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Amauromyza karli adult

Closeup image of a fly on a solid medium gray background. The fly's body is dark brownish-black in color, while its head and hind wing stubs (halteres) are yellow, as well as the joints linking leg segments. Its wings, extended vertically above the fly, are transparent with light brown veins.

Quinoa’s emergence as an attractive, climate-resilient crop in the U.S. has been met with a fresh challenge from a stem-boring fly species, Amauromyza karli, previously known in Canada. While research is scant on this new pest, a new profile in the Journal of Integrated Pest Management outlines what we know—and what we need to find out—about reducing its impact on quinoa. As shown here, adult Amauromyza karli flies have dark brown bodies, bright yellow heads, and bright yellow hind wings, which are reduced in all flies (marked with an arrow). The joints linking their leg segments are yellow as well. (Photo courtesy of Ada Szczepaniec, Ph.D.)

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