Modifictions of the instant invention include the second shield provided with a further leg oriented orthogonally relative to the shield to be directed interiorly of an underlying ground surface preventing undesirable instrusion of {HEAD ~ vegetation} underlying {TAIL ~ the shield area} 
underlying
Modifictions of the instant invention include the second shield provided with a further leg oriented orthogonally relative to the shield to be directed interiorly of an underlying ground surface preventing undesirable instrusion of { HEAD ~ vegetation } underlying { TAIL ~ the shield area }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL