Evaluation of Exotic Parasitoids and Predators in Field Cages in California

  • Kim Hoelmer
  • William J. Roltsch
Part of the Progress in Biological Control book series (PIBC, volume 4)

Field-cage evaluations of parasitoids in the genera Eretmocerus and Encarsia from 13 different countries were conducted from 1995 to 1997 to identify effective new species or geographic populations of natural enemies of Bemisia tabaci on key host crops of whiteflies in desert valleys in the southwestern USA. Top performing species and selected populations of Eretmocerus were then compared on cantaloupe, a key crop for spring whitefly increase, and on citrus, an overwintering host. The best-performing species included Eret. emiratus and/or Eret. sp. near emiratus from the United Arab Emirates and Ethiopia, several populations of Eret. mundus, and a population of Enc. sophia from Pakistan. These species originated in regions with climates very similar to the Imperial Valley, California.


Natural Enemy Dominican Republic Geographic Population Female Parasitoid Progeny Production 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science + Business Media B.V 2008

Authors and Affiliations

  • Kim Hoelmer
    • 1
  • William J. Roltsch
    • 2
  1. 1.Beneficial Insect Introduction Research UnitUSDA-ARSNewarkUSA
  2. 2.California Department of Food & AgricultureBiological Control ProgramSacramentoUSA

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