Earwigs can be killed by trapping them in skewed up newspaper stuffed into flower pots placed upside down on the ground at night and shaking them out into soapy water in the morning. Hand removal of pests and diseased parts of plants is another time tested remedy. Most caterpillars can be killed by spraying them with a suspension containing a bacterium called Bacillus thuringiensis, available in several commercial formulations. You can also use a blender to make your own botanical pesticides from different types of plants. This is one of the many ways you can experiment and design your own unique methods of control, but be careful to avoid using toxic materials.
Natural materials can be just as toxic as synthetics.
To control carpenter ants, earwigs, and stored food pests, use diatomaceous earth. D.E. is a non-toxic powder that scratches the wax off the insects body causing it to dry up and die. This is particularly useful within a house or other enclosed space. Place it in corners, on window ledges and in dead spaces such as between walls and in the roof. In late summer or fall remove the remains of annual plants so that they do not provide overwintering sites for pests.