The litchi fruit borer (Conopomorpha sinensis) is the major pest in the litchi industry. By turning on LED lights of a specific wavelength at night, the oviposition rate of the litchi fruit borer can be suppressed to less than 2%, reducing the use of pesticides during the fruit development stages by 20-75%. This not only saves costs of manual pesticide application but also enhances consumer food safety. This technology has already been implemented in litchi-producing regions such as Pingtung, Kaohsiung, Taichung, and Hsinchu.