Tortosa Area Forum
Help or Advice >> Fruit, Nuts and vegetables >> Xylella watch
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Message started by JamJarChris on Jul 27th, 2017 at 4:47pm

Title: Re: Xylella watch
Post by Bigyin on Sep 22nd, 2017 at 10:49am
"I have seen plenty of trees in the local area showing these signs."
I wouldn't jump to any conclusions.  The symptoms shown on the leaves in your photo's could just as likely be caused by Verticilliam Wilt which which is quite common and not necessarily fatal if treated.  I've had this in the orchard I planted in 2008.  It's a soil born fungal disease which blocks the xylem which carries water and nutrients up from the roots to the rest of the plant (not just in olives).  If you cut through a branch just below the affected area, you'll usually see brown staining.

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