Bite mark or what?

[Troythediver]

This is on my oncidium. The newest growth is the only one with marks like this. What could be doing it?

[Troythediver]

Another angle. It's the inner most leaf. Could it be sun damage of some sort? The plant is indoors and nothing like this has been found on other orchids.

[MrHappyRotter]

It's hard to say, but to me it doesn't look like a bite. It looks like simple mechanical damage. Maybe the leaf got stuck down in there and got ripped or torn a bit from general movement.

[Troythediver]

Well, it looks like from how the pot was positioned that perhaps the leaf that was covering it folded up thereby allowing direct sun to beam in to a leaf in its baby stage. I rotated the pot just in case my hypothesis is correct. Anyone else have trouble with sun damage, only on new/baby leaves? The mature leaves on the plant are leathery.

[kindrag23]

Okay I am blind as a bat, so may want to take with a grain of salt. This looks to me like a mechanical doing. I don't know of any bug that can chew in a straight line :-), and if the plant has been covered with older leaf growth not sure how it could be sun burn. In reading your above post I would think it would be more severe if it were that burned. That looks to me like a more recent cut and heal mark. My paph leaf was cut by me on accident while using a box cutter to cut away all of the newspaper and masking tape. The edges have since dried up and turned brown.

[RosieC]

It's a very straight line, so I think mechanical damage, or possibly a fold which has then broken when trying to straighten.

[euplusia]

I agree with Rosie, a kind of growth disorder, benign.