In recent years, the occurrence of pests and diseases in cotton fields in Langfang City was severe and had a great impact on cotton production. Therefore, we used the insecticidal lamp produced by Zhejiang Top Instrument to carry out the direction of pests in cotton fields. The results obtained were very good and worthy of great efforts. Promotion.
First, the working principle of the insecticidal lamp
By using the characteristics of strong phototaxis, wave-like, color-rendering, and tropism information of pests, the wavelengths and wave frequencies of light are set within a specific range, and light and long-distance waves are used at short distances to create the nature of pests themselves. The information lures the adult insect flutter lamp, and the external lamp is contacted with a frequency-vibration type high-voltage power grid, so that the insects fall into the insect bag under the lamp.
Second, the main technology
1. The choice of lamp
According to needs, generally choose 220 volts, power 30 watt killing lamp, each lamp can control 2 to 4 hectares.
2. Hanging lamp time
In our district, when the wintering surrogates begin to feather from the beginning of May (the average temperature on the day is stable at 20°C), the lights are started. Because the cotton bollworms overlap for generations, they are generally switched on from early May to mid-August.
3. Hanging lamp technology
The crossarm type is generally used. The bottom of the lamp is 1.2 meters higher than the cotton ground. After the lamp is installed, the insect bag is installed and it can be connected to the electricity.
4. Receiving insect technology
The cotton bollworm usually takes 3 generations in our district in 1 year. During the peak period of the 3rd generation of moths, we must collect insects on time. We collect insects early in the morning and we need to cut off the power supply when pests are collected to clean the pests and dirt on the high-voltage power grid. In the insect bag, the insect pests in the insect-infested bags are brought out of the field and buried in plastic bags.
5. Spotting prevention
During the peak period of cotton bollworm damage, the cotton within 667 m2 around the insecticidal lamp must be regularly protected with Bt preparations and virus granules to prevent cotton bollworms that are not induced harm to cotton.
6. Rationalization
In the peak period of cotton bollworm damage to the cotton field to view, usually 3 days to see 1 times, view the hazards of bollworm in cotton fields, if it is found to have the hazard of bollworm, and to achieve the prevention and control indicators in time to use Bt preparation, virus granules to prevent.
Third, economic analysis
The cost of insecticidal lamps is 300 yuan each, and the cost of wires, wooden poles, electricity bills, and labor costs 20 yuan per 667m2, and the total cost is 25 yuan per 667m2. After using the insecticidal lamp, the cotton in our district will increase at least 150 yuan per 667m2, remove the cost, increase income by 667m2, increase 125 yuan, and increase income by more than 200 yuan. The economic benefits are significant, and it is a technology worthy of promotion in large areas.
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