what happened my Dendrobium ?

[stapelia]

Dendrobium Alliance help me what that black dots on the leaf....what can I do for thıs my friends?

[lais817]

I'll bump this as I think I've got the same problem, black specks all over just one of the leaves on the lead cane, they feel bumpy to the touch, but if I try to scrape them off it damages the leaf. Any ideas?

[kiki-do]

Sun damage perhaps? Is it in strong direct light? This is the time of year that the light intensity is changing. I really am not a good one to give ideas as dendrobiums are not easy for me to figure out, either. But I have been moving my chids around alot lately due to the season change.

[kmh]

Could be fungal, if it's just on the leaves. Also, the underside of the leaves are looking silver, which could be spider mites. Wipe the leaves off with a damp, white paper towel and if you see a rusty residue, you may have red spider mites. I would treat with a fungicide and also something for mites. Fungal problems usually don't kill the plants, but mites will. They also spread disease and are usually a problem in the fall and winter when the humidity drops. Good air movement decreases both problems.

[Bloomin_Aussie]

Likely fungal but could possibly be viral. One of my dends had similar spots which later developed into a ring shaped pattern that was obviously an ORSV infection. I would separate it from the rest of your collection and observe for a few months.