Cotton

This is a viral disease, which is spread by white fly. Firstly, its effect is seen on the upper soft leaves. The primary symptom of this disease is that the leaves curl upward & small veins become thick.

 It is one of the most devastating disease of cotton. This disease occur at all stages but more severe when the crop are 50-60 days old. 

As we know that each and every crop have its commercial use. Similarly cotton have also its own importance.