Parasitic Weed Seems to Smell Its PreySeptember 29, 2006 in /
(AP) -- The parasitic dodder plant doesn't have a nose, but it knows how to sniff out its prey. The dodder attacks such plants as tomatoes, carrots, onions, citrus trees, cranberries, alfalfa and even flowers, and is a problem for farmers because chemicals that kill the pesky weed also damage the crops it feeds on.
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"Parasitic Weed Seems to Smell Its Prey" September 29, 2006 http://phys.org/news/2006-09-parasitic-weed-prey.html