Wednesday, October 1, 2014

Scoliid Wasps on Goldenrod

While touring New Moon Nursery I couldn't help but notice the alarming amount of Scoliid Wasps on their Goldenrod. I believe this is the cultivar 'Fireworks' but these are only plugs so they're not really representative of the adult plants. But even in flats, you can see a lot of these plants still try to flower.

Scoliid Wasps are parasites of beetle larva, including the nonnative Japanese Beetle. The adult form though is a pollinator that's fond of generalist composites and mint. Goldenrod, Aster, Mints and a few others are all good at attracting them to your yard. And because the larval stage consumes beetle larva they're beneficial to lawn health too.

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