Research progress of artificial light for pest control

Agriculture is the foundation of the national economy, on the whole, in many areas of modern agriculture, such as pest control has a very close relationship with artificial lighting. In the aspect of agricultural pest control, LED light source with specific wavelength can be used to lure and kill pests, reduce pesticide application and achieve safe and green production.

In the aspect of planting, it has a high sensitivity to ultraviolet light and blue light, which can be induced by the high voltage power grid, and the killed pests can be a good fertilizer. The spectrum of the main products used for insect trapping is as follows:

The higher the ultraviolet light, the better the effect of the temptation, so the actual use of the outdoor agricultural use of the lamp is basically a high output fluorescent lamp.

The insect's vision is different from the human eye's vision. The use of artificial light and control technology in the field of agricultural pests by trapping light (UV) pest control, study the phototaxis of insects by UV developed insect-o-cutors fluorescent lamp, suitable for relatively closed greenhouse, plant factory. In order to reduce the fruit, such as peach, citrus and other insect pests, Japan in the 60s of last century in the country popularized a yellow light moth. By 2000, it was found that the maximum wavelength of insect pest activity could be inhibited by 540~545nm. Therefore, the ideal spectral distribution of the moth killing lamp with high efficiency for controlling the function of Spodoptera exigua should be in the range. The latest generation of anti moth technology is the use of green light moth, the adverse effects on plants is very small.

In addition, in artificial light induced disease resistance, in recent years, a number of practical application of artificial light to achieve the practical application and the cultivation of disease resistance induction technology was published and put into use. Now, the actual use of disease prevention technology is: green light irradiation induced plant disease resistance of low technology and the use of ultraviolet (UV-B) irradiation to induce disease resistance to plant disease prevention techniques.

Edible fungi, in addition to the regulation of the growth and development of edible fungi, LED light source in the production of edible fungi pests prevention and control has also been applied. The experiment shows that the green, white, yellow lamp on pest trapping effect is far higher than the total amount of blue and pink lamp. Among them, green shows good trapping effect on many important pests.

In short, the physiological characteristics of life, habits, plants and insects based on that light wavelength and insect action, physiological changes of plants, find the association is very important. Artificial light to control pests and diseases of the technology can purify the environment, protect the ecosystem. The future use of new light sources, new pest control technology is also worth looking forward to.