Download - Brown Marmorated Stink Bug

Minnesota First Detectors

Brown Marmorated Stink Bug


Outline

History/Distribution

Identification

Life History

Why is it Important? Control



Originally from eastern Asia, incl. China, Korea, and Japan


A. Eastern U.S.B. Upper MidwesternC. Southern U.S.D. Pacific NorthwestE. Not sure

Where in the U.S. are BMSB most common?


USDA-NIFA SCRI from www. stopbmsb.org



First collected in PA in mid 1990’s (not confirmed until 2001)



BMSB numbers particularly high in eastern U.S. in 2010 (due to weather?)

Caused economic loss in some crops



In 2011-2012, BMSB (i.e. crop damage) were not as consistently high as in 2010

Not in high numbers in MN (yet!)



First found in St. Paul (Ramsey Co.) in Nov. 2010 in MDA building

Possibly associated with package received from eastern U.S.


All were found in homes/buildings

Distribution in MN:1- Ramsey Co.1- Washington Co.3- Anoka Co.1- Winona Co. 4- Hennepin Co.1- Chisago Co.1- Carver Co.1- Dakota Co.

As of December, 2012


Identification

Stink bugs are shield-shaped

Possess large triangular plate on back

Well developed scent glands


Identification

Possesses piercing-sucking mouthparts


Identification

About ½ inch long Mottled brownish

and grayish (marmorated = marbled)

Has banded antennae

Banded abdomen Dark colored veins Whitney Cranshaw


Identification

Metallic greenish gold flecks on underside of BMSB


Identification

Young nymphs yellowish brown, mottled with black and red

David R. Lance


Identification

Older nymphs darker, with light bands on dark legs and antennae

Susan Ellis


Don’t Confuse BMSB With…

Boxelder bug

Western conifer seed bug

Other true bugs


Don’t Confuse BMSB With…

Native stink bugs

Native stink bugs


Comparison of insects that might be confused with BMSB

Brown marmorated stink bugs

Native stink bugs

Masked hunter WCSB Squash bug BEB


Which is BMSB?

A B C

A. Insect AB. Insect BC. Insect C


Life History

Overwinter as adults

Emerge about May Between June and

August, lays about 28 eggs at a time on undersides of leaves

Can lay eggs several times

David R. Lance


Life History

Nymphs feed throughout summer

Mature into adults by fall

One generation per year

Can see adults through most of year

Gary Bernon


A. 10B. 30C. 300D. 3000

On about how many different kinds of plants does BMSB feed?


Why Is It a Pest?

Feeds on 300 + plants Nymphs have shorter

mouthparts, feed more shallowly

Adults feed more deeply and cause more severe damage

Stephen Ausmus


Why Is It a Pest? Ornamental and

nursery plants, e.g. crabapples, maples, rose, Norway maple, white ash, viburnum, catalpa, hackberry, dogwood, willow, lilac

On leaves generally appears as small stippled areas and/or necrotic areas

Gary Bernon


Why Is It a Pest?

Crop pest: - Fruits, e.g. apple, blackberry, peach, grape, raspberry- Vegetables, e.g. sweet corn, bean, peas, tomato, pepper- Field crops, e.g. soybeans, field corn

Gary Bernon


Why Is It a Pest?

Can feed directly on fruits and vegetables

Injury through removal of plants cells and injecting saliva

Can cause water-soaked lesions, pitting, dimples, catfacing, depressed areas, warty growths

USDA


Why Is It a Pest?

Nuisance invader in structures in fall, like boxelder bugs and multicolored Asian lady beetles

Has well developed scent glands!!

Susan EllisSusan Ellis


Control

Use of insecticides, although control challenging, not always effective This is not long-term

solution Research into possible

biocontrol agent – tiny parasitic wasp that attacks eggs

Susan Ellis


Questions?