PROBLEM TO BE SOLVED: To prevent invasion of a pest that causes a pest that may damage agricultural crops to prevent the pest from approaching a field, etc. Provide a structure. SOLUTION: A repellent structure 10 for preventing invasion of a harmful animal by assembling four equilateral triangular net frame bodies 1 in which a steel material is formed in a grid-like mesh and connecting them at their respective sides to form an equilateral triangular pyramid. Formed. The mesh frame body was formed into an equilateral triangle having three sides framed by core rods, and steel materials connected to the core rods on these three sides were arranged in a grid and integrally formed by welding or the like. The size of the grid-like mesh forming the mesh frame body was set to such a degree that the pest of the opponent pest easily entered and was entangled with the limb when it was pulled out. [Selection diagram] Figure 1【課題】農作物に被害を与える恐れがある害獣に対し田畑などに近づけさせないための構造体であり、害獣に構造体の怖さを学習させ、近づくことを忌避させる害獣の侵入を防ぐ構造体を提供する。【解決手段】鋼材を格子状の網目に形成した正三角形の網枠体１を４枚、夫々の辺で繋ぎ合わせて正三角形の三角錐に組み立てて害獣の侵入を防ぐ忌避構造体１０を形成した。網枠体は三辺を芯棒により枠取りした正三角形状とし、これら三辺の芯棒に接続する鋼材を格子状に配して溶接などで一体に形成した。また、網枠体を構成する格子状の網目の大きさは、相手とする害獣の肢が容易に入り、抜くときに肢に絡む程度とした。【選択図】図１
