First Report of Tobacco ringspot virus Associated With Fanleaf Disease in a Washington State Vineyard

The Occurrence of Grapevine Fanleaf Virus in Washington State Vineyards

Grapevine degeneration in grapevines caused by Grapevine fanleaf virus (GFLV) has been documented in many viticultural regions worldwide (Andret-Link et al. 2004). It is one of the major economically important virus diseases affecting the longevity of grapevines and reducing the fruit yield and fruit quality. Infected grapevines show a range of foliar symptoms consisting of leaf deformation, ye...

A Virus Disease of Watermelon in Wisconsin Incited by the Tobacco Ringspot Virus'

In August 1946, marked viruslike symptoms were observed on watermelon {Citrullus vulgaris Schrad.) and muskmelon (Cucumis melo L.) plants in a field at Merrimac, Wis. Inoculations from infected plants to tobacco (Nicotiana tabacum L.), cucumber (Cucumis sativus i.)> ö.nd watermelon demonstrated that the disease was of virus origin. Isolates from watermelon and muskmelon were identical, and one ...

Fanleaf degeneration/decline disease of grapevines

Introduction Fanleaf degeneration/decline disease is one of the most severe viral disease complexes of grapevine worldwide. It is also one of the oldest known viral diseases of Vitis vinifera with descriptions of symptoms being reported in Europe as early as 1841. This disease is now known to affect grapevines in all temperate regions where Vitis vinifera and hybrid rootstocks are grown. Within...

Emergence of Genotype VIIg of Velogenic Newcastle Disease Virus in Iran, 2018: The First Report

Newcastle disease virus (NDV) is a prototype member of avian paramyxovirus serotype 1 (APMV-1), which causes severe and contagious disease in the commercial poultry and wild birds. In this study, we report the results of phylogenetic analyses of recent NDVs isolated from Markazi province of Iran during a recent outbreak in the commercial broiler with respiratory signs and digestive system lesio...

First report of Johne's disease in Iran