Stink bugs in soybeans

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

Last week Ohio State University mentioned to be on the lookout for the brown marmorated stink bug, although they were not expected to be a concern. That thought has changed somewhat over the past week in regards to this potential pest and the rest of the stink bug complex that occur in soybeans. 

Some soybean fields have been found with much higher numbers of stink bugs than are normally seen, with some fields reaching a level that might need treatment. Since the article last week, reports of brown marmorated stink bug have come in from a few fields. With support from the Ohio Soybean Council, scouting trips have confirmed brown marmorated stink but in soybean. At this time only adults are being seen, but observations last year suggest that larger numbers of nymphs will start occurring within a few weeks. But greater numbers of the green stink bug and a smaller stink bug that is also green but with a reddish shoulder, this latter one being called the red shouldered stink bug are being found. This is a new stink bug that has not been seen very much in Ohio. It is not the red banded stink bug that is causing significant concern in southern states, but it nevertheless might be a potential problem. At this time, little is known about its damage potential. For the time being, it is recommend to group all stink bugs together for determining the need for treatment. Through Ohio Soybean Council support, sampling for stink bugs over the next few weeks across the state will be expanded.

To sample for stink bugs, take multiple 10-sweep samples with a sweep net in multiple locations throughout the field. Average the number of stink bugs in the 10-sweep samples. The threshold to treat is 4 or more stink bugs, adults or nymphs. If soybeans are being grown for seed, the threshold can be dropped to 2 or more stink bugs. Pods should still be green. Because stink bugs often occur mainly on the field edges, especially next to woody areas, it is suggested to sample both field edges and within the field to determine which parts of the field might require treatment. 

See the soybean insect images page,, on our website for pictures of the various stink bugs. The ones most likely to be in Ohio soybean fields include the brown marmorated stink bug, the green and red shouldered stink bugs, the brown stink bug (with rounded shoulders) and the spined soldier beetle (with pointed shoulders), this last one actually being a beneficial predator.

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

LPV Seed Treater

The LPV Seed Treater has set a new standard boasting three configurable weighing methods for any-sized operation, a standard 42” ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form