The leaf miner can harm a variety of crops and is a typical agricultural pest in the agricultural field. For the prevention and control of leaf miner pests, in the past, chemical control, that is, spraying pesticides and insecticides, has been adopted, and now with the rise of ecological agriculture As well as the continuous introduction of green prevention and control products, we have more and more choices in the prevention and control of leaf miner in the agricultural field. Among them, the yellow insect board is used to trap insects such as leaf miner, and it is environmentally friendly and low in cost. It is a kind of prevention and control method that many modern farmers like very much. The leaf miner is a species of the genus Diptera, commonly known as pea leaf miner, beet leaf miner, Liriomyza sativae, Liriomyza huidobrensis, Astragalus membranaceus, rice leaf miner, etc. It happens mostly on vegetables. The pests such as leaf miner are highly harmful, concealed and resistant, so it is difficult to control them in a traditional way. The prevention of pests and diseases should be earlier than the prevention and control of diseases. According to the characteristics of greening and yellowing of the leaf miner, in the critical period of pest occurrence, by placing the yellow board of the armyworm in the field, it can effectively trap the pests such as the leaf miner. Reduce the number of leaf miner's mouth in the field, and prevent the spread of insects, reduce the control of drugs, increase production and increase production efficiency. The principle of the yellow scorpion is a fast, simple, green and environmentally-friendly new high-tech insecticidal product developed according to the characteristics of modern biochemistry and photophysics. According to the pest habits, the specific color is tempered, and the special color is used. It is processed from pollution-free adhesive shellac, and once the pest is stuck on the glued cardboard, it will not be able to escape. The cost of a yellow wormwood is very low. Therefore, the yellow leaf board is used to trap the leaf miner. 30-40 sheets of sticky worms can be applied per acre, and the hanging height is generally 20-30 cm above the top of the plant. Structured Packing,Structured Packing In Distillation Column,Ceramic Structured Packing,Structured Packing Column Ningbo Cijie Chemical Equipment Co., Ltd. , https://www.shengjie-tower.com