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Old 09-18-2012, 02:56 AM
carbpow carbpow is offline
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Dead Grass and Palms

I have a strange thing going on with sod that was put in a few months ago. Under some areca palms right where the water drips off them after a rain and also under a sea grapes where the water drips I have dead grass. It is empire zoysia if that makes any difference. It is as if there is something toxic in the leaves of the palms and sea grapes. Any ideas?
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Old 09-18-2012, 07:59 AM
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Got pics?
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Old 09-18-2012, 09:10 AM
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Has the property in question been preasure washed recently or their neighbors property.
Post pictures.
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Old 09-18-2012, 03:55 PM
carbpow carbpow is offline
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Photos

I have NO idea how these photos will come out as I have not done this before on this website but hopefully you'll be able to see where the grass is brown under the dip line of the palms.
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Old 09-18-2012, 06:51 PM
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mole cricket /grubs?
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Old 09-18-2012, 08:04 PM
carbpow carbpow is offline
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I poured a soap solution on and didn't see any critters surface. I had mole crickets right after I put it down. They were terrible as I could still lift the sod in places after 4 weeks, but I took care of them with carbaryl. The sod still hasn't rooted well where they were but this thing under the palms is strange. It started as round spots where the water dripped off the tips of the leaves and has slowly spread.
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Old 09-19-2012, 06:56 AM
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Round spots usually indicate Fungus.

Check for root rot (pythium) along the tree line.
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Old 09-23-2012, 07:51 PM
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Quote:
Originally Posted by jvanvliet View Post
Round spots usually indicate Fungus.

Check for root rot (pythium) along the tree line.
I stick with my prognosis until he actually checks to roots for rot.

Round spots from Chlorine damage? Pots with herbicide in them? Maybe, but not likely.
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Old 09-23-2012, 09:43 PM
carbpow carbpow is offline
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Quote:
Originally Posted by jvanvliet View Post
I stick with my prognosis until he actually checks to roots for rot.

Round spots from Chlorine damage? Pots with herbicide in them? Maybe, but not likely.
Since my original post I have had a couple of guys check this problem out one of whom is a retired horticulturist. The general consensus is: root rot and a fungus from excess moisture during the period following the placing of the sod. There was no herbicide in any of the pots, ever. The pool chlorine idea they all agreed is possible but as it is a salt water pool and the chlorine maintained on the low end he didn't think it was likely, though possible. Though the photos don't show it the palms had fronds much lower to the ground right after the sod was laid and the irrigation system hit them and dripped onto the ground three times a day causing too much spot moisture. The roots rotted and a fungus developed that spread. They all noted that the sod would likely recover as new growth is being seen.
As an aside I can add that this empire zoysia is some seriously hearty stuff. I had about 20 pieces left over and threw them on some dirt I had mounded up for a later shrub bed simply because I wasn't going to send it back. No irrigation was provided but every piece survived and I will use that to fill in where needed. I've been using nothing but a commercial Palm fertilizer with 8%N on the lawn and though it's not the greenest in the world the roots seem to be strong.
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Old 09-24-2012, 07:07 AM
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Quote:
Originally Posted by jvanvliet View Post
Round spots usually indicate Fungus.

Check for root rot (pythium) along the tree line.
Quote:
Originally Posted by jvanvliet View Post
I stick with my prognosis until he actually checks the roots for rot.

Round spots from Chlorine damage? Pots with herbicide in them? Maybe, but not likely.
Quote:
Originally Posted by carbpow View Post
Since my original post I have had a couple of guys check this problem out one of whom is a retired horticulturist. The general consensus is: root rot and a fungus from excess moisture during the period following the placing of the sod. There was no herbicide in any of the pots, ever. The pool chlorine idea they all agreed is possible but as it is a salt water pool and the chlorine maintained on the low end he didn't think it was likely, though possible.
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