By Wendy Langhans
There’s a marvelous scene in The Wizard of Oz, where atalking apple tree slaps Dorothy’s hand and then asks her in a deep, gravellyvoice, “How would you like to have someone come along and pick something off ofyou?

But trees can’t really talk, can they?  Well maybe not “talk”, but as recent studiesin California suggest, they may“communicate” with other plants.