Ok...a few weeks ago I posted about recently having a landscaper plant
some Leyland Cypress trees in our backyard. Now about 3 weeks
later...I think they're dying but am not sure. I live in NJ in case
that matters...the 12' Leylands were planted in our backyard...5 of
them about 10' apart in a half sun/half shaded area. Since then, 4 of
the trees are turning light green/almost yellow from the bottom of the
tree working it's way up. Some spots have turned brown and have
fallen off the tree. Is this over watering? Under watering? Shock?
Other explanation?

Now one other thing to note...when the trees were planted, I was told
that the burlap around the root ball was to stay tied and I was to cut
them open in about a year. Is this normal?? Everything I've read
says to loosen the burlap upon planting. But even if it's not normal,
could this cause the tree to start dying so soon after only 3 weeks in
the ground?

Any and all advice would be greatly appreciated...really don't want to
lose these trees if it's not too late. Thanks in advance.