Insect killer is new way to control insect killer,i it allow the insect to return to the colony or harborage, their feces & carcass can contain sufficient residual to kill other in same nesting site, Draw a drop each 6-6 inches at night waith insect killer across the usual hiddind & feeding places, e.g, fridge rubber, AROUND dustbin, bathroom and toilet walls, near gas stove, gas pipe, gas cylinder, food shelves, almirah, crack and crevices in home & restaurants.