Larger crop stands may be effectively treated by aerial spraying from {TAIL ~ the usual crop} dusting {HEAD ~ airplane} 
Larger crop stands may be effectively treated by aerial spraying from { TAIL ~ the usual crop } dusting { HEAD ~ airplane }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD