Guide to Selecting and Using Insect-Killing Lamps in Facility Agriculture: Principles, Installation, and Key Points for Buying Second-Hand
When growing vegetables in greenhouses and glasshouses, the most troublesome thing is insect pests. Spraying too much pesticide risks residues, while spraying too little cannot keep the insects under control. This is where insect-killing lamps come in handy. They are a physical control tool that uses the phototaxis of pests to attract night-active insects with a light source of a specific wavelength, and then kills the insects with a high-voltage electric grid shock or fan suction. Without relying on chemical pesticides, they can reduce pest population density, making them especially suitable for green prevention and control in facility agriculture.
Where insect-killing lamps are suitable to be installed and how to install them
Insect-killing lamps mainly target pests such as tobacco cutworm, beet armyworm, diamondback moth, and cutworm, which are adults that are active at night and have phototactic habits. They have limited effect on non-phototactic insects such as aphids and red spiders, so they are more of a component of integrated control and cannot completely replace other control measures. During installation, the lamp is generally required to be hung slightly higher than the top of the crop. In a greenhouse, it can be hung above the walkway or in the middle of the greenhouse. Be careful to avoid reflective film and strong supplemental lighting, so as not to interfere with the insect-attracting effect. The electric grid should be cleaned regularly of insect carcasses to avoid short circuits; in rainy weather or when humidity in the greenhouse is too high, it is best to cut off the power, which is both safe and can extend the service life of the equipment.
What to pay attention to when purchasing and buying second-hand
There are many brands and models of insect-killing lamps on the market, and the power, light source type (such as frequency-vibration lamp tubes, LED light sources), and power supply method (mains electricity, solar power, storage battery) all differ. When purchasing, first calculate your own greenhouse area and the main pest species, then choose according to the applicable scope stated in the product description. Do not focus only on price. If you are considering buying a second-hand insect-killing lamp, it is recommended to focus on checking these items: first, the degree of aging of the lamp tube. If the lamp tube is blackened and the brightness has clearly decreased, the insect-attracting effect will be greatly reduced, and the lamp tube is a consumable part, so replacing it with a new one is another expense; second, whether the electric grid is deformed and whether the insulation is intact. It is best to power it on and test it to see whether it can work normally; third, whether the power cord and waterproof connector are damaged. Humidity in greenhouses is high, so hidden leakage hazards cannot be ignored; fourth, ask the seller about the service life of the equipment and request relevant documents. In addition, many regions have purchase subsidy policies for green prevention and control equipment such as insect-killing lamps, but standards vary from place to place. Before purchasing, it is best to consult the local agricultural machinery department in charge.
Overall, insect-killing lamps are equipment with a one-time investment and long-term benefits. Whether buying new or looking for second-hand, the key is whether the equipment condition is good and whether it matches the actual needs of your own greenhouse. Used well, they can not only reduce the amount of pesticides but also provide a stronger guarantee for the quality of vegetables and fruits.