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 Post subject: Is this sunburn
PostPosted: Tue Nov 10, 2015 4:20 pm 
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Joined: Tue Oct 13, 2015 7:58 am
Posts: 31
Location: San Anselmo, CA
or disease

Phal equestris var ilocos

Purchased from Norman's Orchids, September. None of the other plants in the shipment or in my collection have this problem. And it has looked like this since I got it, hasn't really gotten worse.

I have my Phals in a south facing window (I know, I know - but it works for me, and this particular tree-shaded window)

One plant in the shipment died of something different shortly after it arrived, and some of these plants didn't take well to the strong change in light (an ambonosa lost one of the two leaves it arrived with.)

The photos showing brown spot is of the oldest leaf - the newer ones don't have it. The last photo that clearly shows yellow mottling is an older leaf, but not the oldest. The newest leaf (not a baby, it arrived with this leaf) shows similar yellow mottling.

Thank you!


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 Post subject: Re: Is this sunburn
PostPosted: Tue Nov 10, 2015 6:53 pm 
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Joined: Fri Oct 24, 2003 1:57 pm
Posts: 16537
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Location: Texas, USA
I would treat this as a fungal disease. Preferably a systemic one like Cleary 3336.

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 Post subject: Re: Is this sunburn
PostPosted: Wed Nov 11, 2015 4:46 pm 
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Joined: Tue Oct 13, 2015 7:58 am
Posts: 31
Location: San Anselmo, CA
Thank you.


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