Dursban 4 
A product name for an insecticide that contained the active ingredient chlorpyrifos for the control of insect grubs, including frit fly, fever fly, chafers and leatherjackets but is no longer approved for use.
Dursban 4
A product name for an insecticide that contained the active ingredient chlorpyrifos for the control of insect grubs, including frit fly, fever fly, chafers and leatherjackets but is no longer approved for use.