A biocide is a chemical substance capable of killing different forms of living organisms used in fields such as medicine, agriculture, forestry, and mosquito control.A biocide can be: A pesticide, which includes fungicides, herbicides, insecticides, algicides, molluscicides, miticides and rodenticides. An antimicrobial, which includes germicides, antibiotics, antibacterials, antivirals, antifungals, antiprotozoal and antiparasites. See also spermicide. Uses Bi