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December 10, 2016
14 years ago we planted Leyland cypress across our back lawn. They grew like wildfire
to at least 30 feet tall, but Entergy has made several destructive cuts on them and
now they need to be replaced. So we are working with Bemis Tree about replacing them.
We are in a dilemma. We have planted a Mary Nell Holly in the corner where we had
had a 40ft Spruce until Entergy destroyed it, and we love the dark green of the holly.
Now we are trying to decide as to whether or not to replace the Leyland with the holly
or Emerald Green Arborvitae. Do you have any suggestions?
If there is room to have a variety I always think diversity is a good thing. I like
both the Mary Nell and Nelly Stevens hollies along with Luster leaf and others. The
arborvitae is a different texture and would complement the hollies and Little Gem
magnolias or one of the other small-leafed varieties would also be good. Many folks
planted rows of Leyland cypress that they are now replacing due to a stem canker disease.
October 10, 2015
I wonder if you could help me figure out what is going on with my Leyland Cypress
trees. There are a lot of brown branches throughout them. The damage seems to be random.
They are about 10 years old and prior to this they have always been healthy.
Leyland cypress trees are affected by several canker diseases. It typically starts
appearing around 7-9 years of age, but you begin to see dying limbs scattered throughout
the tree. Pruning them out as soon as you see them can help, but there really isn’t
any spray program that will help. If you look closely on the stem beneath where you
see browning the cankers will appear as sunken, dark brown or purplish patches on
the bark, sometimes accompanied by resin (sap) flow. This is fairly common on these
plants which is one of the reasons I don’t recommend using them anymore. That doesn’t
help you I know, so hopefully you can prune out and the damage will slow down.
I have several beautiful Leyland cypress trees in my front yard that have done well
for years, but this year I noticed one of them has a problem in the top. Something
is causing it to look like it is dying. I was wondering if you could tell me what
it is and if anything can be done before it is too late.
Did you water it the past two summers? We are going to have a lot of damaged plants—trees
in particular after the past two horribly, hot and dry summers. Die-back from the
tips, could be indicative of drought damage. If you are losing sporadic branches,
this could be twig canker, a common disease they suffer from, but it usually doesn't
attack just the top of the tree. If you can, take a sample of the plant and some photos
to your local county extension office for diagnosis
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