Electronic Accessories,Die Casting Engine Cover,Aluminum High Pressure Die Casting,High-Pressure Die Casting Part Ningbo Zongchi Machinery Technology Co., LTD , https://www.nbdiecastservice.com
Domestic and foreign countries have used lights to predict and control various pests in cotton fields and other crop fields since the 1960s. The application of insect traps has promoted the harmony between man and nature, and has made important contributions to agricultural and forestry production and ecological environmental protection in China.
The commonly used light source for attracting insects is electric light, gas light, or oil light. Some mountainous regions also have direct fire as a light source for attracting insects. Since the 1970s, new light traps such as black light lamps have been widely used in pest prediction and pest control.
In recent years, with the development and application of high technologies such as electronic technologies and solar energy technologies, the diversified development of insect trap functions has been promoted, and new energy-saving and highly effective insect traps such as LED trap lamps and solar intelligent trap lamps have emerged. , and quickly applied to agriculture, forestry, aquaculture and other related fields, and achieved remarkable results.
There are many types of insect traps, but they are used in large areas and are representative of black light, high pressure mercury lamp, frequency vibration trap lamp, and solar intelligent trap lamp.
1. Black light Black light is a kind of insect trap lamp widely used in agriculture at home and abroad. It is a special gas discharge lamp that emits 3300-4000nm UV light, which is human-insensitive light, so the lamp made by this human insensitive ultraviolet light is called a black light. The black light consists of a high-voltage grid extinguisher and a black light bulb. The black light bulb looks like an ordinary fluorescent or incandescent light bulb. The light is used to lure the pests into the effective electric field of the high-voltage power grid. When the pest touches the power grid, it is instantaneously generated. High-voltage arcs knocked down pests. It is still one of the most effective and practical survey methods to predict and forecast forest photo insects with phototaxis using black light. According to the data currently available, black light lamps can trap nearly 300 species of insects, of which lepidopterous insects are most common.
Second, high-pressure mercury lamp High-pressure mercury lamp traps kill insects, forecasting and species survey in one, with a special high-pressure mercury lamp as a power source, radiation can be perceived by the insect spectrum, the spectrum is harmless to the human body and the environment.
When the night falls, the light turns on automatically and a yellow-orange light is emitted to attract pests and swarms. They all touch the high-pressure network and die.
The use of high-pressure mercury lamps can induce large numbers of adult insects, reduce the amount of eggs and pests in the field, thereby reducing the pressure of chemical control and achieving the purpose of controlling pests.
Wei Guoshu et al studied the trapping effect of high-pressure mercury lamps and double-wave lamps on the adults of Helicoverpa armigera. After a comprehensive comparison of the amount of moths, eggs, larvae and natural enemies of each treatment, high-pressure mercury lamps are considered to be superior to double-wave lamps. .
Third, the frequency vibration type insecticidal lamp frequency vibration type insecticidal lamp utilizes the light and wave characteristics of pests, the light wave is set within a specific range, the lamp is equipped with a frequency-vibrating high-voltage power grid to contact, so that the insects can be bagged, and the reduction is achieved. The amount of eggs laid off in the field reduces the number of pests and plays a role in pest control. Since its introduction in 1991, the frequency-vibrancy pest-killing lamp has attracted people's favor due to its good insecticidal effect, non-introduction of chemical substances, cost savings, and protection of the ecological environment. It has also been used in agricultural and forestry, wine brewing, and warehousing industries. Wide application in prevention and control, and made some contribution to China's agricultural and forestry production and ecological environment protection.
The main advantages of frequency-vibration insecticidal lamps are their ability to trap and kill insects, their variety of trapping and killing insects, their large number of traps and kills, their wide range of applications and their large area. Its inadequacies are the destruction of biological diversity, the killing and killing of beneficial insects, the killing and injuring of non-target pests and unprofitable and harmless insects, threatening the natural ecological balance. Therefore, it cannot be used blindly in production.
Fourth, solar intelligent trap lamp Solar insect killer lamp is also called solar intelligent trap lamp, which is based on the application of frequency vibration type insecticidal lamp. It uses low-light (amorphous silicon) solar panel, free It maintains Ni-MH battery technology, converts solar energy into electrical energy for storage and use, and has functions such as light control, rain control, time control, voltage protection and intelligent anti-theft. It uses the best wavelength, instantaneous light color and light wave resonance principle to trap and kill pests.
The six sciences of mechatronics, physics, electrochemistry, optics, entomology, and botany are integrated into one, and many of the technologies and performance indicators of solar energy traps have reached the international advanced level.
Solar intelligent trap lights mainly have the following characteristics:
1 High efficiency. In June 2009, the density of insect populations on green beans planted in solar-controlled light traps in and outside the Organic Vegetable Alliance of Jieshui Township, Xushui District, Xinyu City, Jiangxi Province was investigated. 100 strains of green beans were investigated in the lighting control area. , There were 55 larvae of Etiellazinckenella (main pests), 50 larvae, and 1.05 larvae per plant. There were 654 larvae, 576 larvae and larva population density of 12.88 per plant outside the light control area. The results showed that:
After using solar traps, the density of insect population was reduced to 91.85%. The investigation found that, compared with the frequency-vibration insecticide lamp, due to the lamp head is relatively close to the ground, the solar intelligent trap lamp on vegetables with smaller body size, weak flying ability, lower flying height insects such as Plutella xylostella, yellow The insects such as Phyllotreta striolata, size leafhopper, etc. have a better trapping effect. In addition, because of the close proximity of the lamp head to the ground, many pregnant females are susceptible to fluttering.
2 selectivity. The solar intelligent trap lamp selectively controls natural enemies of pests and maximizes trapping and killing of major pests by selecting specific light waves (specific wavelength and vibration frequency) and turning off the light time control (time control). Due to the double influence of trapping lamp trapping and natural natural enemies attacks, the density of pests will gradually decrease, which will help control the main pest population below the economic threshold.
3 Energy saving and safety. The use of solar energy, no alternating current, no pulling wires, and cost-saving, traplights are safe for humans and animals.
4 Specificity. At present, the optimal wavelength and frequency for the specific trapping of major pests of rice, vegetables, fruit trees, tea, and corn, etc. have been studied, and the dedicated insect traps for the major pests of different crops have also entered experimental verification and large-scale promotion. Application phase.
Solar intelligent traps have protective effects on beneficial insects, non-target insects, and neutral insects in the ecosystem.
With the improvement of living standards, people will pay more and more attention to environmental protection and food safety. Green foods and organic foods will also emerge in large numbers. The technology of insect traps will surely continue to develop and show a wider and wider application prospect.
For more than half a century, humans have used chemical pesticides to control pests, resulting in increased resistance to pests, re-emergence of major pests, and secondary pest production (Resurgance), pesticide-contaminated food, and the environment. The emergence of problems is not conducive to the sustainable development of agriculture. Food safety and environmental protection are related to human survival and development. Some scholars believe that the single chemical control of crop pests and diseases by humans will be an embarrassment that will never be won, and will eventually lead to a series of irreversible ecological disasters. Using insect phototaxis, light trapping and killing agricultural pests is an important physical control measure, and is an important part of comprehensive pest control.