Dangers if the depth is too shallow
Wild bees seal the holes their nesting site after they have laid their eggs in it. Doesn't it matter how deep you drill the holes? Not at all, because peck every now and then Birds open the nest locks with their beaks and try to get to the larvae. If the narrow tubes are then deep enough, they have no chance.
On the other hand, you must never drill all the way through the holes for this reason. Without one Back wall the larvae are exposed to nest predators from both sides.
also read
- Drilling holes for the insect hotel - instructions and tips
- The most common mistakes when building an insect hotel
- The right hole size for your insect hotel
Build insect hotel yourself
Although the models available on the market make a professional impression, most insect hotels are unfortunately not suitable for keeping them appropriately. The focus here is on the visual advantages. That is why it is better to have your own Insect hotel(€ 11.33 at Amazon *) to build. These tips will make your shelter much more effective than a bought one.
The right material
When building your insect hotel, only choose hardwood from deciduous trees such as
- Apple trees
- Plum trees
- Ash trees
- or book
This will prevent cracks from forming while drying, which could injure the insects.
The right dimensions
- Width of the drill holes: 3-5 mm
- Depth of the drill holes: 5-10 cm
- The holes should run at a slight angle.
- Don't forget that sawdust to remove from the aisles.
- - relevance of the drilling direction
Drill Never in the longitudinal wood, but always opposite to the grain. As mentioned earlier, you are not allowed to drill tunnels. If you still want an entry lane on both sides, simply drill corridors in both sides of the wood that end at a rear wall.