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| 224.  Derived from:  Legner, E. F.  1985.  Risk categories
  of biological control organisms. 
  Proc. Calif. Mosq. & Vect. Contr. Assoc., Inc. 53:  79-82.               Assigning
  natural enemies to decreasing environmental risk categories, e.g.,
  Terrestrial vertebrates, zoopathogens, phytopathogens, phytophagous arthropods,
  terrestrial scavengers, aquatic vertebrates and invertebrates and
  arthropodophagous arthropods, may provide a realistic base for allocating
  research time to a particular group before importation.  However, the amount of research necessary
  to select the "Best" biological control candidates might be greater
  for the least environmentally hazardous categories.   Page 79     Page 80     Page 81     Page 82   | 
 
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