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  • 1 Post By Kauaiguy
  • 4 Post By ksriramkumar
  • 3 Post By Kauaiguy
  • 2 Post By oile
  • 1 Post By raybark

what have I done to cause browning of basal sections of leaves

This is a discussion on what have I done to cause browning of basal sections of leaves within the New Growers: Ask the Senior Members forums, part of the New Growers category; based on the attached photos, what might have caused the basal sections of the leaves ...

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  1. #1
    christopher law is offline Junior Member
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    Default what have I done to cause browning of basal sections of leaves

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    based on the attached photos, what might have caused the basal sections of the leaves to rot?? I water every 2 weeks, 1 watering with food, the other without. I was spraying the enclosure they are in daily (first removing the orchids and then placing them back) and this moisture usually evaporates off between 6-12 hours

    Any advice is appreciated,

    Many Thanks

  2. #2
    Kauaiguy's Avatar
    Kauaiguy is offline Senior Member
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    Not a good sign. Please take it out of the medium and inspect the root ball area, hopefully it's not all rotted out.
    Kind of a dark picture, but I don't see any drainage in the plastic pot. Maybe at the bottom?

    It's not the evaporation at the top you should worry about. It's what's happening at the bottom!

    I suspect root rot. Please post a pix after taking the plant out of the pot.

  3. #3
    christopher law is offline Junior Member
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    there are holes in the bottom of the pot...roots are not looking the best (from what I can see)

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    I have been raising this orchid for about 7 months now with the same routine (also on 2 other orchids that are not showing any ill signs).... if this is a case of root rot is the plant salvagable from this point on ... what are some tips to possibly get a positive outcome

  4. #4
    ksriramkumar is offline Senior Member
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    Looks like a goner. May it was potted deep, crown of a paph should always be above the media. You could unpot it and spray it with Hydrogen peroxide and try see if it can recover. If there is an active root system then there is a chance that it can grow a new shoot

  5. #5
    Kauaiguy's Avatar
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    Just as Ksriramkumar said, it's probably a gonner and beyond saving. You can try the Hydrogen Peroxide but the odds are not very good.

    Root Rot is generally the cause of overwatering, lack of oxygen and the media below breaking down into a mushy mess causing Anearobic bacteria to grow.

    I am not fond of plastic pots especially the ones without side holes, because once you sit it down on a flat surface (unless it's on top of rocks), you basically cut off the air flow. And if there is any moisture left down below and without the air flow, it has no way to completely dry out. So the top dries out, but the bottom is still soggy, and you water some more thinking that it needs it.

  6. #6
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    oile is offline Senior Member
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    I think this is root rot, the causes can be many, all linked to stagnant humidity: watering too often and before the bark or other is dry, poor ventilation, inadequate drainage out, personally I always add the holes in the pots, with a hot iron open more holes.
    From photography seems to me that not all the root system is compromised, personally procedei eliminate all roots compromised and immergerei in a Previcur Energy solution, [Propamocarb 47.2% (= 530 g / L) Fosetil 27.6% (= 310 g / L)], manufactured by Bayer, 3ml / L, repot and dagnare x three to four weeks with a 1.5-2 ml / L solution, suspend and after a month repeat a three-week cycle of 1ml / L.
    It is a systemic fungicide active product against pathogens of the order of Oomycetes, in particular of those belonging to the genus: Pythium and Bremia.
    It should be used with caution, wear gloves and goggles Single use, in the Bayer site you will find right directions, in Italy Classification DPD, Toxicology: Xi | Environment: - Classification and CLP

  7. #7
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    I agree with Sriram's speculation of it being potted too deeply, possibly compounded by water getting in the crown.

  8. #8
    Kauaiguy's Avatar
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    The crown on this looks pretty bad and like I said, the odds of saving this is pretty low. However, I would advise that you check the other orchids as well because, If you're doing the same thing to them ... they could be headed in the same direction.

    As long as the orchid is NOT flowering, it won't hurt to check out the condition of the root system. And if possible repot in a net pot or at least a clear see through pot (with holes on the sides) so that you can keep an eye on the root structure.

    And yes, as Siram (and others) have said, Phals need to have their crown ABOVE the potting medium for air circulation as well as avoiding the dense concentration of moisture at the crown.

  9. #9
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    A lot of good advise so far and I would only say I agree with them all!

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