... products,including lawn movers,hedge trimmers,chain saws,brush cutters,earth augers,sprayers,blowers,cultivaters,water pumps,leaf vacuums,high pressure ... produce mould, lawn yellow.Then must promptly improve soil.B: drilling machine can be evenly lawn on the lawn hit about ... also cut off the drilling in part of the grass roots, and promote the new roots. self-propelled earth auger punch machine garden ...