Preparing for the Fall Flight of Allium Leafminer
Ethan Grundberg, Vegetable Specialist
Eastern New York Commercial Horticulture
The invasive fly pest, allium leafminer (Phytomyza gymnostoma), has been established in the Northeast since 2016 and has caused crop damage as far north as Washington County, NY, as far east as central Connecticut, and as far west as the Finger Lakes region of NY. In research trials, the fall flight has caused damage to over 98% of leeks that were not covered or managed with insecticides.
Preparing for the Fall Flight of Allium Leafminer (pdf; 308KB)
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