Insects pollinate flowers and regulate pests – it’s part of a natural cycle. Creating a habitat for a diversity of plants and animals supports this cycle (let nature do the work, she is more experienced with keeping a balance).
If you have trouble with aphids – commonly known as vine louse – you don’t really have an aphid problem, you have an earwig and Co. problem. Or rather a deficiency. By creating a habitat for these insects you can support biological pest control.
A really simple version of an insect hotel is build with a ceramic pot filled with straw and covered with a potato or onion net.
Hang it up on a tree or you balcony and talk about it!