Abstract: A system for performing several functions in caring for crops such as vines grown in rows uses a high pressure water jet to selectively prune, thin shoots and remove leaves from growing crops. Water jet size, pressure, movement and position relative to the crops are controlled to obtain desired functions.

Abstract: A method of controlling the growth of moss includes applying to the moss an aqueous solution including silver nitrate at a rate of about one fluid ounce per six square inches of moss.

Abstract: An electrically driven router is mounted in a top portion of an elongated rod. An electrical cord is juxtaposed along the length of the rod and is electrically connected to the router at a top portion of the rod and at a lower portion of the rod to a source of electrical power in the form of a battery pack or 110 volt service. The router mounts a fluted cutting bit having a length preferably of at least three inches, the bit adapted to laterally cut through a longitudinal axis of small diameter vegetation.