William J. Roltsch, Ph.D.:
California Department of Food & Agriculture
Biological Control Program
4151 Hwy. 86
Brawley, CA 92227
760 351-0324
760 344-7951
e-mail: wroltsch@cdfa.ca.gov

Current Research Activities:
  • Silverleaf whitefly biological control - Long term monitoring to document success of established Eretmocerus and Encarsia species, and field interactions among these non-autoparasitic and autoparasite species. Assess the use of perennial plant refuges for natural enemy conservation.
  • Pink hibiscus mealybug biological control - Rear, release and monitor parasitoids of the pink hibiscus mealybug.

For additional information on the projects above please contact me or leave a message.

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