Orchards are not the only places inhabited by wasp and hornet populations. These flying pests make nests in unexpected places: on attic beams as well as on trees, preferring hidden cavities and quiet places, where their colonies can grow undisturbed.
It is very important to eliminate the queens of these populations, and this can be done precisely through those same bio-traps as those employed in orchards.
Do you already know what the problem is?
Click on the cause of the damage to find the cure