Virus?

[bottlemarkercup]

Phal amboinenesis bloom gradually developed over about a week depressions and pitting on the rear of the flower. Everything else looks good. Photo is attached.

Thoughts? Virus? Nothing? What should I do?

Thanks!

[rbarata]

Mites?

[Ray]

I agree - critter, not disease.

[rbarata]

Rub gently under the leaves with apiece of white cotton embeded in a solution of water+5% alcohol (approx).
Check the cotton color after this procedure.

[jcec1]

Originally Posted by rbarata

Mites?

I agree, the back of the leaf looks suspiciously "dusty" when affected by red spider mite.

[camille1585]

Originally Posted by rbarata

Rub gently under the leaves with apiece of white cotton embeded in a solution of water+5% alcohol (approx).
Check the cotton color after this procedure.

Pure rubbing alcohol (I have the 90% one) works well too with no damage to the plants. Kills all critters instantly. I didn't know it worked as low as 5%.

[rbarata]

I didn't mentioned but the 5% is for ethilic alcohol. We don't have rubbing alcohol around here.

[camille1585]

Originally Posted by rbarata

I didn't mentioned but the 5% is for ethilic alcohol. We don't have rubbing alcohol around here.

I call it rubbing alcohol out of habit, from having lived in the US. But you are right, here rubbing alcohol is hard to find and I use pure 70% (not 90 as written earlier) or 96% "denatured alcohol" which I think is ethanol.

[Ray]

In the the US, the common rubbing alcohol is isopropanol.

[bottlemarkercup]

Thank you all for your help thus far.

Wasn't sure if you meant to rub the leaves or the flowers with alcohol-soaked cotton, but I did both anyway.

Apart from dust on the leaves, nothing appeared on the swabs.

Thoughts? Should I remove the flower?