Cattleya: Possible fungal/bacterial infection; dots on leaves

[StanTheMan]

K so my Catt was doing apparently fine since the infection. It was in october I think when I had to cut all the infected tissue and spray it with hydrogen peroxide. Ever since I saw no activity but shriveling... So I try to not let it be dry for way too long (which I think is not bad, since it's on a dormant period). He had this markings on the underside of the leaves, this sort of darker spots all throughout the leaf, but no damage appeared. Then suddenly I see this yellowing leaf (at most it took two days, though maybe less since I check on them almost daily), and the markings on the underside became very distinct.

Do you think I can cut the bulb, say, at the middle, or should I cut it all the way through? Mind you, this isn't a backbulb, so it cannot be just the age. Plant has six canes, and this is number 3 (assuming number 1 is the youngest cane). I guess I'll also spray it with peroxide again just to play it safe.

Thanks in advance,

Stan.

[Roberta]

I think the leaf just getting ready to drop naturally. Unless the pseudobulb continues to show signs of rot, I would just leave it alone. The plant looks healthy. Peroxide is pretty useless as a treatment. If rot seems to be progressing down the pseudobulb, then surgery could be needed, But for now, just observe,

[StanTheMan]

Thanks, Roberta! It's so easy to panic when it's your most favorite orchids I just noticed the dark markings on the top of the p'bulb are also present in the other ones, mostly. Never actually noticed them so I hope it's just your classic anthocyanin.

Hope you have a good evening,

Stan