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| 219.  Derived from:  Legner, E. F. & R. D. Sjogren.  1985. 
  Biological mosquito control:  broader
  recognition of past successes and future emphases.  Proc.Calif. Mosq. & Vector. Contr. Assoc., Inc. 52:  102-107.               Natural enemy systems that persist
  in the environment increase their effectiveness through field reproduction,
  and are able to coevolve with their hosts and thereby develop resistance to
  pesticides.  Some biotic insecticides
  are commercially available for short-term direct mosquito control.  An extended view of biological control
  likelihood should differentiate geographic areas, habitat characteristics and
  human annoyance tolerance levels. 
  Intensified studies of certain invertebrates, fungi and bacteria are
  desirable.                         Title Page                                                  References #1  #2  #3  #4   Page 102     Page 103     Page 104     Page 105     | 
 
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Please refer also to Related Research #1, #2, #3 ]