CSU, Chico

Elizabeth "Betsy" A. Boyd

Elizabeth "Betsy" A. Boyd

Associate Professor - Plant Science

Betsy Boyd Office: Plumas 225

Campus Zip: 310

Phone: 530-898-6879

FAX: 530-898-5845

E-mail Address: eaboyd@csuchico.edu

Personal Information

Dr. Elizabeth “Betsy” A. Boyd has been a professor at the CSU, Chico College of Agriculture since 2008. Dr. Boyd obtained her BS in entomology from Washington State University (WSU) in 2000. After graduation she continued her education at WSU, where she earned an MS in entomology, majoring in biological control in 2002. Her thesis was titled “Life History and Impact Assessment of Nanophyes marmoratus Goeze on Lythrum salicaria L.”

After completing her MS, Dr. Boyd entered the doctoral degree program at University of California, Riverside, where she earned a PhD in entomology with a biological control major, integrated pest management minor, and behavior outside minor. Her dissertation was titled “Retroactive Host Specificity Testing, Biology, and Ecology of Sharpshooters (Hemiptera: Cicadellidae) and Egg-Parasitoids (Hymenoptera: Mymaridae) in California.”

Since completing her PhD, Dr. Boyd has remained active in research. She was employed by the University of California, Berkeley as a postdoctoral scholar in the K.M. Daane laboratory located at the Kearney Agricultural Research Center from June 2007 to August 2008. While there she researched vine mealybug (VMB) biological control, VMB biology and ecology, and VMB mating disruption. Her current research focus is to investigate potential management tactics that can be used in Integrated Management Programs for cropping systems throughout the world.

Dr. Boyd is a licensed California Pest Control Advisor (PCA). In high school, she studied Japanese for three years and learned to read and write Japanese hiragana, katakana, and limited kanji.


  • PSSC 160 - West Coast Crop Production
  • PSSC 340 - Economic Entomology
  • PSSC 343 - Introduction to Weed Science
  • PSSC 353 - Plant Protection Materials
  • PSSC 361 - Production of Annual Crops
  • PSSC 441 - Principles of Integrated Pest Management

Service to the College

As a professor at CSU, Chico, Dr. Boyd has been very active in the College of Agriculture. She is the academic advisor for several dozen students and additionally advises students who are pursuing their PCA license and a career in pest management. Dr. Boyd is a faculty co-advisor for Alpha Zeta and the Crops Science and Horticulture Club. She also serves as the academic senator for the College of Agriculture.

Research and Interests

Dr. Boyd’s current research projects and interests include enhancement and development of cultural management techniques for navel orangeworm (NOW) in almonds, biology of NOW, biological control, and vegetation (weeds and forage crops) management at a waste water reclamation site. She is interested in working with Japanese universities in areas of entomology and biological control and possibly teaching short courses on those subjects.

Professional Affiliations

  • Entomological Society of America (ESA), 2000–present
  • Pacific Branch of the ESA, 2000–present
  • Washington State University Alumni Association, 2000–present
  • California Association of Pest Control Advisors (CAPCA), 2009–present
  • NorCal CAPCA Chapter, 2009–present


Peer-Reviewed Publications:

Boyd, E.A., S.V. Triapitsyn, and M.S. Hoddle. 2008. Taxonomic notes on Polynema eutettexi Girault (Hymenoptera: Mymaridae) and a similar species reared as an egg parasitoid of Graphocephala atropunctata (Signoret) (Hemiptera: Cicadellidae) in California. Pan-Pacific Entomologist. 84(3): 194-199.

Percy, D.M., E.A. Boyd, and M.S. Hoddle. 2008. Observations of Acoustic Signaling in Three Sharpshooters: Homalodisca vitripennis, Homalodisca liturata, and Graphocephala atropunctata (Hemiptera: Cicadellidae). Annals of Entomological Society of America. 101(1): 253-259.

Boyd, E.A., J.E. Nay, and M.S. Hoddle. 2007. A new cage useful in standardizing biological studies of arthropods on plants. Southwestern Entomologist. 32(3): 177-180.

Boyd, E.A. and M.S. Hoddle. 2007. Host specificity testing of Gonatocerus spp. egg-parasitoids used in a classical biological control program against Homalodisca vitripennis: a retrospective analysis for non-target impacts in California. Biological Control. 43(1): 56-70.

Boyd, E.A. 2007. Retroactive host specificity testing, biology, and ecology of sharpshooters (Hemiptera: Cicadellidae) and egg-parasitoids (Hymenoptera: Mymaridae) in California. PhD Dissertation. University of California, Riverside, CA. 178 pp.

Krell, R.K., E.A. Boyd, J.E. Nay, Y.-L. Park, and T.M. Perring. 2007. Mechanical and Insect Transmission of Xylella fastidiosa to Vitis vinifera. American Journal of Enology and Viticulture. 58: 211-216.

Boyd, E.A. and M.S. Hoddle. 2006. Oviposition and flight activity of the blue-green sharpshooter on Southern California wild grape and its first reported egg parasitoids. Annals of Entomological Society of America. 99(6): 1154-1164.

Nay, J.E., E.A. Boyd, and T.M. Perring. 2006. Reduction of carob moth in ‘Deglet Noor’ dates using a bunch cleaning tool. Crop Protection. 25: 758-765.

Pilkington L.J., N.A. Irvin, E.A. Boyd, M.S. Hoddle, S.V. Triapitsyn, B.G. Carey, W.A. Jones, and  D.J.W. Morgan. 2005. Introduced parasitic wasps could control glassy-winged sharpshooter. California Agriculture. 59 (4): 223-228.

Whaley, D.K., E.A. Boyd, D.G. Johnson, and R.S. Zack. 2003. A new state record for Climacia californica Chandler (Neuroptera: Sisryidae) in Washington. Pan-Pacific Entomologist 79(3/4): 247-248.

Boyd, E.A. 2002. Life history and impact assessment of Nanophyes marmoratus Goeze on Lythrum salicaria L. in Washington state. MS Thesis. Washington State University, Pullman, WA.

Boyd, E.A. and G.L. Piper.  2002.  Outsmarting the purple foe: Battling purple loosestrife with biological control.  Agrichemical and Environmental News 192: 1-5.  Online: aenews.wsu.edu.

Non-peer-reviewed publications:

Boyd, E.A. 2009. Chico State College of Agriculture Budgets for PCA Deficit. CAPCA Advisor 12(4):34-37.

DeForest, S. and E.A. Boyd. 2009. Budgeting for a PCA Deficit: College of Agriculture Prepares Students to Fill Jobs in a High-Demand Field. The Harvest CSU-Chico, College of Agriculture Magazine 2009:8-9.

Boyd, E.A. and M.S. Hoddle. 2006. Non-Target Impact of GWSS Parasitoids, Gonatocerus ashmeadi and G. fasciatus, on Sharpshooters Native to California, with Notes on Indigenous Parasitoids of BGSS and GSS. Proceedings of the 2006 Pierce’s Disease Research Symposium, San Diego, CA, Nov.: 88-91.

Boyd, E.A. and M.S. Hoddle. 2006. Testing for non-target impacts by Gonatocerus ashmeadi and G. fasciatus on indigenous sharpshooters in Southern California. Proceedings California Conference on Biological Control, Riverside, CA, July: 125-128.

Boyd, E.A. and M.S. Hoddle. 2005. Oviposition and native parasitoids of the blue-green sharpshooter, and host specificity of Gonatocerus ashmeadi on the smoke tree and blue-green sharpshooters. Proceedings of the 2005 Pierce’s Disease Research Symposium, San Diego, CA, Dec.: 325-329.

Boyd, E.A. and M.S. Hoddle. 2005. Strategies for evaluating non-target effects in arthropod biological control. 2nd Intl. Conference on Biological Control of Arthropods, Scientific Programme, Abstracts and Participants, Davos, Switzerland, Sept.: 198.

Boyd, E.A., M.S. Hoddle, and S.V. Triapitsyn. 2004. Identification of the native parasitoid fauna associated with Graphocephala atropunctata and host specificity testing of Gonatocerus ashmeadi on Homalodisca liturata. Proceedings of the 2004 Pierce's Disease Research Symposium, Coronado, CA, Dec.: 111-114.

Boyd, E.A., M.S. Hoddle, and S.V. Triapitsyn. 2004. Oviposition preference of the blue-green sharpshooter and its first reported egg-parasitoids in southern California on wild grape. Proceedings California Conference on Biological Control, Berkeley, CA, July: 95-99.