The fact that large moths such as gypsy moths and gypsy moths are strongly attracted to light of a specific wavelength is a joint research by Assistant Professor Hiroshi Nishino, Researcher Ai Domae, Hokkaido Branch of East Japan Expressway, and Nexco Engineering Hokkaido, Institute of Electronic Science, Hokkaido University. Do you get it.
According to Hokkaido University, the research group installed LEDs (light emitting diodes) of various specifications and wavelengths at the Usuzan service area in Hokkaido from July to September 2014 and at the Yubari interchange from July to September 7 and 9. I investigated what kind of insects to attract.
As a result, the number of insects attracted to light reached 11 orders and 65 species such as moths and beetles, but large moths such as gypsy moths and gypsy moths, which are pests in the forest, have a wavelength of around 380 nanometers near the boundary with visible light. Turned out to be attracted to.On the other hand, aquatic insects and feather ants tended to prefer warm-colored light.At the same time, it was also found that when the temperature after sunset exceeds 20 degrees Celsius, gypsy moths are likely to fly.
Gypsy moth is a pest that is harmful to many plants and collects in the light of highways, causing damage to the electronic toll collection system.There are methods of attracting pheromones and using viruses that infect specific species, but they are expensive and impractical.
For this reason, the research group was investigating the light preferred by pests in order to select by light to attract and control pests.In the future, the policy is to put into practical use a control trap that emits light of an appropriate wavelength.
