times, and the efficacy can be greatly improved. Many farmers are concerned that the liquid cannot be completely immersed in the surface of the crop and increase the amount of water used. This practice will not only improve the efficacy but also reduce the efficacy. Because the droplets that can adhere to the surface of the crop leaves are limited, when the spray volume exceeds a certain limit, the fine droplets on the leaves will gather into a large droplet to fall and reduce the amount of pesticides on the leaves. In order to improve the quality of the spray, it is necessary to improve the existing spray equipment, reduce the aperture of the spray film, reduce the diameter of the spray droplets, and maintain a distance of more than 20 cm between the sprayer and the crop when spraying, so as to form a good atomization effect, and at the same time when spraying Adding the silicone spray additive “Spreading through†can reduce the surface tension of the liquid and reduce the loss of the liquid due to bouncing. It is particularly prominent in the use of thicker waxy crops. The concept of disease prevention needs to be changed For the prevention and control of crop diseases, the common practice of many farmers is to “see the disease and apply drugs, and re-treat light protectionâ€. Some farmers indicated that there are many “specific drugs†for the single dose of dimethomorph, metalaxyl, and cymoxan in order to treat diseases, and they are controlled by such pesticides before the occurrence of the disease. Each medication is added. Above variety. This kind of "actively attacked" disease prevention and control methods are widespread in many places. Once it is found that the efficacy has been reduced, it will increase the dosage. If a single agent is used for a long time, it will inevitably cause the disease to develop premature resistance. When the disease is outbreak, it will face a situation of no cure. The existing concept of prevention and control should be changed, and the principle of “prevention as the mainstay and comprehensive prevention and control†should be adhered to. Scientifically select pesticide species and avoid mixing of multiple preparations with the same active ingredient. It is recommended to alternate the use of different ingredients and mix it with protective preparations to delay use. The occurrence of resistance. There are misunderstandings in pesticide blending At present, farmers want to solve all diseases and insect pests with a single dose of medication. Frequently, pesticides of different types and dosages are reconstituted. There are many problems. First, there are misunderstandings in the double dilution. The correct method is to dilute several kinds of pesticides to be used, dilute one type, then pour it into the sprayer and dilute the next one, and then proceed in order, so as to really play the role of secondary dilution in improving the efficacy. Second, different dosage forms of dosages affect the efficacy of drugs when they are mixed. The medicines and fertilizers were foliar fertilizers, wettable powders, water dispersible granules, suspensions, microemulsions, water emulsions, liquids, and emulsifiable concentrates in this order. The stability of the mixed pharmaceuticals was good. Third, the pH of the drug affects the efficacy of the drug. Improper mixing is prone to acid-base neutralization. For copper preparations that have a relatively large percentage of bacterial diseases, the liquids are prone to discoloration and sedimentation after compounding with other drugs. Lighter drugs may weaken, and severe cases may cause injury. Temperature and humidity affect the efficacy Humidity and temperature will affect the efficacy of the drug. For example, when the dew is not dry, the dew will dilute the concentration of the drug. If the temperature is too high or too low, the efficacy of the drug will be affected. In general, the temperature is within 20°C to 30°C. In short, blindly hoping for "special effects drugs" is irrational, "drugs to disease" of the "Shen Dan Miao drugs" can be met, in order to improve efficacy, it is necessary to start from the above points to find a limit to improve drug efficacy The factors, as far as possible to eliminate unfavorable factors, maximize the effectiveness of the drug. Dynamic disinfection is a process of disinfection and cleaning of air and surfaces in indoor Spaces. A Air disinfector Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com
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