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Brown markings on indoor succulent

shaunawalker96shaunawalker96 Posts: 8
in Problem solving
Hi, I was hoping people could help identify why my succulent has these brown/reddish marks on the the underside of its leaves. It's had them for a while now and I suspect it might be sun damage as the tips of the leaves are very red. However could it possibly be damage from pests? I discovered mealybugs on a jade plant on the same windowsill as this succulent and want to make sure this isn't from pests. I've put rubbing alcohol on the leaves last night and haven't spotted any mealybugs on the leaves. 

Posts

  • philippasmith2philippasmith2 Posts: 3,742
    The plant itself looks very healthy.  You can always expect some markings on the leaves of anything growing.  Keep an eye out for visible pest damage as per your Jade plant.
    The pink tips to the leaves look natural to the variety.
    @wild edges may be able to help further :)
  • wild edgeswild edges Posts: 10,497
    edited June 2022
    No idea sorry. It happens quite often with succulents for any number of reasons. Could be physical damage, pest damage, a touch of watering at the wrong time or weather damage. It's a bit isolated for sun scorch and fairly randomly placed for pests. I'd be inclined to say it was slightly over-watered at some point and suffered a couple of burst cells (oedema). When I say over-watered I mean that the plant didn't need water and couldn't respire properly so the water overloads the cells and causes ruptures. This can happen when the plant has been dry for ages but isn't growing or is dormant because of the time of year.
    Also be careful with rubbing alcohol on plants as some can't take it. I sprayed down a sedum with the stuff to get rid of mealy bugs and defoliated the whole plant. :#It grew back fine but there were probably less drastic ways I could have dealt with the bugs.
    If you can keep your head, while those around you are losing theirs, you may not have grasped the seriousness of the situation.
  • Arthur1Arthur1 Posts: 542
    I use a fine paint brush dipped in meths to control mealy bug. Time consuming but effective.
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