The insecticides contain {TAIL ~ Propoxur}, Pyretrines, {HEAD ~ silicates} and a combustible wax 
The insecticides contain { TAIL ~ Propoxur } , Pyretrines , { HEAD ~ silicates } and a combustible wax
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH