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Splitting bark on lime tree

    9 responses

AmberKristen starts with ...
Hi, I have a beloved lime tree (about 8yrs old) that has suddenly started splitting its bark. The trunk first had one split in it, and now more have developed further up the trunk and on some of the lower limbs. There appears to be some white scale on the trunk. I cannot find any evidence of borer's (dust, holes, sap etc). There is no sap oozing from any areas, its just like the trunk got too big for the bark and its split. SOme splits are more than 30cm in length. PLease help if anyone has any suggestions. The tree is still prolifically fruiting but there is some yellow mottling to the leaves so I am suspecting it needs some iron definency too which I will rectify.
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AmberKristen
Glass House Mountains
16th February 2015 7:09pm
#UserID: 11305
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Boris Spasky says...
citrus snow scale (Unaspis citri).
They appear innocuous, until as you have found, bark splitting occurs.
If not treated your tree will die a slow death.
Use an anti scale or malathion based product painted on the trunk and major branches.
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Boris Spasky

16th February 2015 8:49pm
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AmberKristen says...
Thank you for the advice. Yes I have been watching it slowly split in more and more places. I have had mixed advice and some have said borers but it just didnt look like the damage that borers do and I suspect the scale did have something to do with it. Do you have any suggestion on how to prevent infection of my neighbouring citrus? For this infected lime tree I was going to mix some malathion into a prunning paint and paint that on - is this advisable?
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AmberKristen
Glass House Mountains
19th February 2015 10:24pm
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MikeThorn says...
My lime tree also suffered split trunk and splits on major boughs. I also noticed branches dying off that had been pruned the year before. I have trimmed off all the dead branches and have a single branch left with leaves and fruit. I have yet to treat the tree. I will treat the fresh cuts with pruning paint and Malathion and treat the trunk as well. I have a Meyers Lemon and Cara Cara orange in close proximity that do not have trunk splitting.
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MikeT
Northridge
28th July 2015 8:06am
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People who Like this Question Gail9
jakfruit etiquette says...
Malathion is an insecticide, it affects the transmission of nerve signals, in insects and animals. Not sure it would be known to be effective against plant wounds.
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jakfruit etiquette
vic
28th July 2015 9:25am
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Overlander says...
Did you ever fix this problem? I have just discovered my tree looks exactly the same.
Thanks Andy
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Overlander
Qld
26th December 2017 11:23am
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People who Like this Question Gail9
Gail9 says...
I'm very interested in this forum as the bark my lime is splitting too.
I thought that it may be citrus snow scale. So I sprayed with white oil and then at another time with wettable sulphur. The sulphur seemed to have the best result. However the bark has split again and a few scale (white spots on limbs) are becoming obvious again.
Please if you have had success could you please share the remedy as I really don't want to lose my amazing lime tree.
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Gail9
TOLGA,4882,QLD
12th August 2018 2:30pm
#UserID: 18816
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MikeT says...
Never resolved and replaced the tree. In addition to the splitting bark, I had severe branch die back from pruning cuts. My other citrus: Meyers Lemon, CaraCara and Wash. Navel Orange have not been affected.
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MikeT
Northridge,CA
13th August 2018 8:01am
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Gail9 says...
Thank you for your response MikeT
AmberKristen did you have any luck?
My lime looks to have the symptoms as yours in your photos.
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Gail9
TOLGA,4882,QLD
14th August 2018 1:47pm
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Debann says...
Hi, My beautiful line in Australia has the same problem. I was advised by nursery that my problem is due to stress from our current drought. She is still flowering and still splitting. I was advised to paint the wounds with a sealant.
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Debann
Gatton
5th October 2018 3:02pm
#UserID: 19096
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