Brown Marmorated Stink Bug ( Halyomorpha halys )
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Minnesota First Detectors Brown Marmorated Stink Bug (Halyomorpha halys) D. Duerr, USDA Forest Service, Bugwood.org
description
Brown Marmorated Stink Bug ( Halyomorpha halys ). D. Duerr, USDA Forest Service, Bugwood.org. Outline. History/Distribution Identification Life History Why is it Important? Control. Where in the U.S. are BMSB Most Common?. Eastern U.S. Upper Midwestern Southern U.S. Pacific Northwest. - PowerPoint PPT Presentation
Transcript of Brown Marmorated Stink Bug ( Halyomorpha halys )
Minnesota First Detectors
Brown Marmorated Stink Bug (Halyomorpha halys)
D. Duerr, USDA Forest Service, Bugwood.org
Minnesota First Detectors
Outline
History/Distribution
Identification
Life History
Why is it Important? Control
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Where in the U.S. are BMSB Most Common?
A. Eastern U.S.B. Upper MidwesternC. Southern U.S.D. Pacific Northwest
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History/Distribution
Originally from China
First found in the U.S. in PA in 2001 (1st specimens were actually collected in 1996)
Most abundant in mid Atlantic states
David R. Lance
Minnesota First Detectors
Minnesota First Detectors
History/Distribution
BMSB numbers particularly high in eastern U.S. in 2010
Caused economic loss in some crops
Minnesota First Detectors
History/Distribution
In 2011, BMSB were not consistently high as in previous year
Not in high numbers in MN (yet)
How long before abundance in MN is like eastern U.S.??
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History/Distribution
First found in St. Paul (Ramsey Co.) in Nov. 2010 in MDA building
Possibly associated with package received from eastern U.S.
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Distribution in MN:1- Ramsey Co.1- Washington Co.2- Anoka Co.1- Winona Co. 1- Hennepin Co.1- Chisago Co.1- Carver Co.
As of Feb. 2012All were found in homes/buildings
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Identification Stink bugs are
shield-shaped Possess large
triangular plate on back
Well developed scent glands
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Identification
Possesses piercing-sucking mouthparts
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Identification of BMSB
About ½ inch long Mottled brownish
and grayish (marmorated = marbled)
Has banded antennae
Banded abdomen Veins highlighted
in blackWhitney Cranshaw
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Identification of BMSB
Metallic greenish gold ‘flecks’ on underside of BMSB
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Identification
Young nymphs yellowish brown, mottled with black and red
David R. Lance
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Identification
Older nymphs darker, with light bands on dark legs and antennae
Susan Ellis
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Don’t Confuse BMSB With…
Boxelder bug
Western conifer seed bug
Other true bugs
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Don’t Confuse BMSB With…
Native stink bugs
Native stink bugs
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Comparison of insects that might be confused with BMSB
Brown marmorated stink bugs
Native stink bugs
Masked hunter WCSB Squash bug BEB
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Which is BMSB?
33%
33%
33%
0 of 30
A B C
A. Insect AB. Insect BC. Insect C
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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
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Life History
Nymphs feed throughout summer
Mature into adults by fall
One generation per year
Gary Bernon
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On about how many different kinds of plants does BMSB feed?
25%
25%
25%
25% A. 10B. 20C. 200D. 2000
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Why Is It a Pest?
Feeds on 200 + plants Ornamental and
nursery plants, e.g. crabapples, maples, rose, Norway maple, white ash, viburnum, catalpa, hackberry, dogwood, willow, lilac
Gary Bernon
Gary Bernon
Minnesota First Detectors
Why Is It a Pest?
Nymphs feed shallowly
Adults feed more deeply and cause more severe damage
On leaves generally appears as small stippled areas and/or necrotic areas
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Why Is It a Pest?
Can feed directly on fruit and vegetables
Can cause water-soaked lesions, pitting, dimples, catfacing, depressed areas
On vegetables, e.g. beans, can cause warty growths
USDA
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Why Is It a Pest?
Crop pest: - Fruit, e.g. apple, peach, grape, raspberry- Ag crops, e.g. soybeans, corn, bean, peas, tomato, pepper
Gary Bernon
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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 Ellis
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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
