The creation consists of a light-transmissive body, a hood and a permeable ring frame. The aforementioned body has an inner surface surrounding the longitudinal axis and an outer surface opposite the inner surface, such that the inner surface defines a control zone. The hood is fixed along the top end of the body and is outside the protruding body of the eaves. The hood further defines a cloister with the opening facing downward and controls the porch to have sufficient shading depth. The ring frame is suspended from the cloister, so that a ring-blocking zone is maintained between the ring frame, the cloister and the outside of the carcass, thereby allowing the ant to enter the corridor along the outside of the carcass, so that the cloister and the light-transmissive carcass Forming a first optical difference configuration, and forming a second optical difference configuration between the corridor and the permeable ring frame, so as to double confuse the ant phototaxis and blur vision, so that the ants get lost in the blocking area, so as to eliminate the ant intrusion prevention area. The technician.本創作係以可透光胴體、遮光罩及可透光環框組成。前述胴體具有環繞縱軸之內面，以及相背內面之外面，令前述內面界定出一防治區。遮光罩係沿著胴體頂端固定，且呈屋簷狀的突出胴體外面，此遮光罩更界定出一開口朝下之迴廊，並控制該迴廊具有足夠之遮光縱深。環框則是呈懸空的接設於迴廊，令環框、迴廊與胴體外面三者之間保持一阻隔區，藉此，使螞蟻沿著胴體外面而進入迴廊時，令迴廊與可透光胴體間形成第一道光差配置，以及使迴廊與可透光環框間形成第二道光差配置，用以雙重迷惑螞蟻趨光性及模糊視覺，使螞蟻在阻隔區迷路，以達杜絕螞蟻侵入防治區之技術者。
