According to the Seongdong-gu Office on the 12th, a large number of oriental mayflies have recently been appearing in Seongsu-dong, close to the Han River.
Oriental mayfly, a large mayfly, usually hatches and starts activity around May or June. It lives in rivers of class 2 or higher, and is mainly seen in Gangdong, Gwangjin, Songpa, Seongdong in Seoul and Yangpyeong, Namyangju, and Hanam in Gyeonggi Province, which are bordering the Han River.
The body length of an adult mayfly is 2 to 3 cm, and when the wings are spread, the length reaches 4 to 5 cm. Its mouth has degenerated, so it cannot bite people and does not transmit disease. However, they have a habit of moving in groups toward bright lights, which can damage the business of shopping malls at night. They usually die naturally within 4 to 5 days, but it is also a problem that the bodies pile up on the floor.
The Seongdong-gu Office said, “The Han River basin, which is the habitat of the larvae, is a water source protection area, so it is difficult to disinfect and disinfect by spraying pesticides.” In addition, we are operating a quarantine task force to strengthen quarantine and disinfection of the grass and promptly handle civil complaints.”
On the other hand, ways to cope with oriental ephemera include ▲minimizing the brightness of lights after 8:00 pm ▲using yellow-based lighting or sodium lighting. Install an insect screen to prevent mayflies from entering the room, and spray water with a sprayer when they are attached to windows or glass to easily drop them.
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