- Julio Bernal
- Associate Professor of Entomology
- Biological Control Laboratory
- Undergraduate Education
- B.S. Entomology/Plant Pathology, Universidad Autónoma Chapingo, Mexico
- Graduate Education
- Ph.D. Entomology, University of California, Riverside
- M.S. Entomology, University of California, Riverside
PROGRAM DESCRIPTION :
My research program (75% TAES 1998-Aug. 2005, 50% Sept. 2005-present) focuses on contributing to the theory and practice of biological control of arthropod pests in managed ecosystems. Specifically, research has focused on ecology and behavior of natural enemies and pests via field and laboratory studies.
Teaching responsibilities (25% COALS 1998-Aug. 2005, 50% Sept. 2005-present) include classroom teaching and graduate student training. Classroom teaching activities include Biology of Insects ENTO 313 (every spring since 1999, and every fall since 2005), Principles of Insect Pest Management ENTO 401 (fall 2001-2005), Principles of Biological Control ENTO 608 (every spring since 2006), and Seminar in Entomology ENTO 681 (spring 2002).
Graduate student training includes chair/co-chair of six MS and three PhD committees, member of many MS and PhD committees, in addition to off-campus PhD committees (Mexico, France).
Service activities include membership in departmental committees (e.g., Education, Use and Allocation of Physical Space, several Search Committees in Entomology and Soil & Crop Sciences), one college committee (Signature Program Team), and various panels (e.g., USDA-NRI, USDA-CAR/RAMP, Ford Foundation), Program Chair and Symposium Organizer at 2002 Joint Meeting Southwestern Branch ESA-Sociedad Mexicana de Entomología, among others.
Biology of Insects (ENTO 313), spring 1999-present; fall 2005-present
Principles of Insect Pest Management (ENTO 401), fall 2001-2005
Seminar in Entomology (ENTO 681), spring 2002
Principles of Biological Control (ENTO 608), spring 2006-present
Graduate Student Supervision
James Butler; M.S., summer 2004, Predicting boll weevil eradication induced pest outbreaks in Texas cotton, 84 pp.
Rodrigo Díaz; M.S., spring 2003, Impact of the red imported fire ant upon cotton arthropods, 57 pp.
Bradley Hopkins, M.S., fall 2005, Ecology and management of stinkbugs in Texas Gulf Coast Cotton).
Andrea Joyce, Ph.D., summer 2007, Role of acoustic communication in mating in parasitoids in the genus Cotesia, 107 pp.
Melissa Layton, Ph.D. (current), Interactions between Rhodesgrass mealybug and imported fire ant in Texas.
Refugio Lomeli-Flores, Ph.D., fall 2007, Ecology, natural enemies and management of coffee leaf miner in Chiapas, Mexico, 203 pp.
Veronica Manrique, M.S., fall 2003, Host habitat location mediated by olfactory stimuli in Anaphes iole, an egg parasitoid of Lygus hesperus, 65 pp.
Beverly Wachtel Tomov, M.S., summer 2002, Non-target effects of transgenic sugarcane on Parallorhogas pyralophagus, 48 pp.
SELECTED PUBLICATIONS (last 10 years):
Bernal, J. S. (2008). Genetically modified crops and biological control with egg parasitoids. In: F. Consoli, J. R. Parra (eds.) Egg parasitoids in agroecosystems with emphasis on Trichogramma. Elsevier BV, Amsterdam (in press)
Joyce, A. L., Hunt, R. E., Bernal, J. S., Vinson, S. B. (2008). Substrate influences mating success and transmission of courtship vibrations for the parasitoid Cotesia marginiventris. Entomol. Exp. Appl. 127, 39-47
Moya-Raygoza, G., Chacón-Torres, N., Palomera-Avalos, V., Becerra-Chiron, I., Bernal, J. (2008). Effects of corn stunt spiroplasma on survival of Dalbulus maidis (Hemiptera: Cicadellidae) parasitized or predated by Gonatopus bartletti (Hymenoptera: Dryinidae) or infected by Metarhizium anisopliae (Metschn.) SorokĪn. Ann. Entomol. Soc. Amer. 101, 113-118.
Bernal, J. S., Luck, R. F. (2007). Mate finding via a trail sex pheromone by Aphytis melinus DeBach (Hymenoptera: Aphelinidae) males. J. Insect Behav. 20, 515-525.
Ramírez Romero, R., Bernal, J. S., Chaufaux J., Kaiser, L. (2007). Impact assessment of Bt-maize on a moth parasitoid, Cotesia marginiventris (Hymenoptera: Braconidae), via host exposure to purified Cry1Ab protein or Bt-plants. Crop Prot. 26, 953-962.
Guinnee, M. A., Bernal, J. S., Bezemer, T. M., Fidgen, J. G., Hardy, I. C. W., Mayhew, P. J., Mills, N. J, West, S. A. (2005). Testing predictions of small-brood models using parasitoid wasps. Evol. Ecol. Res. 7, 779-794.
Bernal, J. S. (2004). Genetics, evolution and biological control (invited book review). Quart. Rev. Biol. 79, 420-421.
Bernal, J. S., Prasifka, J., Sétamou, M., Heinz, K. M. 2004. Transgenic insecticidal cultivars in integrated pest management: challenges and opportunities. In: O. Koul, G. S. Dhaliwal, and G. W. Cuperus (eds.), Integrated Pest Management: Potential, Constraints and Challenges. CABI, Oxfordshire, pp. 123-145 (in press).
Bernal, J. S., Sétamou, M. 2003. Fortuitous antixenosis in transgenic sugarcane: antibiosis-expressing cultivar deters oviposition by herbivore pests. Environ. Entomol. 32, 886-894.
Bernal, J. S. 2001. Handbook of biological control: principles and applications of biological control (invited book review). Q. Rev. Biol. 76, 109-110.
Bernal, J. S., Gillogly, P. O., Griset, J. 2001. Family planning in a parasitoid of stemborers: sex ratio, brood size and size-fitness relationships in Parallorhogas pyralophagus (Hymenoptera: Braconidae), and implications for biological control. Bull. Ent. Res. 91, 255-264.
Bernal, J. S., Luck, R. F., Morse, J. G., Drury, M. S. (2001). Seasonal and scale size relationships between citricola scale (Homoptera: Coccidae) and its parasitoid complex (Hymenoptera: Chalcidoidea) on San Joaquin Valley citrus. Biol. Control 20, 210-221.
Bernal, J. S., Luck, R. F., Morse, J. G. (1999). Host influences on sex ratio, longevity, and egg load in two Metaphycus species parasitic on soft scales: implications for insectary rearing. Entomol. Exp. Appl. 92, 191-204.
Bernal, J. S., Luck, R. F., Morse, J. G. (1998). Sex ratios in field populations of two parasitoids (Hymenoptera: Chalcidoidea) of Coccus hesperidum L. (Homoptera: Coccidae). Oecologia 116, 510-518.
SELECTED GRANT ACTIVITY:
Domestication and agronomic selection influences on maize defense against a specialist herbivore, National Science Foundation, Division of Environmental Biology, 2008-2010.
Importation of parasitoids of Homalodisca and other Proconiini genera from northwestern Mexico for biological control of glassy-winged sharpshooter, California Department of Food and Agriculture, 2006-2008.
Development of biological control and vegetation management tactics for glassy-winged sharpshooter management, USDA-APHIS Cooperative Agreement, 2006-2007.
Developing environmentally friendly management technologies for emerging insect pests of tequila agave. TAMU-CONACyT Collaborative Research Grant Program, 2005-2006 (with B. Vinson, TAMU).
Promoting organic coffee production in Chiapas through pest management, agronomic, and economic research. TAMU-CONACyT Collaborative Research Grant Program, 2004-2005.
The impact of Bt transgenic maize and cotton on major lepidopteran pests and non-target insects in Sub-Saharan Africa. Robert Bosch Foundation (Germany) (with M. Sétamou, ICIPE, Nairobi, Kenya, C. Borgemeister, University of Hanover, Germany.
Evaluation of parasitoids of the cotton fleahopper, Pseudatomoscelis seriatus. USDA, ARS, Cooperative Agreement, 2001-2003.
Biological control of Lygus lineolaris with egg parasitoids. USDA Cooperative Agreement, 2002-2004 (with W. Jones, USDA, ARS, Weslaco, TX).
Impacts of a transgenic insecticidal crop on parasitoid fitness and biological control performance. USDA-NRI Competitive Grants Program, 1999-2003.
Size-fitness relationships in a parasitoid wasp and implications for augmentative biological control. USDA-NRI Competitive Grants Program, 1997-1999.
SELECTED INVITATIONAL PRESENTATIONS:
Transgenic crops and parasitoids: an update and a look ahead. IOBC-NRS Symposium: Ecological Compatibility of GM Crops and Biological Control, Merida, Mexico, November, 2007.
[Prospects for biological control in the times of transgenes]. Simposio Internacional Alternativas ecológicas para el control de plagas y enfermedades agrícolas, November 2004.
Crop resistance via plant-derived transgenes and biological control via parasitoids: compatibility and promise. Symposium: Plant attribute manipulation and biological control, XV International Plant Protection Congress, Beijing, May 2004.
Effects on parasitoids of non-target, secondary pests. Symposium: Evaluating the Risk of Genetically Modified Plants to Natural Enemies: Learning from Transgenic Bt Crops, NC Branch ESA Meeting, Kansas City, March 2004.
Opportunities and risks associated with insect-resistant transgenic maize cultivars: pest management. Symposium: Insect resistant transgenic maize cultivars for Mesoamerica: need, availability, benefits, and risks. SW Branch ESA Meeting, Guanajuato, Mexico, February 2002.
Transgenic insecticidal cotton cultivars and biological control in Texas. Symposium: Role of transgenic insecticidal crops in insect pest management. Entomological Society of America National Meeting, Montreal, December 2000. (with J. Prasifka)
Training innovators for sustainable agricultural production: beneficial interactions between local knowledge and agricultural science. Lead paper, Biennial Scientific Conference, African Association of Insect Scientists, Ougadougou, Burkina Faso, July 1999.
SELECTED EDITORIAL/PEER REVIEW ACTIVITY:
Editorial Board, Agro-Ciencia (Chile), August 2005-present.
Editorial Board, International Journal of Tropical Insect Science, March 2003-present.
Editorial Board, Naturaleza y Desarrollo (Mexico), April 2004-present.
Editorial Board, Vedalia (Mexico), August 2004-present.
Editorial Board, Biopesticides International, March 2005-present
Associate Editor, The Southwestern Entomologist, April 2001-March 2005.
Panelist, USDA, National Research Initiative Competitive Grants Program, Biologically Based Pest Management, 2003.
Panelist, USDA, CAR/RAMP Competitive Grants Programs, 2007, 2008.
Panelist (Biological Sciences), Ford Foundation Predoctoral/Postdoctoral Fellowship Program, The National Academies, National Research Council, 2003-2008