Yellow leaf, possibly virus?
 

Hello there,

I have an Angraecum Sesquipedale, and one of the leaves has slowly been turning yellow and less stiff than the rest of the plant. Initially I believed that this was due to over-watering, so I cut back on how often I watered it. However, the yellow seems to have spread further into the leaf and I'm worried that soon the entire leaf will be in danger and possibly the plant itself. It's a very young plant. Any ideas? Thank you.

- Justin

Yes, it is at the base. A photo is provided: http://img.photobucket.com/albums/v6...1609Medium.jpg

It looks healthy enough to support it being an older aged leaf. If it's a gradual yellowing, not splotchy, or clustered with either/or brown black spots as such, good rule of thumb would be age. When you remove the leaf look in the area of attachment and see if you see any type of pest, mealy's love ang's.

not a virus to me, but a old leaf

Thanks everyone, I appreciate your comments. I feel much better now.

Now watch for aerial roots. They often emerge through the leaves and this often happens to the strap. Happy aging of an orchid.

I agree that it is ageing. Take it off completely when it is dead. So the growth of the new roots won't be restricted.

I wouldn't worry about that leaf. I agree with the consensus that it's just an old leaf.