Late Stages of Tomato Spotted Wilt Virus Infection

The symptoms to note with TSWV on late-season plants are three keys ones: 
1 -  leaf with major veins necrotic.
(top left)
2 - whole leaf with necrotic spots.
(top right)
3 -stem lesions; parallel wavy lines sometimes also with circular depressed lesions.
(bottom two photos)

(Pictures & description courtesy of Paul Bachi)

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