Cattleya orchid Brown on edges of the leaf.

[rbarata]

Could just give the hydrogen peroxide a miss. I have a feeling that hydrogen peroxide not only does something to unwanted organisms, but can also set the plant/roots etc back a lot.

Something to read about it.

[SouthPark]

Originally Posted by rbarata

Something to read about it.

Thanks rbarata! That's one of the articles I read a long time ago. I think it'll be fine for spraying on leaves or stem. I avoid spraying that stuff on roots. Also, the part about - once a bottle is open, degradation of the H2O2 begins. I don't know at what rate though. The possible issue is - if somebody doesn't use it much, and then opens a bottle to use a little bit, and then it sits there for ages, then it could be a waste.

That part about drenching with H2O2 for purposes of 'oxygenating' the roots - that raises my eyebrows.

---------- Post added at 10:14 AM ---------- Previous post was at 10:07 AM ----------

Originally Posted by Justright1

I don't seem to put in the light much as you can see by the dark green leaves, I hope you're right it's better than a bacterial infection. when I eventually put it in the orchidarium I will have LED lights to provide light. I was using a flash in the last picture here's one without. And thank you

It could be bacterial. If the leaf remains soft and mushy in that area ----- ie. if it does not dry up and go hard in that region within say a few days or a week, or if it appears to be increasing in area, then use sterile cutters to cut that part off. Cut a little bit more than necessary, and dispose of that portion properly. Isolate the orchid from the others.

Put the plant in an area with more light, and provide good air circulation. Good air circulation is a golden rule.

[Justright1]

How long would I have to separate the cattleya orchid from the others. :If it had the bacterial infection.

[SouthPark]

Originally Posted by Justright1

How long would I have to separate the cattleya orchid from the others. :If it had the bacterial infection.

As long as is necessary. That is - if you notice that your plant is growing just fine for a few months with no more of this issue occurring, and you're happy with the situation, then just re-introduce it to the rest of your collection.