ABAED57C-C055-E65F-315F-E7474947AD16
 

Brown Marmorated Stink Bug

In-Depth Downloads

Symptoms

  • Brown marmorated stink bug (BMSB) cause damage by injecting saliva and then ingesting the liquefied plant material during fruit and seed development and maturation
Photo: BMSB damage to an apple
Damage to fruit
 
Photo: BMSB damage to soybeans
Damage to soybeans
 
Photo: BMSB damage to corn
Damage to corn
 

Impact on Crops

  • Soybeans are vulnerable to yield loss after R3 and may develop green stems and mature improperly. Seed quality can be negatively impacted
  • Insect is a threat to sweet corn industry but also feeds and can reproduce on field corn
  • Stink bug presence may make silage unpalatable to cattle
  • Feeding injury on corn ears may increase potential for ear molds and can impact grain quality

Photo: Stink bugs feeding on corn ears
 
Photo: Stink bug feeding injury to soybean leaf
 

Pest ID

1.   BMSB has distinct doubled white band on antennae.

On brown stink bug, (BSB), white band is single or nonexistent

   
2.   BMSB has a broad white pattern on abdomen.

Pattern is narrow on BSB

   
3.   BMSB has red compound and simple eyes.

BSB has brown or black eyes

Photo: Brown marmorated stink bug
Brown marmorated stink bug – Halyomorpha halys
 
Photo: Brown stink bug
Brown stink bug – Euschistus sp.
 

Pest Facts

  • Scientific name is Halyomorpha halys
  • Introduced to mid-Atlantic region of the U.S. in the late 1990s from Asia
  • Is a strong flyer, allowing it to disperse broadly across the U.S. Has been found in all states east of the Mississippi River and also Minnesota, Iowa, Nebraska, Arizona, California and Washington
  • May not develop as a significant pest until 5 or more years after detection in a region
  • Hosts include more than 20 tree, shrub and small fruit species, and many vegetables and field crops, including corn and soybeans. May be highly destructive to crops
  • Typical of other stink bugs, BMSB emits a pungent odor when disturbed
  • Few natural enemies exist in North America; insect is distasteful to predators

Life Cycle

  • Develop with incomplete metamorphosis - egg, five instars and adult stage
  • Eggs are shaped like a beer barrel, laid in clusters
  • Brown to black nymphs congregate after hatching
  • Nymphs lack fully developed wings
Illustration: Brown Marmorated Stink Bug Life Cycle
 

Management Considerations

  • Scout soybeans from R2 till mid-August
  • Scout especially field edges and treat them separately if warranted (see photo below)
  • In soybean the threshold is 2.5 to 3.5 BMSB every 15 sweeps
  • Populations will be highest at dusk and dawn, and reinvasion is possible after a pesticide treatment
  • Many insecticides are labeled for stink bug control, however, BMSB may be more tolerant of many pesticides than other stinkbugs
  • Nymphs are more sensitive to insecticides than adults
  • Check local control recommendations and always read and follow label instructions

Photo: Green soybeans along field edge showing delayed maturity due to BSMB feeding.
Green soybeans along field edge showing delayed maturity
(green stem syndrome) due to BMSB feeding.

 

Image credits:
Rutgers University
Dr. Galen Dively, University of Maryland
Drs. Tracy Leskey & Jeff Wildonger, USDA-ARS
Dr. Marlin Rice, Pioneer Hi-Bred
Dr. Doug Inkley, NWF

 

54457370-0FF1-E902-CD06-7AD231DC6CF8

 
Weather
Close this Tab

Weather Dashboard

See All | Customize

The latest data for your fields at-a-glance

Today's Forecast
Time Temp Precip Wind
5-Day Forecast
Date Low High
Markets
Close this Tab

Markets Dashboard

See All | Customize

The latest data for your fields at-a-glance

Commodity Futures

Quotes delayed 20 minutes.
Commodity Price Change Last Updated
Commodity Futures Feed Not Available
Quotes delayed 20 minutes. Data provided by FutureSource

Local Cash Markets

Commodity Price Basis Last Updated
Local Cash Market Feed Not Available