These herbicidal compositions have {HEAD ~ an excellent rapid action} and exert a remarkable herbicidal effect in {TAIL ~ a small dose} 
These herbicidal compositions have { HEAD ~ an excellent rapid action } and exert a remarkable herbicidal effect in { TAIL ~ a small dose }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL