Watch for mobile soybean pests

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

Kudzu bugs and brown marmorated stink bugs have been rapidly spreading to new geographies. Brown marmorated stink bugs (BMSB) have already been detected in a number of states, up to 38 in total, including every state east of the Mississippi. Kudzu bugs have rapidly spread across eight southeastern states since the first detection three years ago.

Strong fliers with the ability to hitchhike on vehicles and farm equipment, both types of bugs threaten soybean fields. After arriving in a new territory, the bugs have the ability to overwinter and repopulate the following spring.

“The kudzu bug has been spreading the fastest, and it is difficult to predict how far north the kudzu bug will travel,” reports Paula Davis, DuPont Pioneer senior manager for insect and disease resistance traits. “As for the brown marmorated stink bug, further expansion into the Midwest is possible, although establishment in a new area generally takes four to six years.”

DuPont PioneerKudzu bugs are on the move. Both bugs cause feeding damage, reducing soybean yields. To reduce risk from future kudzu bug and BMSB infestations, growers must keep tabs on threat levels for the coming season, closely monitor fields and follow insect reports. For pest management, close scouting and insecticides are the best solutions.

Kudzu bugs, also called bean plataspids, are primarily hosted by kudzu and soybean plants. Adult kudzu bugs are known to fly 1 1/2 miles from kudzu, an invasive weed that covers much of the South, to soybean fields. Feeding on soybean stems and leaves, kudzu bugs induce stress on soybeans, reducing pods per plant, seeds per pod and seed size. Bug colonies in soybean fields may also reduce yields and cause harvest problems by delaying soybean maturity and causing green stem syndrome.

The average yield loss due to kudzu bug infestations has been measured at 18 percent in Georgia and South Carolina and may range up to 47 percent. Since the bugs feed on soybean stems, the insecticide treatment must penetrate the canopy to be effective.

DuPont PioneerStink bugs cause problems, too. Like kudzu bugs, BMSB may induce yield loss and poor seed quality in soybeans. In corn, ear feeding injury may increase potential for ear molds and also negatively impact seed quality.

Unlike kudzu bugs, BMSB are not new pests. These insects have been in the United States for years, and populations have increased during the past couple of summers. Hosts for BMSB include more than 20 tree, shrub and small fruit species and many vegetable and field crops. These insects have the potential to be highly destructive to crops, including sweet corn and soybeans.

“In the spring, the bugs are first attracted to flowering trees to feed and lay eggs. In early summer, they may fly to corn before moving to soybeans during the pod development phase,” explains Davis. “The bugs can be difficult to control, because they are strong flyers and can easily move in and out of a field in the same growing season.”

Unfortunately, these distasteful bugs have few natural enemies in North America. For management, close scouting is essential, particularly around the field borders where bugs tend to feed. Many insecticides are labeled for stink bug control, although BMSB may be more tolerant of many pesticides than other stinkbugs. Also, due to the pests’ high mobility, a second treatment may be necessary.

For more information on pest management options, talk to your local Extension agent or DuPont Pioneer agronomist.


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 

Name
e-Mail (required)
Location

Comment:

characters left


Aluminum Grain Trailers

Maurer Manufacturing offers a complete line of high quality aluminum grain trailers. Manufactured in Spencer, Iowa, Maurer aluminum grain trailers ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form