The ecological trap AL. FE allows the control and monitoring of the Asian marbled stink bug Halyomorpha halys capable of causing serious damage to fruit, ornamental and vegetable plants. With the use of specific attractants and pheromones AL. EF that can be purchased separately, it is able to effectively attract individuals of both sexes, both in the juvenile and adult stages. The trap is ecologically sustainable, it does not affect flowers, fruits, soil and groundwater. The product is non-toxic, does not contain insecticides and is safe for animals and the environment. Assembly instructions: 1) Take the transparent cone and close it with the joint on the side of the same; Turn the tip upwards and insert the 2 light green units above and below. 2) Place the plastic cylinder containing the combination of attractant and AL pheromone freely on the transparent cone. FE for Halyomorpha Halys. 3) Insert the cone into the collection container cylinder and screw until it is secured. 4) Take the 3 green flaps and insert them one by one inside the holes on the base of the trap, then join them together. 5) Place the trap by placing it on the ground or hanging it near the most sensitive areas, in particular near hedges and in the perimeter areas of orchards. You can reuse the trap several times by replacing only the pheromone and attractant after about 12 weeks