Publications

Below are publications affiliated with the Seed Potato Pathology Research & Extension Program at the University of Idaho - Idaho Falls Research & Extension Center. Many of the publications below are available online. To access, click on the underlined text. If you are not able to access a publication, you may request a copy via email from Kasia Duellman, kduellman@uidaho.edu.

Aberdeen Potato IPM Field day books

2023 Aberdeen Potato IPM Field Day Book

2024 Aberdeen Potato IPM Field Day Book

2025 Aberdeen Potato IPM Field Day Book

Extension Bulletins:

Necrotic potato tuber symptoms caused by strains of Potato virus Y. University of Idaho Extension, BUL 1086.

Common scab of potato. University of Idaho Extension, BUL 1074.

Impact of freezing temperatures on potato tubers. University of Idaho Extension, BUL 1073.

On-farm management of cull potatoes. University of Idaho, CIS 814, updated and revised.

IPM Pest Profiles: Integrated Pest Management of Fusarium Dry Rot in Potato. University of Idaho Extension, BUL 1052.

Help protect the famous Idaho potato: Watch for late blight in your home garden. University of Idaho Extension BUL 1022.

Powdery scab of potato. University of Idaho Extension BUL 1024.

Managing bacterial ring rot of potato. University of Idaho Extension BUL 1021.

Potato Mop Top Virus: Biology and Disease Management. University of Idaho Extension BUL 1017.

Potato seed certification and selection in Idaho. University of Idaho Extension BUL 983.

Plant Disease Management Reports:

Duellman, K.M., Lent, M.A., and McKinney, L.F. 2024. Evaluation of fungicide seed treatments to manage Fusarium seed decay of potato in Idaho, 2023. Plant Disease Management Reports 18:ST001. https://www.plantmanagementnetwork.org/pub/trial/PDMR/volume18/ 

Duellman, K.M., Lent, M.A., and McKinney, L.F. 2024. Evaluation of seed treatment and in-furrow fungicides to manage Rhizoctonia canker and black scurf of potato in Idaho, 2023. Plant Disease Management Reports 18:V018. https://www.plantmanagementnetwork.org/pub/trial/PDMR/volume18/ 

Miller, J.S., Taysom, T.W., Miller, T.D., Chandler, K., Suarez, C., Anderson, D.S., Duellman, K., and Christian, C. 2023. Effect of potato seed piece treatments against Fusarium dry rot, 2022. Plant Disease Management Reports 17:ST009. Online publication. https://www.plantmanagementnetwork.org/pub/trial/PDMR/volume17/ 

Duellman, K.M. and Lent, M.A. 2023. Efficacy of potato fungicide seed treatments to manage Fusarium seed decay, Bingham County, ID, 2022. Plant Disease Management Reports 17:ST008. https://www.plantmanagementnetwork.org/pub/trial/PDMR/volume17/ 

Miller, J., Taysom, T.W., Miller, T.D., Suarez, C., Anderson, D.S., Duellman, K., and Christian, C. 2022. Effect of seed piece treatments against Fusarium dry rot, 2021. Plant Disease Management Reports 16:V133. https://doi.org/10.1094/PDMR16 

Duellman, K., and Lent, M. 2022. Efficacy of potato fungicide seed treatments to manage Fusarium seed decay, Bingham County, ID, 2021. Plant Disease Management Reports 16:V124. https://doi.org/10.1094/PDMR16  

Duellman, K., and Lent, M. 2022. Fungicide seed treatment efficacy for managing Rhizoctonia diseases on potato, Bingham County, ID, 2021. Plant Disease Management Reports 16:V123. https://doi.org/10.1094/PDMR16 

Duellman, K., and Lent, M. 2021. Efficacy of fungicide seed potato treatments to reduce Fusarium seed piece decay, Bingham County, ID, 2020. Plant Disease Management Reports 15:V039. https://doi.org/10.1094/PDMR15 

Duellman, K., and Lent, M. 2021. Efficacy of seed and in-furrow fungicide treatments for suppressing Rhizoctonia canker and black scurf on potato, Bingham County, ID, 2020. Plant Disease Management Reports 15:V038. https://doi.org/10.1094/PDMR15  

Duellman, K., Bertram, M., and Lent, M. 2021. Efficacy of seed and in-furrow fungicide treatments for suppressing Rhizoctonia canker and black scurf on potato, Bingham County, ID, 2019. Plant Disease Management Reports 15:V004. https://doi.org/10.1094/PDMR15  

Duellman, K., Bertram, M., and Lent, M. 2020. Use of fungicide seed and in-furrow fungicide treatments to suppress Rhizoctonia canker and black scurf on potato, Bingham County, ID, 2018. Plant Disease Management Reports 14:V186. https://doi.org/10.1094/PDMR14  

Duellman, K., Bertram, M., and Lent, M. 2020. Efficacy of chemicals in suppressing Rhizoctonia canker and black scurf on potato, Bingham County, ID, 2017. Plant Disease Management Reports 14:V185. https://doi.org/10.1094/PDMR14  

Duellman, K., Lent, M., and Bertram, M. 2020. Efficacy of fungicide seed potato treatments to reduce Fusarium seed piece decay and Rhizoctonia canker, Bingham County, ID, 2019. Plant Disease Management Reports 14:V184. https://doi.org/10.1094/PDMR14  

Duellman, K., Bertram, M., and Lent, M. 2019. Efficacy of various products against Fusarium dry rot and seed piece decay, Bingham County, ID, 2018. Plant Disease Management Reports 13:V136. https://doi.org/10.1094/PDMR13  

Duellman, K., Lent, M., and Bertram, M. 2018. Efficacy of chemicals against Fusarium dry rot and seed piece decay, Bingham County, ID, 2017. Plant Disease Management Reports 12:ST006. https://doi.org/10.1094/PDMR12 

Duellman, K., Bertram M., and Lent, M. 2017. Efficacy of chemicals against Fusarium dry rot and seed piece decay, Bingham County, ID, 2016. Plant Disease Management Reports 11:V138. https://doi.org/10.1094/PDMR11  

Duellman, K., Betram, M., and Lent, M. 2017. Efficacy of chemicals in suppressing soil-borne Rhizoctonia stem canker and black scurf on potato, Bingham County, ID, 2016. Plant Disease Management Reports 11:V126. https://doi.org/10.1094/PDMR11  

Selected Journal Publications (*corresponding author; †mentee):

Christian†, C.L., and Duellman, K.M.* Accepted 2 December 2025, in press. Relative Aggressiveness of Fusarium Dry Rot Pathogens on Seven Potato Varieties. American Journal of Potato Research.

Christian†, C.L., Rosnow, J., Woodhall, J.W., Wharton, P.S., and Duellman*, K.M. 2025. Pathogenicity of Fusarium species associated with potato dry rot in the Pacific Northwest of the United States. Plant Disease 109:1091-1101. https://doi.org/10.1094/PDIS-10-24-2136-RE  

Duellman, K.M.*, Whitworth, J., Lent, M.A., Bertram, M.C., and Randall, J.C. 2022. Mechanical transmission of Potato virus Y by seed cutting is not a contributing factor to increased virus in field production. Plant Health Progress 23:381-387. https://doi.org/10.1094/PHP-02-22-0011-RS 

Woodhall, J.W. Brown, L., Harrington, M., Murdock, M., Pizolotto, C.A., Wharton, P.S., and Duellman, K. 2022. Anastomosis groups of Rhizoctonia solani and binucleate Rhizoctonia associated with potatoes in Idaho. Plant Disease 106:3127-3132. https://doi.org/10.1094/PDIS-12-21-2683-RE

Duellman, K.M.*, Price, W.J., Lent, M.A., Christian, C.L†., Bertram, M.C., and Nolte, P. 2021. Fungicide Seed Treatment Improves Performance of Single-Drop Whole and Cut Seed Potatoes. American Journal of Potato Research 98:315-327. https://doi.org/10.1007/s12230-021-09845-0 

Duellman, K.M.*, Lent, M.A., Brown, L., Harrington, S., and Woodhall, J.W. 2021. First report of rubbery rot of potato caused by Geotrichum candidum in the United States. Plant Disease 105:1206. https://doi.org/10.1094/PDIS-08-20-1815-PDN 

Woodhall, J.W., Brown, L., Harrington, M., Olsen, N., Miller, J. and Duellman, K.M.* 2020. Sclerotinia sclerotiorum causes decay and forms sclerotia in potato tubers in Idaho. Plant Health Progress 21:335-337. https://doi.org/10.1094/PHP-04-20-0032-RS 

Whitworth, J., Selstedt, R.A., Westra, A., Nolte, P., Duellman, K.M., Yellareddygari, S.K.R., and Gudmestad, N.C. 2019. Symptom expression of mainstream and specialty potato cultivars to bacterial ring rot (Clavibacter michinganensis subsp. sepedonicus) and evaluation of in-field detection. American Journal of Potato Research 96:427-444. https://doi.org/10.1007/s12230-019-09730-x 

Murdock, M.R., Woodhall, J.W., Maggard, R., Keith, S., Harrington, M., Oropeza, A., Stokes, B., Duellman, K.M.* 2019. First report of Rhizoctonia solani AG 2-1 causing stem canker of potato (Solanum tuberosum) in Idaho. Plant Disease 103:2130. https://doi.org/10.1094/PDIS-02-19-0364-PDN