Asked in Garden Pests
Garden Pests

What do pesticides have that kills pests?


Wiki User

Most pesticides contain some form of chemical or organic compound in them that is toxic or detrimental to insects; sometimes there are a combination of compounds. This is referred to as the "active ingredient" of the pesticide.

They are able to kill insects in a number of ways depending on the insect and the formulation.

Some ways that pesticides work inlcude:

  • Stomach poison (via ingestion)
  • Fumigants (via inhalation)
  • Neuro-toxins (via ingestion or inhalation)
  • Metabolic disruption (via ingestion or inhalation) - here the product works by preventing some part of the natural life-cycle of the insect - e.g. preventing it from pupating, this is a slower action than other pesticides.