Citrus growers import wasp to fight disease threatening groves
Sunday, August 4, 2013 - 08:00
in Biology & Nature
California citrus farmers import a parasitic wasp from Pakistan to battle citrus greening, a disease threatening their groves.Pesticides haven't worked. Quarantines have been useless. Now California citrus farmers have hired an assassin to knock off the intruder threatening their orchards.