It is important to use the Crovect applicator and the correct nozzle for the ectoparasite you are treating. Always calibrate before use. The applicator includes:
(1) fan spray nozzle for blowfly prevention
(2) t-bar nozzle for treatment of blowfly strike and for treating headflies
(3) pin-strip (straight) nozzle for lice and ticks – part the fleece and apply to the skin