Wiktionary
dicofol
n. (context organic compound English) An organochlorine pesticide and miticide, chemically related to DDT and especially effective against the red spider mite.
Wikipedia
Dicofol
Dicofol is an organochlorine pesticide that is chemically related to DDT. Dicofol is a miticide that is very effective against red spider mite.
One of the intermediates used in its production is DDT. This has caused criticism by many environmentalists; however, the World Health Organization classifies dicofol as a Level II, "moderately hazardous" pesticide. It is known to be harmful to aquatic animals, and can cause eggshell thinning in various species of birds.