January 7, 2009
Ladybugs a sign of healthy olive trees
Spanish researchers say ladybugs in olive orchards are a good indicator of the groves' health and sustainability.
The University of Granada found that ladybugs are a useful way of distinguishing organic, conventional and integrated farming systems.
The university said a two-year study of three large Spanish olive groves showed the
richness and abundance of ladybugs was higher in organic orchards.