Bulbophyllum a.doribil spider getting worse
 

yes I've tried every thing I know wiped it down with alcohol changed lighting level did'ent water yesterday it just gets worse, any ideas right now I would really appreciate I'm doing the best I can not to lose this plant. thanks

I am going to say possible sunburn.
Also is this a lower leaf, I know with my phal's they drop the lower leaf.

Your instincts are correct by giving this a humidity tray.
This orchid plant prefer to be watered evenly moist, except a slight drying in the middle of winter ( maybe 2 weeks of watering every 3 days only). During growth period in the warmer months, this plant should be watered lavishly, so they are never dry but not wet.
Because of the high humidity and moisture conditions loved by this orchid, fungus can be a problem. A monthly preventative spray of fungicide is desirable to ward off this fungi problems.
Good air movement is a must to keep leaf fungus down, because of the heavy watering regimen.
I have a 2 gallon humidifier with built in oscillating fan as a supplement.

thanks bud, does physan20 help with fungus; if not what do you recomend

my home made fungicide remedy is a mixture of:

10 drops dish soap
1/2 teaspoon cinnamon extract (don't use the powder) = get this on the spice aisle of the supermarket or online
2 cups tepid water from the sink

spray the whole plant until drenched = preventive measure for fungi

*but if you already have fungi then resort to the big guns.....chemicals you can buy in the garden shop of Home Depot

sorry here's a better pic

no i dont have fungi but i'm working on a basement grow room and its nice to know a preventive measure to use thanks

I thought you put this in that humidity tray with blue plastic balls....
If you can look at RJ's tread, he made a fish bowl with hydroton and moss that helps to get an evenly moist environment for your net pot.

I just took it out to get a good pic of it

Take a look at RJ's fishbowl set up and I copied it for my Masdevallias and it really worked for me.

http://www.orchidboard.com/community...ass-bowls.html