Epicattleya Siam Jade 'AVO' with raised area on leaf

[shining_epiphany]

Just got this in the mail today. The area is lighter in color, raised and firm. Anybody know what it is?
It came from ians_orchids on ebay

[Izzie]

Larger pictures would be great. It's really hard to tell from ones that small.

What grower is this from?

[dounoharm]

hmm, looks like some mechanical damage from being sprayed with too strong a chemical solution....maybe...how does the rest of the plant look?

[Izzie]

Oh cool, they're bigger now!
I agree with dounoharm, it doesn't look like any infection I've ever seen.

When I'm uncertain about things like this, I isolate the plant, and take pictures, like you have. Take new pictures or inspect the plant closely every week for a while, and see if anything has spread. Can give you some clues if it's mechanical or not, or if the infection has already been taken care of.

[Izzie]

Maybe edema?
From my favorite pest/disease reference, a pdf by Sue Bottom:
"•Excess water is absorbed by the roots quicker than it is lost by the leaves, causing swelling of plant cells and producing a blister-like lesion.
•Occurs when plants watered during warm days and the nights turn cool or during periods of cool weather when water quantity and/or frequency is not reduced.
•The blister-like symptoms can appear on upper or lower leaf surfaces, stems, petals or sepals."

Here's a link to the rest of the pdf- http://www.staugorchidsociety.org/PD...ySueBottom.pdf

The pictures kind of look similar to yours, perhaps at later stages.

[shining_epiphany]

Thanks for the link Izzie, i was looking for something like that.

[Izzie]

Glad to help! It's one of the best. Keep us posted!