Using insect phototaxis, light trapping and killing agricultural pests is an important physical control measure, and it is also an important part of comprehensive prevention and control. The black-light trapping and adult worming techniques that have been popularized in China in the 1960s have achieved very good results. On this basis, the frequency-vibrancy insecticidal lamp that was awarded a national patent was introduced in the city in 2000. 1 Insect killing principle of frequency vibration type insecticidal lamp The frequency vibration type insecticidal lamp is based on the basic principle and application experience of black light lamp, and utilizes the light-wave characteristics of pests to apply frequency vibration wave as a new technology of trapping and killing insects to disinfestation equipment. , and widen the wavelength range of light to 320 ~ 400nm, increasing the types of trapping and killing pests; using light close distances, long-distance waves to attract pests, moths, and flies; external lights are contacted with frequency-vibrated high-voltage grids to achieve pest control hazards the goal of. The lamp consumes a small amount of electricity (30W) and is equipped with a high-voltage automatic protection device for the safety of people and livestock. It can be used for field control, and it can also be used as a pest monitoring and reporting tool. 2 How to use the frequency-vibrancy insecticidal lamp (1) Hang Jiaduo vibration-type insecticidal lamp on a firm object, and then place it in the farmland. The height of the hanging is 1.5m in the early stage of crop growth, and the later stage is slightly. Higher than crops. The lights are placed in a field-like layout in the middle of the field. The distance between the lights is 100 to 150 meters, and the control area of ​​each lamp is 4.0 to 5.3 hm2. (2) Turn on the power according to the lamp voltage (220V ~ 380V), press the switch, the indicator light will be in the working state. (3) Install and use the wintering or the first generation of the pest. The daily light turn-on time is from 21:00 to 4:00 the next day. 3 Effect of insecticidal lamp trapping and killing insect pests 3.1 Insect trapping insect trapping amount According to the 2001 trial survey, the lamp was installed from June 8th to June 20th, 4d with a total of 38.5kg of insect traps. The average insect trapping amount per lamp reached 0.48kg. . 3.2 Insect killing and pest killing The type of vibrating insecticidal lamp has a trapping and killing effect on a variety of pests (Table 1), including 21 species such as cotton bollworm, ground tiger, scarab, pod moth, cockroach, noctuid, etc. It is a significant effect on the trapping effect of Lepidoptera noctuidae pests. Table 1 trapping and killing adult species of frequency-vibration type insecticidal field 3.3 Sedulous killing effect of insecticidal lamp on Spodoptera litura: Spodoptera litura has strong phototaxis, so the trapping effect of frequency-vibration type insecticidal lamp on Spodoptera litura is very obvious. According to the Xu equation, in the vegetable field experiment in 2000, 5,840 adult Spodoptera litura adults were ensnared by the 47d5 xenon lamp, including 3 158 female moths and 2,682 male moths, with a sex ratio of 1.18:1. In the trapped female moths, 67.7% of the females were completely spawned and 19.4% were partially spawned. 3.4 Effect of Insecticidal Lamps on Natural Enemies in Vegetable Fields The insecticidal lamp itself cannot select pests or beneficial insects, but Ye Shuguang has reported that the frequency-vibrating insecticidal lamp has little effect on natural enemies. From July 15th to August 2nd, 2000, a total of 28 natural enemies were hunted and killed by 15 lamps. They were 4 ladybugs, 3 lice, 3 larvae, 2 locusts, 5 locusts, and 14 fly lice. The pests were trapped at the same time. 4 158 heads, benefit ratio 1:148.5. The data indicates that the frequency-vibration insecticidal lamp is safer to natural enemies. 4 Problems in the promotion and application of frequency-vibration insecticidal lamps in vegetable fields (1) Frequency-controlled insecticidal lamps have a large area of ​​control, but at present, the area of ​​vegetable farmers under the current system is small, so it is necessary to coordinate the common lighting of farmers in the vegetable areas. Work, it is best to promote the application of pollution-free vegetable base. (2) There are many species of vegetable pests, and their requirements for light waves are not the same. Therefore, adjusting the light wavelength of the insect killer according to the main population of pests in different vegetable fields is necessary to achieve the most satisfactory insecticidal effect. (3) The frequency-vibration insecticidal lamp has high requirements on the power supply and more vulnerable parts. In the process of popularizing the lamp, it is necessary to strengthen the management and maintenance of the lamp and ensure and increase the efficiency of the use of the insecticidal lamp. 5 Summary Vibrating insecticidal lamp has a wide insecticidal spectrum, large insecticidal capacity, relatively safe to natural enemies, and no pollution. If it can be used together with insecticidal plates, sex attractants and non-toxic and harmless biological pesticides, it can effectively control vegetables. The hazards of field pests are suitable for the production of pollution-free green vegetables.
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