Thrips Dispersal and Soybean Vein Necrosis Virus (SVNV) in Wisconsin Soybean

2014

  • Chris Bloomingdale
  • Damon Smith
  • Russell Groves
  • UW-Madison
Project Media

 Soybean Vein Necrosis Virus (SVNV) is a Tospovirus that was first described in 2008 (Zhou et al., 2011) and first reported in Wisconsin in 2012 (Smith et al., 2013). SVNV symptoms include yellowing and clearing of the veins which eventually lead to necrosis of both the vein and leaf tissue. Soybean thrips, Neohydatothrips variabilis (Beach), have been identified as a principal vector of this virus (Zhou and Tzanetakis, 2013) making SVNV the first known virus to be transmitted by soybean thrips.

Since SVNV is new to Wisconsin, it is important to understand the timing of thrips movement and virus spread as well as the associated impacts the viral infection may have on soybean. The objective of this research was to establish field trials to investigate the species composition and timing of arrival of thrips in Wisconsin soybean fields, as this information might be important for developing management strategies to reduce the damage caused by SVNV.