Sudan Gyawaly

Integrated Pest Management Advisor
Cooperative Extension Butte County
5 County Center Drive
Oroville, CA 95965
(530) 538-7201 Create VCard


Sudan Gyawaly is an applied entomologist with several years of experience in agricultural pest management. Sudan joined UCCE as an Associate Specialist in June 2020. Prior to joining UCCE, Sudan has worked as a post-doctoral research associate at North Carolina Agricultural and Technical State University, Greensboro, NC. As a post-doctoral research associate, his research was focused on developing pest management practices for pests of fruits and vegetables in organic systems.

Sudan received his MS degree in entomology from West Virginia University, Morgantown, WV and PhD degree from Virginia Tech, Blacksburg, VA. His graduate studies involved research on developing mass rearing techniques for insects including insect natural enemy and developing pest management techniques for white grubs, the larvae of scarab beetles, in turfgrass systems. Sudan enjoys working with growers and all his work, as a graduate student and as a post-doctoral researcher, has involved working closely with growers.


Ph.D. Entomology, Virginia Tech. 2016




Peer Reviewed

  • Gyawaly, S., J. P. Rijal, and S. V. Joseph. 2021. Bagrada hilaris (painted bug) In CABI invasive species compendium. CAB International.

  • Rijal, J. P., A. Joyce, and S. Gyawaly. 2021. Biology, ecology, and management of hemipteran pests in almonds orchard Systems in the United States. Journal of Integrated Pest Management. 12: 24.

  • Rijal, J. P., C. Burks, and S. Gyawaly. 2020. Exploring navel orangeworm monitoring tools for almond orchards under mating disruption. CAPCA Adviser Magazine (December issue). 4pp.

  • Vorsah, R. V., B. N. Dingha, S. Gyawaly, S. A. Fremah, H. Sharma, A. Bhowmik, M. Worku, and L. E. Jackai. 2020. Organic mulch increases herbivory by the flea beetle species, Disonycha glabrata, on Amaranthus. Insects. 11: 3.

  • Ewunkem, A. J., H. O. Sintim, B. N. Dingha, S. Gyawaly, and L. E. Jackai. 2020. Nutritional ecology of the Southern Green Stink Bug Nezara viridula (Hemiptera: Pentatomidae) on selected varieties of cowpea and tomato. American Journal of Entomology 4: 1-9.

  • Rijal, J. P., R. Regmi, R. Ghimire, K. D. Puri, S. Gyawaly, and S. Poudel. 2018. Farmers’ knowledge on pesticide safety and pest management practices: A case study of vegetable growers in Chitwan, Nepal. Agriculture 8: 16.

  • Rijal, J., and S. Gyawaly. 2018. Characterizing brown marmorated stink bug injury in Almond, a new host crop in California. Insects 9: 126.

  • Youngman, R. R., T. Kuhar, S. Gyawaly, C. Laub, S. Wu. 2017. Turfgrass insect management.  Virginia Turfgrass Certification Manual 2017. Virginia Cooperative Extension Publication. 

  • Laub, C., S. Gyawaly, and T. Kuhar. 2016. Virginia turfgrass insect management survey. Virginia Cooperative Extension Publication. ENTO-219NP.

  • Gyawaly, S., A. M. Koppenhöfer, S. Wu and T. P. Kuhar. 2016. Biology, ecology, and management of masked chafer grubs in turfgrass. Journal of Integrated Pest Management 7: 1–11.

  • Gyawaly, S., R. R. Youngman, C. A. Laub, and T. P. Kuhar. 2014. Evaluation of insecticide application timings against white grubs in cool season turfgrass in Virginia, 2013. Arthropod Management Tests. 39: G10.

  • Gyawaly, S., and Y. L. Park. 2013. Feeding potential and prey acceptance of Podisus maculiventris (Hemiptera: Pentatomidae): implications for biological pest control. Journal of Plant Biology and Soil Health 2: 1–5.

  • Gyawaly, S., C. Laub, and R. R. Youngman. 2012. Sugarcane beetle in corn. Va. Coop. Ext. pub. ENTO-13NP

Non-Peer Reviewed

  • Gyawaly, S., and J. P. Rijal. 2021. Neem insecticides as oviposition deterrents against spotted wing drosophila in cherries. CAPCA Adviser Magazine. 4pp.

  • Rijal, J. P., and S. Gyawaly. 2021. Insecticide options for navel orangeworm IPM in almonds—a recent trial summary. The Scoop (October issue). 3pp.

  • Rijal, J. P., and S. Gyawaly. 2021. Spring season pest monitoring activities in almond orchards. West Coast Nuts (February issue). 4pp.

  • Gyawaly, S., C. A. Laub, and T. P. Kuhar. 2016. Effects of common turfgrass insecticides on the earthworms. Virginia Turfgrass Journal. 3 pp.

  • Gyawaly, S., C. A. Laub, and T. P. Kuhar. 2015. Can combinations of insecticides and entomopathogenic fungi do the job on hard-to-kill large white grubs? Virginia Turfgrass Journal. 3 pp.

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