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Leylandi turning brown
Posted: Sun Jan 24, 2010 11:48 pm
by Northern Lass
Has anyone had any problems with their Leylandi or fir trees turning brown?
Someone said it was an insect we have lost a beautiful tree and noticed today over the
road 2 are brown
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 12:12 am
by mallosa
Probably the frost could have something to do with it?
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 5:41 pm
by Annie
My daughter had two go brown in the summer , but don't know what caused that.
Annie
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 5:53 pm
by Northern Lass
Sure someone said it was an aphid or some sort of insect...
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 6:02 pm
by Rob
I have Leylandi all round my house and a couple of them went brown a couple of years back.
Several explanations depending upon the age and situation of your trees could be the cause.
If newly planted drying out and wind scorch are most likely causes. Nearly always best to plant out small trees, they'll get established and even overtake bigger specimens that you might be tempted to put in.
Protect newly planted ones with a wind break, also water in well, insert a piece of pipe into the planting hole so that when you water them the water goes down into the roots where it's needed. Also uncurl any roots that are going round and round the base of the pots, it'll help to ensure more stability as the trees mature. Conifers are relatively shallow rooted. If they are old, again wind scorch and old age. They do tend to die off at the base growth.
Could just possibly be pest damage or has a dog taken to marking its territory!!
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 6:08 pm
by Annie
Rob that's a good tip for watering , next time we plant a tree I'll add some pipe.
Annie
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 6:09 pm
by Northern Lass
Could be bot canker
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 6:34 pm
by Annie
Can you buy anything to prevent Northern Lass.
Annie
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 6:43 pm
by Northern Lass
Annie wrote:Can you buy anything to prevent Northern Lass.
Annie
nah nothing gets rid of me Annie
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 7:03 pm
by Annie
Northern Lass wrote:Annie wrote:Can you buy anything to prevent Northern Lass.
Annie
nah nothing gets rid of me Annie
Oh dear sorry put that wrong , Laylandi not you Northern Lass
Annie
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 7:12 pm
by peterd
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 10:09 pm
by Jimmy
Annie wrote:Can you buy anything to prevent Northern Lass.
Annie
No nothing can prevent NL. 
Re: Leylandi turning brown
Posted: Mon Jan 25, 2010 10:10 pm
by Rob
Wow!! Bot Kanker!!
Control measures are similar to those described for Seridium canker. Prune out diseased branches below the dead wood. To minimize stress, follow proper establishment procedures, space out plants, mulch with pine bark or pine straw, and irrigate during lengthy periods of hot and dry weather. Avoid heavy fertiliztion, particularly in late winter and the fall. Fungicides have been shown to be ineffective against bot canker.
This is bad.Real bad!!
Re: Leylandi turning brown
Posted: Tue Jan 26, 2010 11:32 pm
by Northern Lass
Oh well I suppose it's too late now tree has gone!
I love to see the old trees we have one over 300 yrs old a lime tree
I will get a photo of it in the village
Re: Leylandi turning brown
Posted: Thu Jan 28, 2010 1:21 pm
by Jackienock
There is quite a lot on Google regarding the conifer aphid. It seems this has been responsible recently for Leylandii turning brown. However one writer reckons that milder ????? winters have caused the aphid to survive and spread.
Think it may not spread quite as quickly after this winter.
Not a lot you can do. Cut it down!
Jackienock