find a disease and its exact cause
i have a paddy leaf with me i want to find the disease stage and exact cause of that disease among all the symptoms. so what kind of tests do i need to do for that sample.?
Outside United States plant disease
I am not sure I understand the question. You have a leaf with disease and you want to get the disease diagnosed? Are you in Missouri?
More information or even pictures would be helpful in diagnosing a disease.