Ladybirds (or ladybugs) love pests and will delight in feasting on spider mites, mealy bugs and whitefly, and so are a wonderful addition to every productive garden.
Make sure you encourage the ‘good’ ladybirds, which are usually either bright orange with black dots and are carnivorous (including the common ladybirds) or bold black and yellow (the fungus-eating ladybirds). The ‘bad’ ladybirds are the 28-spotted or leaf-eating ladybirds. They are a lighter orange in colour and can be identified by the 28 black spots on their wings.
The following directions are for a cardboard house, but if you have more time, you can adapt these instructions to make one from wood.