Image Number: 1402032

Symptoms vary depending on the strain of the virus present and the conditions of plant growth. Veinclearing (lightening of the tissue in and around veins) is followed by a faint, light-green mottling of the leaf. This mottling is similar to that observed with tobacco mosaic; but with etch, the blotches are much less pronounced. Older infected leaves may show a stippled pattern of numerous, small, white flecks and fine lines (etchings), especially along veins.
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United States


Kingdom: Viruses
Phylum: Viruses
Class: Single-stranded, positive-sense, RNA (Group IV)
Order: Unassigned single stranded positive-sense RNA viruses
Family: Potyviridae
Genus: Potyvirus
Subject: Potyvirus TEV


Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Solanales
Family: Solanaceae
Genus: Nicotiana
Subject: Nicotiana tabacum (flue-cured type) L.
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Image uploaded:
Sunday, March 10, 2002
Image last updated:
Tuesday, November 9, 2010