Rather than guessing send it to an independent lab. It will need a 1/2 cup
sample air dried. Cost is about $15. If a nutrient problem, they will ID
it. Send a note asking for help. I used to do this for a living.

Chuck


"V_coerulea" wrote in message
...
Before destroying the plant, and if you can't afford to virus test, I'd
try
treating with an all purpose micronutrient. Roses respond in some rather
weird ways (and some predictable ones too) to lack of certain
micronutrients
such as zinc, molybdomen, copper (or its overdose), and others. Buy a
fertilizer with a complete micronutrient additive and spray on the leaves
as
well as drenching the roots. If 2 or 3 of these treatments doesn't cure
the
problem, than it's probably fungal or viral. Treatments of Dithane and/or
Physan might help. If not, follow Iris's advice.
Gary

"cristina" wrote in message
...
Do anyone knows what kind of disease this is?

The younger leafs fall down on touching and they have this strange
design....

http://www.geocities.com/artyard/pia.../malattia1.jpg