Every bactericide or high-efficiency bactericide has a good bactericidal effect when it is used. However, as the dosage is continuously increased and the range of use is expanding, cases of increasing resistance have emerged. The most prominent is esfenvalerate, which is often called "the blessing of justice" in the advertisements of the 1980s. It will soon be impossible to achieve justice, because even if it is increased by dozens or even hundreds of times Or the concentration of the drug can not kill the pests. This is actually because pests develop resistance, which is the ability to endure the killing of most individuals in the normal population and develop them in their populations.
In fact, individuals with different degrees of sensitivity to pesticides exist in natural pest populations. The use of pesticides is actually the process by which insecticides play a selective role in insect populations. Each time the fungicide is used, the relatively resistant individual is left behind, killing the relatively sensitive individual, and the level of resistance of the pest population is more or less increased.
It has been identified that: (1) drug resistance is related to pests and their living habits. The life history is short, the number of breeding algebras per year is large, and the pests that have many opportunities to contact with the pharmacy, such as mites, shells, mites, mosquitoes, etc., are the most susceptible to resistant populations; (2) one pest is resistant to one pesticide, often Other pesticides of the same type are also resistant; such interactions are not easy to occur between drugs with different insecticidal mechanisms; (3) The same pesticide is used continuously for a large number of times or with a high concentration of treatment, and resistance is formed rapidly, and vice versa.
Knowing this, we can prevent or delay the rise of pest resistance through rational use of drugs. To this end, we advocate the adoption of comprehensive prevention and control policies including breeding, promotion of resistant varieties, improvement of cultivation techniques, and development of various technologies such as biology and physics to minimize the number and dose of chemical control.
The second is to choose pesticides with different mechanisms of action, mixed use and inlaid application.
The third is to improve the application of pesticides, such as symptomatic medication, timely spraying, selection of high-efficiency equipment, spraying in place, etc., to maximize the killing effect.
Modern Magnetic Track Lighting consist of aluminum profiles with integrated electric wires.The voltage inside the track is 48v ,safety.So DC48V magnetic track lighting system can also be used in places within easy reach .Available accessories and angle connectors allow you to create complex systems not only on the ceiling .
How to use magnetic track lights to achieve various lighting methods? Now the use of magnetic lamp is often used in lighting design lamps, with the right will become a bright spot in the design, with the wrong will form a visual disaster. So how should we use magnetic track lights to achieve general lighting, key lighting, local lighting and decorative lighting?
1. Magnetic track lamp in general lighting (basic lighting, ambient light) Light fixtures mainly provide light to Spaces such as ceilings, walls, floors, curtains, etc.
Ceiling and ground belong to horizontal plane lighting, which can adopt immobile linear module (floodlight and grid). The floodlight module provides wide and uniform soft light for the environment, while the grid module is suitable for anti-glare and focusing on the tea table of the living room sofa to enrich the level of environmental lighting.
These two modules are also suitable for walls, curtains and other facades to achieve the rhythmic wall washing effect of light spots, which is similar to the effect of down lights and spotlights. It is necessary to pay attention to not mixing and matching to avoid light spots.
Magnetic track light, as the name implies, is to increase the magnetic connection structure on the basis of the traditional track lamp. On the advantages of the track lamp,it is more convenient to install and remove the lamp components, which is convenient for daily maintenance and maintenance.At the same time, because the Magnetic Track Rail is low-voltage power supply,the magnetic lights housing can be removed from the drive, so the track and lamps are more compact and delicate, in the case of power permits, according to the needs and uses, arbitrary splices of lamps and lanterns, more convenient and fast.The formation of a unique sense of design.
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