Farming With Friendlies
Mon Jun 29, 2015 10:40 AM CDT

Jonathan Lundgren crouches down in a South Dakota corn field at sundown. He is busy pinning Western corn rootworm larvae to the ground. As he studies his miniature captives in the growing darkness, Lundgren's mind replays a message from the past voiced by other entomologists: "There are no natural predators of the Western corn rootworm."

Using infrared light, he waits to see what fanged predators will crawl out of the lengthening shadows, attracted to the squirming bait. He doesn't have to wait long. Nocturnal carabid beetles, daddy longlegs (harvestmen) and various spiders come ...

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