Requiem in Orchid's house - help needed

[kavanaru]

as I have mentioned in another thread, some of my plants have had a terrible attack of thrips during my holidays, which I am still trying to erradicate... Mainly they attacked my catasetinae (you can see the result on Pics 1, 2 & 3 - Pci 3 Cycnoches haagei, which I do not think I witll be able to save ). Some ofthem jumped to my "Cattleyas"... Result, many of them have developed virus symtoms. Some of them so quick that I just decided to ger rid of them

Lost plants :
Blc. Eagle Eye 'All Victory'
Cattleya percivaliana
Lc. Chyong Guu Swan 'White Jade'
Lc. Chyong Guu Swan 'White Jade'
Lc. Loog Tone 'African beauty'
Lc. Mini Purple var. coerulea

Then I have some other plants, for which I need your help in order to understand what is going on with them:

Pics 4 & 5 (Cymbidium devonianum) and 6, 7 & 8 (Cattleya skinneri 'Heiti Jacobs' ), in these two plants, several brown spots have developed on the leave. They have stayed on teh surface and after spraying with Physan, they stopped to grow. Only the Cymbidium's leave have started to become yellowish... Any ideas what this could be?

Pic 9 (Cattleya skinerii 'Oculata'), some leave have developed these small black spots on the underside... (please don't tell me this is a virus I love this plant so much...)

Pic 10 (Blc. Hawaiian Satisfaction 'Romantic') some leave have started to "dry out" gettingthe aspect of carton and becoming a bit yellow... They seem to have stopped and stayed at this point (picture)... any ideas?