Distribution of an exotic pest, Agromyza frontella (Diptera: Agromyzidae), in Manitoba, Canada

J. G. Lundgren, R. C. Venette, J. Gavloski, William D Hutchison, George E Heimpel

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Agromyza frontella is an exotic alfalfa pest from Europe that was first detected in North America in 1968 and has since spread westward into Ontario and the north central United States. Informal surveys had detected A. frontella in Manitoba, but its distribution throughout this province was unknown. In 1998 we collected alfalfa stems to detect plant damage and sweep samples to detect adult A. frontella and the parasitoid Dacnusa dryas throughout the alfalfa growing region of Manitoba. In south central Manitoba, 100% of stems were damaged by A. frontella, and > 100 adults/10 sweeps were recorded at several sites. In west central Manitoba, no plants were damaged and < 10 adults/10 sweeps were observed. We believe this region to be near the western edge of A. frontella distribution. The most important introduced parasitoid of A. frontella, D. dryas, was not detected which suggests that D. dryas has not invaded Manitoba.

Original languageEnglish (US)
Pages (from-to)177-184
Number of pages8
JournalGreat Lakes Entomologist
Volume32
Issue number3
StatePublished - Sep 1 1999

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Agromyza frontella
Agromyzidae
Manitoba
alfalfa
Canada
pests
parasitoid
Dryas (Rosaceae)
Dacnusa
stem
damage
stems
Midwestern United States
plant damage
Ontario
distribution
pest

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Distribution of an exotic pest, Agromyza frontella (Diptera : Agromyzidae), in Manitoba, Canada. / Lundgren, J. G.; Venette, R. C.; Gavloski, J.; Hutchison, William D; Heimpel, George E.

In: Great Lakes Entomologist, Vol. 32, No. 3, 01.09.1999, p. 177-184.

Research output: Contribution to journalArticle

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