A unique 40% organophosphate ear tag which releases a patented, synergized formulation of 30% Diazinon and 10% Chlorpyrifos. Controls horn flies and aids in control of face flies for 3 to 4 months at one tag per head and up to 5 months with two tags per head. Controls biting and sucking lice with one tag per head. Controls Gulf Coast and spinose ear ticks up to 5 months and aids in control of stable flies and house flies with two tags per head. Approved for use on beef and non-lactating dairy cattle. Weighs 15 gm and has long-lasting activity. Ideal for rotation with PYTHON to help manage horn fly resistance to insecticides.