An insecticide is a pesticide used against insects including wasps, yellow jackets, hornets, mosquitos, ants and flies. Pesticides are used to control various pests and disease carriers, such as mosquitoes, ticks, rats and mice. Pesticides are used in agriculture to control weeds, insect infestation and diseases.

There are many different types of pesticides; each is meant to be effective against specific pests. Some examples include:

• Algaecides to kill and/or slowing the growth of algae.
  
• Antimicrobials to control germs and microbes such as bacteria and viruses.
• Disinfectants to control germs and microbes such as bacteria and viruses.
• Fungicides to control fungal problems like molds, mildew, and rust.
• Herbicides to kill or inhibit the growth of unwanted plants, also known as weeds.
• Insecticides to control insects.
• Insect Growth Regulators to disrupt the growth and reproduction of insects.
• Rodenticides to kills rodents like mice, rats, and gophers.
• Wood Preservatives to make wood resistant to insects, fungus and other pests.