Re: Air-spade Today air-spade work to a big oak in the center of Milano,
we dig 2 meter around the tree only cause the tree is now confined in a round and upper spot, 5 yr ago they dig for car parking underground and remove all the roots they could find, yr after yr the oak has dried the tops.
Pakisandra was under the tree and it turned yellow too. We remove pakisandra and exposed the roots.
Found some broken roots underground, a couple was very huge but cut in a bad way (looks like excavator's bite) 1 mt or little more from the tree.
there was evident sign of rottten roots. Was difficult to dig with the spade here cause of many pakisandra roots evrywhere, the air was not passing under so we decide to remove manually the white pakisandra roots, trying to not damage the tree root system.
After a bit more decompacting the soil. we pour on the exposed roots a solution of healthy fungy mix with water, and filled evrything with lavic gravel with few activeted ground.
Hope is gonna help for the tree, Iìll wait to sse him very green and healthy this summer! |