Main Symptoms

Tobacco etch virus (TEV) causes rather significant « vein clearing » and several small chlorotic spots  which gradually become necrotic. On bottom leaves some veins may turn brown and necrose. The plants are stunted when they have been infected early.
 
Symptoms of tobacco virus complex TEV and TVMV are described in the fact sheet of tobacco vein mottling virus (TVMV).
 
Some of the information on the worldwide distribution of the disease is obtained from surveys conducted by CORESTA (Cooperation Centre for Scientific Research Relative to Tobacco). The reliability of the information is not confirmed in all countries.