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Upper Midwest Stem Insect Survey
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Introduction
Results
Cohabitation
Parasitoids
Exit holes
Stem stumps
(external audio file)
Grazers vs. borers
(external audio file)
Shreddings
(external audio file)
Exit strategies
(external audio file)
Stem insects of
Ageratina altissima
(white snakeroot)
Pseudopostega
in
Agastache nepetoides
Pseudopostega
in
Blephilia hirsuta
Pseudopostega
in
Mentha
Pseudopostega
in
Monarda fistulosa
Pseudopostega
in
Lycopus
Opostegoides scioterma
in
Ribes
Biology of
Pseudopostega
species in Europe
by E. van Nieukerken
Host associations, feeding traces, larval morphology, and other observations on the life histories of culm borer flies in the genus Thrypticus (Diptera: Dolichopodidae) from the Upper Midwest, USA
Internal feeders (Diptera) in petioles and underground parts of
Viola
Browse by Hostplant
Preliminary findings from a survey of endophagous insects in plant stems and stemlike structures from the Upper Midwest, USA
(PDF)
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Page created: February 12, 2026. Last update: February 20, 2026