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Life-History and Habits of the Sunflower Maggot, Strauzia longipennis (Wied.) (Diptera: Trypetidae), in Manitoba1
Published online by Cambridge University Press: 31 May 2012
Extract
The sunflower maggot is native to North America. It has been recorded from Maine and New Brunswick through Quebec to Alberta and California and as far south as New Mexico and Florida. It was collected by Criddle at Aweme, near Treesbank, Manitoba, in 1905 and is known to have been present in cultivated sunflowers in southern Manitoba since 1944. Heavy infestations have occurred since 1948.
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