David from Kissimeee, Fl writes
I am using a ULV machine.
Riptide 5.0% Pyrethrin ULV will only kill those roaches that are out in the open at the time you are fogging. How long it takes to kill can depend on how much contact you make with the roaches and age and health of the roaches. it can take a few minutes up to a few hours.
Answer last updated on: 12/12/2019