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Spot that spot

Hi all,

 

 I've got a rather lovely 6ft olive tree but unfortunately I have noticed it has developed spots (as pictured) on many of its leaves. I have also noticed these appear predominantly on the side of the tree which gets the most light. 

 

 Could anyone point me in the direction of what this could be and how to battle it if it's a problem?

image

 

Thanks

BB

Posts

  • waterbuttswaterbutts Posts: 1,239

    Is it pitting rather than something on the surface? If so, could it be water droplets have acted like little magnifying lenses in the hot sun and burned holes in the leaves?

  • BugBearBugBear Posts: 4
    waterbutts wrote (see)

    Is it pitting rather than something on the surface? If so, could it be water droplets have acted like little magnifying lenses in the hot sun and burned holes in the leaves?

    It appears to be growth on the surface, it's certainly raised. Thank's for the suggestion though.

  • waterbuttswaterbutts Posts: 1,239

    Are they hard to the touch or powdery, scratchable with a fingernail or squishy and moist?

  • BugBearBugBear Posts: 4

    They are hard and dry to the touch.

  • waterbuttswaterbutts Posts: 1,239

    So when you scratch them with a nail there's nothing wet inside so it's not scale insect.

    And it doesn't sound like a fungus.

    There is a thing called scab - you could try looking that up online.

    And there's a thing called oedema, which is caused by excessively high moisture in either the air or the growing medium. The plant's cells swell and burst, leaving raised patches. The advice is to leave the leaves on and decrease the amount of watering and increase the air circulation.

    Sorry, can't help any more!

     

  • BugBearBugBear Posts: 4

    Not at all, I really do appreciate your help. Unfortunately, the images I've found online for each of those doesnt seem to match what we have here. The search continues...

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