Wednesday, June 15, 2016

Tomato Spotted Wilt Virus on Dahlia

Dahlia plant with yellow flecking on the leaves caused by a virus
Tomato Spotted Wilt Virus on dahlia - note
the yellow flecking near the tip of the leaf
(Photo: NMSU-PDC)
Featured Diagnosis: Tomato Spotted Wilt Virus is a common virus with the ability to cause disease on a wide range of hosts. In New Mexico, it is often found on peppers and tomatoes. Recently, the virus was identified on dahlia. Dahlia is a known host for this pathogen, but this is the first report of the disease on dahlia in New Mexico. The symptoms on the dahlia samples submitted to the NMSU Plant Diagnostic Clinic were subtle; a yellow flecking on some of the leaves.

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