It is most conveniently prepared in {TAIL ~ aqueous form} immediately prior to use, for example, as a spray for insect infested {HEAD ~ crops} 
It is most conveniently prepared in { TAIL ~ aqueous form } immediately prior to use , for example , as a spray for insect infested { HEAD ~ crops }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD