Soybean vein necrosis virus confirmed in Indiana

decrease font size  Resize text   increase font size       Printer-friendly version of this article Printer-friendly version of this article

The Purdue Plant and Pest Diagnostic Lab (PPDL) confirmed Soybean Vein Necrosis Virus (SVNV) this week in Indiana. The virus was first detected in Indiana in 2012, but was not detected until late August. Currently, the virus has only been confirmed in LaPorte County (northwest IN), but it is likely that other fields may be affected. It is important to accurately diagnosis SVNV since it can resemble other diseases and disorders, including herbicide injury.

click image to zoomSymptoms caused by this virus include light green patches or mottled green and brown speckled areas associated with veins. Symptoms caused by this virus include light green patches or mottled green and brown speckled areas associated with veins (Figure 1). As symptoms progress, affected leaf tissue may die, and leaves will appear scorched.

SVNV is a member of the Tospovirus family, which are vectored by thrips. These are tiny, winged insects that are present in all soybean fields, every year. They feed on plant juices and pollen, but they are not considered pests and have not caused damage to Indiana soybeans in the past. Although growers may be tempted to apply an insecticide to reduce thrips populations “just in case”, at this point in time we do not recommend insecticide applications in response to detection of SVNV, for two reasons: 1) the disease is not yet found widely in the state, and 2) we don’t know what, if any, effect disease may have on yield. For now, we will continue to keep an eye on this disease, and assess its potential impact so that we can make more informed future management recommendations. We encourage growers and consultants to inspect fields for symptoms of SVNV and send samples to the PPDL for diagnosis so we can gather information on the extent of this new disease in Indiana.


Buyers Guide

Doyle Equipment Manufacturing Co.
Doyle Equipment Manufacturing prides themselves as being “The King of the Rotary’s” with their Direct Drive Rotary Blend Systems. With numerous setup possibilities and sizes, ranging from a  more...
A.J. Sackett Sons & Company
Sackett Blend Towers feature the H.I.M, High Intensity Mixer, the next generation of blending and coating technology which supports Precision Fertilizer Blending®. Its unique design allows  more...
R&R Manufacturing Inc.
The R&R Minuteman Blend System is the original proven performer. Fast, precise blending with a compact foot print. Significantly lower horsepower requirement. Low inload height with large  more...
Junge Control Inc.
Junge Control Inc. creates state-of-the-art product blending and measuring solutions that allow you to totally maximize operating efficiency with amazing accuracy and repeatability, superior  more...
Yargus Manufacturing
The flagship blending system for the Layco product line is the fully automated Layco DW System™. The advanced technology of the Layco DW (Declining Weight) system results in a blending  more...
Yargus Manufacturing
The LAYCOTE™ Automated Coating System provides a new level of coating accuracy for a stand-alone coating system or for coating (impregnating) in an automated blending system. The unique  more...
John Deere
The DN345 Drawn Dry Spreader can carry more than 12 tons of fertilizer and 17.5 tons of lime. Designed to operate at field speeds up to 20 MPH with full loads and the G4 spreader uniformly  more...
Force Unlimited
The Pro-Force is a multi-purpose spreader with a wider apron and steeper sides. Our Pro-Force has the most aggressive 30” spinner on the market, and is capable of spreading higher rates of  more...
BBI Spreaders
MagnaSpread 2 & MagnaSpread 3 — With BBI’s patented multi-bin technology, these spreaders operate multiple hoppers guided by independent, variable-rate technology. These models are built on  more...

Comments (0) Leave a comment 

e-Mail (required)


characters left

Portable Conveyors

Convey-all portable conveyors are designed to handle your crops gently and efficiently. We offer an extensive line of high capacity ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form