Disclosed are an automated pest trapper in a grain storage using wireless control technology and a method of use. The trapper comprises a main body, wherein the main body comprises a trapping chamber (1), a trapping lamp (4) is installed at an upper part in the trapping chamber (1), a lower part in the trapping chamber (1) is open, a fan (5) is installed on the opening, and a pest receiving bag (7) is connected at the lower part of the trapping chamber (1); and the trapper further comprises a luring bottom tray (2), wherein a lifting mechanism is provided on the luring bottom tray (2), the trapper main body is connected to the lifting mechanism, the trapping light (4) comprises several annular light tubes (8) of different light spectra and a light-guide sphere (9) provided in the middle of the annular light tubes, and several LED lamps of different colours are provided in the light-guide sphere (9). The apparatus has a rational structure, the height of the trapper main body can be flexibly adjusted, and pest-removal effects are good.
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