A: This problem must be addressed in two aspects. First of all, from the current situation of prevention and control, the proportion of chemical pesticides used is still too large, which has seriously caused public hazards. The "3R" phenomenon has actually increased. The major outbreaks of cotton bollworm that occurred in successive years like the 1990s and the outbreak of rice planthoppers in recent years should all be attributed to the "3R" phenomenon. The current problem is that we do not use chemical agents and we cannot find practical alternatives at one time. Agricultural control and biological control, due to relatively high technical difficulty, are still difficult to popularize and apply in a wide range. However, light trapping in physical control does not require special requirements for the user, and the method of use is also very simple. Therefore, it is widely available, so we believe it should be given high priority. However, it should be noted that the pest control lights on the market are mixed, which brings certain difficulties to the selection.
Second, we believe that the method of using light to trap and kill pests has not received due attention, and its value needs to be further digged. Although the use of the light trapping method has been used for decades, the reason why it has not been promoted so far has been analyzed for several reasons. One is that basic research has not kept up, including the mechanism of phototaxis of insects, the similarities and differences in the phototaxis of insect species, etc. Second, light source manufacturing research has not kept pace. Of course, this research relies on the previous study; the third is the use of insecticidal lamps. Need to be improved. Because most of these appliances are used in the wild, there are quite a few technical problems. In fact, the requirements for insecticide appliances are nothing more than such points, insecticidal rate, function, and service life. From our current research results, there is no problem in comprehensively improving and improving the use of such appliances. We urge that in order to improve the increasingly serious environmental problems as soon as possible, due attention should be given to physical control, and basic research in this area of ​​technology should also be strengthened.
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