Pistal Clothes Moth Insecticide Spray is a powerful insect killer made of natural ingredients, the principal one being pyrethrum, which is an extract of chrysanthemums. It is this extract that the synthetic permethrin mimics, the difference being that the synthetic version stays toxic for an extended period and the Pistal professional insecticide neutralises after 2 - 3 days. You might think that when it comes to destroying moths remaining toxic for a long time is beneficial, but this kills all insects, including beneficial ones, and if it gets into the water system it kills fish and other aquatic life. So Pistal professional insecticide does what it says on the can: it kills the insects you want to destroy (clothes moths) and that's it. Other wildlife isn't harmed by the product, so long as it is used correctly.
When it comes to pest control there are two options available: DETER and DESTROY. Pistal definitely comes into the DESTROY aspect of insect pest control in the home.