Yucca needs 2,4-D or Garlon ester mixed in diesel and sprayed into the crowns. Let them regrow till they have a crown and hit it. I hate it when people just cut or dig weeds/plants/trees that have the capability to regrow from remaining stumps-roots.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738