Most species of Hymenoptera that live in hollows and recesses do not make the excavations themselves. Instead they occupy existing holes, made by certain types of beetles, in which they construct their brood cells. Because they regulate the numbers of insect pests, Hymenoptera are of major ecological and agricultural (and also economic) importance.
Much of our countryside has been cleared and cultivated and consequently there are not enough natural nesting places. Everyone should make an effort to provide nesting aids for insects.
Siting and positioning:
There are no hard and fast rules for siting but care should be taken to select a sunny site that is protected from wind and rain. Examples of good sites include allotment sheds, pergolas, walls, gardens and even balconies up to the third or fourth floor. Nesting aids should also be left outside during the winter because otherwise the insects will emerge from their winter hiding places too early and die.
Cleaning and inspection:
Hymenoptera such as wild bees, sand wasps and common wasps.
Hardwood (native beech)
11,5 cm x 24 cm x 9 cm