Glenn County
University of California
Glenn County

Betsy M. Karle

Photo of Betsy M. Karle
Area Dairy Advisor & County Director
Cooperative Extension Glenn County
PO Box 697, 821 E. South Street
Orland, CA 95963
(530) 865-1156 Create VCard

Also in:
Butte County
Tehama County
Shasta County
Sutter-Yuba Counties


M.S. Ecology, UC Davis. 2003
B.S. Agriculture Systems & Environment, UC Davis. 1999


Areas of Expertise (click to see all ANR academics with this expertise)


Peer Reviewed

  • Maier, G.U; Rowe, J.D., et al. (In Press). Development of a novel clinical scoring system for bovine respiratory disease in weaned dairy calves. Journal of Dairy Science.
  • Maier, G.U; Love, W.J., et al. (In Press). Management factors associated with bovine respiratory disease (BRD) in preweaned calves on California dairies: the BRD 100 study. Journal of Dairy Science.
  • Karle, Betsy M.; Maier, Gabriele U., et al. (In Press). Regional management practices and prevalence of bovine respiratory disease in California's preweaned dairy calves. Journal of Dairy Science.
  • Li, X.; Jackson, W., et al. (2019). A Cross-Sectional Study of prevalence and Species of Cryptosporidium spp. in Preweaned Calves and Associated Management Risk Factors on Dairies in Central California, USA. J Vet Med Res. 6:1, 1171-1180. January 24.
  • Miller, Christine M.; Heguy, Jennifer M., et al. (2019). Optimizing accuracy of sampling protocols to measure nutrient content of solid manure. Waste Management. 85, 121-130. 2/15/19.
  • Meyer, D.; Karle, B.M., et al. (2019). UC-industry-agency partnerships influence and help implement dairy water quality policy. California Agriculture. 73:1, 40-47.
  • Tempini, PN; Aly, SS, et al. (2018). Multidrug residues and antimicrobial resistance patterns in waste milk from dairy farms in Central California. Journal of Dairy Science. 101:9, 8110-8122. September 1, 2018.
  • Miller, Christine M.; Fadel, James G., et al. (2018). Optimizing accuracy of protocols for measuring dry matter and nutrient yield of forage crops. Science of the Total Environment. 624, 180-188. May 15, 2018.
  • Love, W. J.; Lehenbauer, T. W., et al. (2016). "Survey of management practices related to bovine respiratory disease in preweaned calves on California dairies." Journal of Dairy Science 99(2): 1483-1494.
  • Davy, J.S.; Karle, B.M., et al. (2015). "Broadleaf weed control in irrigated pasture containing Trifolium repens." Crop and Pasture Science 66: 985-991.
  • Meyer, D.; Price, P., et al. (2011). "Survey of dairy housing and manure management practices in California." Journal of Dairy Science 94: 4744-4750.
  • Harter, T.; Atwill, E.R., et al. (2008). "Developing risk models of Cryptosporidium transport in soils from vegetated, tilted soil box experiments." Journal of Environmental Quality 37: 245-258.
  • Lewis, D.J.; Atwill, E.R., et al. (2005). "Linking on-farm dairy management practices to storm-flow fecal coliform loading for California coastal watersheds." Environmental Monitoring and Assessment 107: 407-425.
  • Lile, D.; Tate, K.W., et al. (2003). "Stubble height standards for Sierra Nevada meadows can be difficult to meet." California Agriculture 57: 60-64.
  • Atwill, E.R.; Hou, L., et al. (2002). "Transport of Cryptosporidium parvum oocysts through vegetated buffer strips and estimated filtration efficiency." Applied and Environmental Microbiology 68: 5517-5527.

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