In the work, I often contact farmers and friends to use pesticides. There are often some unscientific use cases:
1. There is no medicine at the beginning of the disease, and no insects are needed. Most of the pests and diseases are in the early stage of the disease, and the symptoms are very light. At this time, the effect of the medication is good and the dosage is small. After a large-scale outbreak, it is difficult to control the drug.
2, the concentration of the drug solution is as high as possible. When farmers use pesticides, in order to reduce the workload, they often add more medicine and less water. When spraying insecticides and fungicides , sufficient water consumption is very important, because the eggs and germs are concentrated in the soil on the back of the leaves and adjacent to the roots. When the application is small, it is difficult to spray the whole plant. The residual eggs and residual bacteria in the dead corner are easy to erupt again. Increasing the concentration can also strengthen the resistance of bacteria and pests. If the concentration exceeds the safe concentration, phytotoxicity may occur. When the foliar fertilizer is used at a high concentration, it can not only be absorbed by the crop, but also causes the body fluid of the crop to be extravasated, resulting in physiological drought. When the hormonal pesticide is too high, it may be counterproductive or deform the crop. Therefore, simply increasing the concentration of the drug solution is often counterproductive.
3, prevention and control once, once and for all. Insecticides and fungicides can achieve obvious results in the occurrence of pests and diseases. However, with the loss of pesticides and decomposition, and the infection of adjacent plots, there are still hidden dangers, which should be 7 to 15 days apart. Take the medicine several times to achieve the best control effect.
4, sewage, drowning dispensing. Sewage and swill contain more impurities, and the dispensing will block the nozzle, which will also destroy the stability of the liquid.
Low efficacy.
5. Apply in rainy days and high temperatures. Spraying the wind will make the pesticides drift; when applied in rainy days, the liquid is washed away by rain to reduce the efficacy; when applied at high temperature, it is prone to phytotoxicity and poisoning. Therefore, the optimal application time is: 8:00 am to 11:00 am, and 4:00 pm to 6:00 pm. The weather is fine and the breeze is applied.
6, a drug used. Long-term use of the same pesticide, the most likely to cause pest resistance, reduce the control effect, so should be used alternately.
7. Abuse of pesticides. According to the different types of crops, control objects and pesticide properties, the corresponding pesticides should be used to achieve the right medicine. At the same time, it should avoid blindly increasing the application rate, resulting in enhanced pest resistance, reducing the control effect, and easily causing phytotoxicity.
8. Applying before harvesting, the safety period is not enough. Since pesticides can cause residues on crops, the safety period is not enough and residues can cause food poisoning.
9, safety awareness is not strong, wear masks when applying drugs, can not smoke, eat. After application, wash the exposed skin with soap, rinse mouth, and bathe conditionally.
More pesticide knowledge , please pay attention to China Pesticide Network
Extra Transparency Self Adhesive Switchable Film
Extra Transparency Switchable Smart Self-Adhesive Film Tint could work in 90% super clear clarity, manufactured with a self-adhesive AB glue layer on one side which makes it easy to stick to both new and existing glass
A simple ON - OFF mode switches the film from being clear (transparent) to frosted (opaque). In its frosted state the film acts as an electronic blind providing privacy and security for any glass, window or partition.
Super Clear Self-Adhesive Intelligent Smart Film is available in widths up to 1830mm and can be cut to any size and any special shape. Custom shapes and sizes are available and multiple pieces can be joined together to create large tempered panels or windows
Extra Transparency Self Adhesive Switchable Film,Non Adheive Smart Film,Transformador Pdlc Smart Film,Dimming Smart Glass Pdlc Film
Shenzhen YuGuang New Material Co.,Ltd , https://www.ygsmartfilm.com