NDLI: Species Composition and Abundance of Stink Bugs (Hemiptera: Heteroptera: Pentatomidae) in Minnesota Field Corn.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Koch, Robert L. Pahs, Tiffany
Spatial Coverage	Minnesota
Description	Author Affiliation: Koch RL ( Department of Entomology, University of Minnesota, 1980 Folwell Avenue, Saint Paul, MN 55108. koch0125@umn.edu.); Pahs T ( Minnesota Department of Agriculture, 625 Robert Street North, Saint Paul, MN 55155.)
Abstract	In response to concerns of increasing significance of stink bugs (Hemiptera: Heteroptera: Pentatomidae) in northern states, a survey was conducted over 2 yr in Minnesota to characterize the Pentatomidae associated with field corn, Zea mays L. Halyomorpha halys (Stål), an exotic species, was not detected in this survey, despite continued detection of this species as an invader of human-made structures in Minnesota. Five species of Pentatomidae (four herbivorous; one predatory) were collected from corn. Across years, Euschistus variolarius (Palisot de Beauvois) and Euschistus servus euschistoides (Vollenhoven) had the greatest relative abundances and frequencies of detection. In 2012, the abundance of herbivorous species exceeded 25 nymphs and adults per 100 plants (i.e., an economic threshold) in 0.48% of fields. However, the abundance of herbivorous species did not reach economic levels in any fields sampled in 2013. The frequency of detection of herbivorous species and ratio of nymphs to adults was highest during reproductive growth stages of corn. The predator species, Podisus maculiventris (Say), was detected in 0 to 0.32% of fields. These results provide baseline information on the species composition and abundance of Pentatomidae in Minnesota field corn, which will be necessary for documentation of changes to this fauna as a result of the invasion of H. halys and to determine if some native species continue to increase in abundance in field crops.
File Format	HTM / HTML
ISSN	0046225X
e-ISSN	19382936
Journal	Environmental Entomology
Issue Number	2
Volume Number	44
Language	English
Publisher	Oxford University Press
Publisher Date	2015-04-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Zoology Biodiversity Food Chain Heteroptera Physiology Zea Mays Animals Growth & Development Minnesota Nymph Population Density Research Support, Non-u.s. Gov't Research Support, U.s. Gov't, Non-p.h.s.
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Insect Science

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