(Memphis 6/1/2010) A mystery is unfolding across MidSouth farms. Something is killing crops, trees, even weeds and nobody can explain why. Farmers are scratching their heads and some are worried their crops may be lost to the mysterious plague. It's happening along a large swath of land near the Shelby and Tipton county border along Herring Hill Road and elsewhere near the Mississippi River bottoms. Tiny dots appear to have burned onto leaves of all types of plants, and they appear different depending on the plant. On corn stalks, the dots seem to turn white in the center. On other...