Office: 73 Briggs Hall Lab: 78 Briggs Hall Phone: (530) 752-0473 Email: ldgodfrey@ucdavis.edu Fax: (530) 752-1537

Larry D. Godfrey, Ph.D.    Extension Entomologist Prof. Godfrey's Lab Research Education: B.S., Purdue University M.S., Purdue University Ph.D., University of Kentucky Appointment: 30% Organized Research 70% Cooperative Extension Research Interests: Integrated pest management of insects and mites in field and vegetable crops; plant (physiological and yield) response to insect injury, refinement of economic thresholds, IPM of field and vegetable crops. Go to http://www.ipm.ucdavis.edu for pest management information for agricultural crops, homes, gardens, and landscapes.

Selected Publications:

1. Cisneros, J. J. and L. D. Godfrey. 2001. Midseason pest status of the cotton aphid (Homoptera: Aphididae) in California cotton: is nitrogen a key factor? Environmental Entomology 30:501-510.
2. Godfrey, L. D. and K. J. Fuson. 2001. Environmental and host plant effects on insecticide susceptibility of the cotton aphid (Homoptera: Aphididae) Journal of Cotton Science 5:22-29.
3. Natwick, E. T., C. G. Summers, C. C. Chu, T. J. Henneberry, C. E. Bell, and L. D. Godfrey. 2000. Bemisia argentifolii hosts in Imperial and southern San Joaquin Valleys, California Southwestern Entomologist 25:243-254.
4. Godfrey, L. D., J. A. Rosenheim, and P. B. Goodell. 2000. Management of a newly-emerged cotton pest: the cotton aphid in the San Joaquin Valley California Agriculture 54:26-29.
5. Ellsworth, P. C., R. Tronstad, J. Leser, P. Goodell, L. D. Godfrey, T. J. Henneberry, D. Hendrix, D. Brushwood, S. E. Naranjo, S. Castle, and R. L. Nichols. 1999. Sticky Cotton Sources & Solutions Univ. of Arizona, IPM Series No. 13 4 pp.
6. Barlow, V. M., L. D. Godfrey, and R. F. Norris. 1999. Population dynamics of Lygus hesperus (Heteroptera: Miridae) on selected weeds in comparison with alfalfa Journal of Economic Entomology. 92: 846-852.
7. Godfrey, L. D. and C. Pickel. 1998. Seasonal dynamics and management schemes for a subterranean mealybug, Rhizoecus knodonis Kuwana, pest of alfalfa Southwestern Entomologist 23:343-350.
8. Goodell, P. B., L. D. Godfrey, and R. N. Vargas (Technical Coordinators). 1998. Integrated Pest Management for Cotton in the Western Region of the United States. Second Edition Univ. of California, Div. of Agric. and Natural Resources Publ. 3305 164 pp.
9. Limburg, D. D., P. A. Mauk, and L. D. Godfrey. 1997. Characteristics of beet yellows closterovirus transmission to sugar beets by Aphis fabae Phytopathology. 87:766-771.
10. Weber, C. A., L. D. Godfrey, and P. A. Mauk. 1996. Effects of parasitism by Lysiphlebus testaceipes (Hymenoptera: Aphididae) on transmission of beet yellows closterovirus by bean aphid (Homoptera: Aphidae) Journal of Economic Entomology 89:1431-1437.