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  #11  
Old 08-15-2018, 05:02 PM
Griffon Girl Griffon Girl is offline
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root rot on vase culture vanda
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The last orchid definately looks like rot to me but it could just be the picture clarity. You can check by gently squeezing the root and if it feels slimy or soft then you have rot.
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  #12  
Old 08-16-2018, 01:58 AM
Oranagra Oranagra is offline
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Actually, these root tips don't feel mushy. i know all too well how rot on Phalanopsis roots feels like: when you press on them a lot of juices go out and they end up being completely flat.
But here, even when wet, they feel somewhat firm, and when dry they feel completely firm. so maybe they're just drying/dying off..
But why? my other two vandas kept in the same condition don't have this...
What worries me is that it seems to spread slowly.
I'll grub a better camera and post closeups.

Regarding temperature and air conditioning, i measured it yesterday:
During the day, when no one is at home, the temps reach 32c (90f), some orchids (mainly Cattleyas and Den.Phals) are in direct sun from 2pm to 4pm, i measured the leafs (with IR thermometer) and they seem to get to 40c (105f)
in the evening (and weekends) when the A/C is on, the temps are as low as 24c-26c (75f-80f), And the air is also a lot dryer.

Outdoors (were i don't currently have orchids), i have from 20c (70f) at night, to 35c (95f) mid day (in shade).
I've put one Cattelya outdoors yesterday (next to the same south window where they are indoors) an it had direct sunlight from 2pm - 4pm, leaf temperatures were topping 44c (110f).
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  #13  
Old 08-17-2018, 06:45 AM
Oranagra Oranagra is offline
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Here are high quality photos.

Wet:






Dry:


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  #14  
Old 08-18-2018, 05:11 AM
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estación seca estación seca is offline
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root rot on vase culture vanda Male
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Some of the tips are dead. That happens because we can't give perfect conditions. We bump the tips, we smach them, we let them stay dry too long.

Your plant should grow fine with those roots.
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  #15  
Old 08-18-2018, 06:24 AM
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Ben_in_North_FLA Ben_in_North_FLA is offline
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You may have to find the balance of time between soaking and drying out the plant. Vanda must have solid dry spell tween water sessions. Am sure that balance will vary amongst different plants. What is missing from your plant is the tell tale green tip on the growing roots and I suspect the constant wet is a problem that aggravates the condition. Growing vandas in water is a challenge. You can grow vandas in wooden baskets that soak up enough water to last them a couple of days. I would consider that option instead of the water vase.
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  #16  
Old 09-23-2018, 05:26 AM
Oranagra Oranagra is offline
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Hi,
i reduced soaking time on the vanda above, but the problem persists and seems spreading (although the newer roots, which were the last to sprout are not affected yet).

but recently one of my other vandas seems to be affected by something similar. and this one doesn't have a lot of roots, so it really worries me.

note: the gray area, which seems mushy, is actually quite stiff when dry. but it doe seem spread, and today the rest of that root tip got yellow (was green yesterday).

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  #17  
Old 09-26-2018, 01:42 PM
Oranagra Oranagra is offline
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here's a photo when that root is dry:


p.s. another thing that worries me with this one, is some black marking on the leaves, although they seem to exist for quite long, and if they spread, it's very slowly.
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