Geary, Bradley

Plant & Wildlife Sciences

Email: 2dtcfaigct{Bd{w0gfw  (Email Form)

4123  LSB
Provo, UT 84602
(801) 422-2369

Professor

Curriculum Vitae

 Courses Taught

Fall 2016
  • PWS 431: Plant Health Diagnostics Section 001
  • PWS 494R: Mentored Learning Experience Section 004
  • PWS 699R: Master's Thesis Section 004
Summer 2016
  • PWS 494R: Mentored Learning Experience Section 005
  • PWS 699R: Master's Thesis Section 009
Spring 2016
  • PWS 494R: Mentored Learning Experience Section 007
Winter 2016
  • PDBIO 120: Science of Biology Section 003
  • PDBIO 349R: PDBio Teaching Seminar Section 008
  • PWS 331: Sci of Plant Pest Control Section 001
  • PWS 494R: Mentored Learning Experience Section 001
  • PWS 699R: Master's Thesis Section 005

Selected Publications

Journal Articles

Miller J, Hamm P, Dung J, Geary BD, James S, Johnson D, Rykbost K. 2015. Influence of location, year, potato rotation, and chemical seed treatment on incidence and severity of silver scurf on progeny tubers. American Journal of Potato Research. 92:62-70.  doi:10.1007/s12230-014-9412-x

Franke J, Geary BD, Meyer S. 2014. Identification of the infection route of a Fusarium seed pathogen into nondormant Bromus tectorum seeds. Phytopathology. 104:1306-1313.

Meyer S, Franke J, Baughman OW, Beckstead J, Geary BD. 2014. Does Fusarium-caused seed mortality contribute to Bromus tectorum stand failure. Weed Science. 54:511-519.

Kudalkar P, Strobel GA, Riyaz-Ul-Hassan S, Geary BD, Sears J. 2012. Muscodor sutura, a novel endophytic fungus with volatile antibiotic activities. Mycoscience. 53:319-325. <website>

Miller JS, Hamm PB, Olsen N, Geary BD, Johnson DA. 2011. Effect of post-harvest fungicides and disinfectants on the suppression of silver scurf on potatoes in storage. Am J Pot Res. 88:413-423. <website>

Strobel GA, Singh SK, Riyaz-Ul-Hassan S, Mitchell AM, Geary BD, Sears J. 2011. An endophytic/pathogenic Phoma sp from creosote bush producing biologically active volatile compounds having fuel potential. FEMSLE. 320:87-94. <website>

Booth E, Strobel GA, Knighton B, Sears J, Geary BD, Avci R. 2011. A rapid column technique for trapping and collecting of volatile fungal hydrocarbons and hydrocarbon derivatives. Biotechnol Lett. 33:1963-1972. <website>

Stevens MR, Geary BD, Dockter RB, Dockter KG, Broderick SR, Daley SL, Love SL. 2011. Identifying germplasm for breeding native Intermountain drought tolerant flowers. Report of the Intermountain Native Plants Cooperative. 2:44-48. <website>

Sanjay SK, Strobel GA, Knighton B, Geary BD, Sears J, Ezra D. 2011. An endophytic Phomopsis sp. possessing bioactivity and fuel potential with its volatile organic compounds. Microb Ecol. 61:729-739. <website>

Broderick SR, Stevens MR, Geary BD, Love SL, Jellen EN, Dockter RB, Dailey SL, Lindgren DT. 2011. A survey of Penstemon’s genome size. Genome. 54(2):160-173.

Vargas A, Elzinga DB, Rojas-Beltran JA, Bonifacio A, Geary BD, Stevens MR, Jellen EN, Maughan PJ. 2011. Development and use of microsatellite markers for genetic diversity analysis of cañahua (Chenopodium pallidicaule Aellen). Genetic Resources and Crop Evolution. 58:727-739. <website>

Banerjee D, Strobel GA, Booth E, Geary BD, Sears J, Spakowicz D, Bussee S. 2011. An endophytic Myrothecium inundatum producing volatile organic compounds. Mycosphere. 1:229-240.

Spratling TL, Perry DL, Dix WM, Hardy GH, Hopkins BG, Geary BD. 2010. An Ounce of Prevention: Take-all Disease and Soil pH. Mountain West Turf. 9(4):22-25.

Stevens MR, Geary BD, Broderick SR, Ewell BJ, Dockter RB, Mendenhall MA, Daley SL, Daley JD, Mock TJ, Love SL. 2010. Understanding Penstemon diversity in an effort to initiate a breeding program within the genus for urban landscapes of the Intermountain West. Report of the Intermountain Native Plants Cooperative. 1:18-20. <website>

Benson JH, Geary B, Miller JS, Hopkins BG, Jolley VD, Stevens MR. 2009. Phytophthora erythroseptica (Pink rot) development in Russet Norkotah potato grown in buffered hydropinc solutions I. Calcium nutrition effects. American Journal of Potato Research. 86:466-471. <website>

Benson JH, Geary B, Miller JS, Hopkins BG, Jolley VD, Stevens MR. 2009. Phytophthora erythroseptica (Pink Rot) development in Russet Norkotah potato grown in buffered hydroponic solutions II. pH effects. American Journal of Potato Research. 86:472-475. <website>

Lee SJ, Strobel GA, Eisenman K, Geary B, Vargas PN, Strobel SA. 2009. Aurosphaeria, a novel coelomycetous genus. Mycotaxon. 107:463-472.

Geary B, Ransom C, Brown B, Atkinson D, Hafez S. 2008. Weed, disease, and nematode management in onion with biofumigants and metam sodium. Horticuluture Technology (HortTechnology). 18:569-574.

Gordillo LF, Stevens MR, Miller MA, Geary B. 2008. Screening two Lycopersicon peruvianum collections for resistance to toomato spotted wilt virus. Plant Disease. 92:694-704.

Brown BD, Geary B, Gibson RC, Morra MJ. 2008. Biofumigant biomass, nutrient content, and glucosinolate response to phosphorus. Journal of Plant Nutrition. 31:743-757.

Hopkins BG, Horneck DA, Pavek MJ, Geary BD, Olsen NL, Ellsworth JW, Newberry GD, Miller JS, Thornton RE, Harding GW. 2007. Potato Production Best Management Practices. American Journal of Potato Research.

Geary B, Johnson DA, Hamm PB, James S, Rykbost KA. 2007. Potato Silver Scurf Affected by Locations and Tuber Seed Treatments, and Occurrence of Thiabendazole and Thiophanate-methyl Resistant isolates of Helminthosporium solani in Washington and Oregon. Plant Disease.

Geary B, Johnson DA. 2006. Relationship Between Silver Scurf Levels on Seed and Progeny Tubers from Successive Generations of Potato Seed. American J. Potato Research.

Abstract

Black B, Hopkins BG, Geary BD. 2014. Creeping Bentgrass Nitrogen and Brown Patch Interactions. ASA, CSSSA, and SSSA International Annual Meeting Abstracts. <website>

Gneck J, Geary BD, Johnson DA, Hopkins BG, Jolley VD. 2011. Influence of Differing Phosphorus Levels on Infection Severity of Collectotrichum coccodes in Russet Burbank Potato Roots. American Journal of Potato Research. 88:39.

Gneck JJ, Geary BD, Johnson DA, Hopkins BG, Jolley VD. 2010. Influence of differing phosphorus levels on infection severity of Colletotrichum coccodes in russet Burbank potato roots. Potato Association of america.

Washburn JD, Geary BD, Kearns MJ, Stevens MR. 2010. Alyssum flower mutagenesis: Ornamental crop improvement. HortScience. 45(8):S87. <website>

Geary BD, Morton J, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. 2010. Adequate and High Nitrogen Represses Infection Severity of Colletotrichum coccodes in Russet Burbank Potato Roots. American Journal of Potato Research. 87(1):124. <website>

Geary BD, Benson J, Hopkins BG, Jolley VD, Miller JS, Stevens MR. 2010. Low pH and Calcium Levels Increase Infection Severity of Phytophthora erythroseptica in Russet Norkotah Potato Roots. American Journal of Potato Research. 87(1):124. <website>

Beckett TJ, Pletsch M, Hopkins BG, Shiffler AK, Hutchinson PJ, Geary B, Horneck D, Olsen NO, Hafez S, Thornton M, et al. 2009. Reducing pesticides and increasing potato by increasing time between potato crops. ASA-CSSA-SSSA Annual Meeting.

Geary B, Morton J, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. 2009. Adequate and high nitrogen represses infection severity of Colletotrichum coccodes in Russet Burbank potato roots. Potato Association of America 93rd Annual Meeting.

Blaisdell B, Geary B, Morton J, Kearns M, Johnson DA, Hopkins BG, Jolley VD. 2009. Available nitrogen levels influence Colletotorichum coccodes infection severity of Russet Burbank potato roots. Phytopathology. 99.

Vargas A, Geary B, Stevens M, Bonifacio A, Fairbanks D, Maughan J, Jellen E, Coleman C. 2009. Vargas, A., Geary, B., Stevens, M., Bonifacio, A., Fairbanks, D., Maughan, J., Jellen, E., and Coleman, C. Phytopathology. 99.

Dockter RB, Broderick SR, Daley JD, Daley SL, Mendenhall MA, Ewell BJ, Geary B, Stevens MR. 2009. Early phenotypic mutation results induced by ethyl methyl sulfonate (EMS) on species of Penstemon. Horticulture Science. 44:1123.

Kearns MJ, Geary B, Song E, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. 2009. Infection severity of Colletotorichum coccodes in Russet Burbank potatoes with respect to environmental potassium. Phytopathology. 99.

Geary B, Benson J, Hopkins BG, Jolley VD, Miller JS, Stevens MR. 2009. Low pH and calcium levels increase infection severity of Pythophthora erythroseptica in Russet Norkotah potato roots. Potato Association of America 93rd Annual Meeting.

Broderick SR, Dockter RB, Mendenhall MA, Daley JD, Daley SL, Ewell BJ, Mock TJ, Love S, Geary B, Stevens MR. 2009. Utilizing flow cytometry for quantitative estimations of nuclear DNA in over 50 Penstemon species. Horticulture Science. 44:1053.

Vargas A, Rojas-Beltran JA, Adhikary D, Horihuela G, Maughan PJ, Jellen EN, Stevens MR, Geary B. 2009. Microsatellite marker development in Ca?ahua (Chenopodium pallidicaule). Plant and Animal Genomes XVII Conference. p-128.

Chambers A, Geary B, Black S, Candelaria N. 2007. Confirmation of Artificial Endophyte Inoculation in Maize (Zea mays) and Tomato (Lycopersicon esculentum) by Scanning Electron Microscopy and PCR Amplification of ITS Sequences. Phytopathology. 97:s19.

Eldredge SD, Geary B, Jensen S. 2007. Field and Greenhouse Trials Relating Complex Soil Environments with Accelerated Germ Responses of Astragalus utahensis to Alternaria and Aspergillus fungi. Phytopathology. 97:s32.

Benson J, Geary B, Hopkins BG, Jolley VD, Miller RJ. 2007. Influence of pH on Infection of Phytophthora erythroseptica on Solanum tuberosum. Phytopathology. 97:s10.

Kitz L, Hooper JR, Stevens MR, Geary B. 2007. Visualization of Peronospora farinosa infection and growth in quinoa using scanning electron microscopy. Phytopathology. 97:s57.

Kitz L, Swenson EM, Geary B, Bonifacio A, Plata G, Stevens MR. 2007. Evidence of Genetic Diversity Among Isolates of Peronospora farinose f. sp. chenopodii Using AFLP Analysis. Plant and Animal Genomes XV Conference.

Stevens MR, Swenson EM, Geary B, Bonifacio A, Plata G, Maughan PJ, Jellen EN, Coleman CE, Kitz L, Cobb J, et al. 2007. Studies on Quinoa Downy Mildew (Peronospora farinosa) Host Resistance and Pathogen Diversity in Bolivia. Quinoa Congress.

Beck D, Thornton M, Geary B. 2006. Factors Influencing Development of Neck Rot in Stored Onions. National Allium Research Conference.

Eldredge S, Geary B, Gardner J, Jensen S. 2006. Viability of an accelerated germ response of fungal inoculated Astragalus utahensis seed in soil. 51st Annual Meeting of the Agronomy - Soil - Crop Science Society of America.

Chambers AH, Benson J, Geary B. 2006. AFLP Genetic Analysis of Eleven Uniques Endophytes Isolated from Festuca pratensis and Lolium prenne Grass Varieties. Phytopathology 96:S20.

Cobb JN, Geary BD, Fisher AJ, Stevens MR. 2006. Effective Protoplasing of Neotyphodium Endophytes in Forage Grasses. Phytopathology 96:S25.

Swenson EM, Geary B, Plata G, Bonifacio A, Maughan PJ, Jellen EN, Coleman CE, Fairbanks DJ, Stevens MR. 2006. Genetic diversity of Bolivian Peronospora farinosa f.sp. chenopodii (downy mildew) and quinoa's resistance response. Phytopathology 96:S112.

Eldredge S, Geary B, Jensen S, Gardner J. 2006. Mechanisms of Accelaerated Germination of Astragalus utahensis with Aspergillus and Alternaria Fungi. Phytopathology 96:S32.

Stevens MR, Scott JW, Cho JJ, Geary BD, Memmott FD. 2006. A New Dominantly Inherited Source of TSWV Resistance in Tomato Derived from L. chilense, which Resists Isolates that Overcome Sw-5. ASHS 41(4):991.

Geary B, Beck D, Thornton M. 2006. Bulb-to-Bulb Transmission of Botrytis allii in Dry Bulb Onion Production. ASHS 41(4):1064.

Geary B, Benson J, Wood S, Logan J, Broulotte B, Chambers A, Maughan J, Stevens M. 2006. Profiling of Physical and Molecular Characteristics in Neotyphodium Isolates. ASHS 41(4):1035.

Brown B, Geary B, Morra M, Borek R. 2006. Biofumigant Response to Phosphorus. Second International Biofumigation Symposium.

Geary B, Brown B, Ransom C, Hafez S. 2006. Biofumigants in Commercial Onion Production to Control Weed, Nematode and Disease Pests. Second International Biofumigation Symposium.

Swenson EM, Geary B, Plata G, Bonifacio A, Maughan PJ, Jellen EN, Coleman CE, Fairbanks DJ, Stevens MR. 2006. AFLP Fingerprints for Isolates of Peronospora farinosa f.sp. chenopodii (Downy Mildew) in Quinoa from the Andes of South America. Plant and Animal Genomes XIV Conference.

Conference Proceedings

Black B, Neville B, Ewell C, Geary BD, Hopkins BG. 2015. Nitrogen nutrition impact on incidence of Rhizoctonia infection of Agrostis stolonifera. Brookings, SD: International Plant Nutrient Institute. <website>

Geary BD, Hopkins BG, Jolley VD, Benson J, Miller J, Stevens MR. 2010. Nutrient and pathogen interactions in potato: impacts of pH and calcium on pink rot disease development. Bohl, editor. Moscow, ID: University of Idaho.

Geary BD, Benson J, Miller J, Hopkins BG, Jolley VD, Stevens MR. 2010. Pink rot of potato, influence of pH and calcium on disease development.

Dockter RB, Broderick SR, Dockter KG, Tumbleson DM, Maughan PJ, Geary BD, Stevens MR. 2010. Molecular marker development using 454-pyrosequencing in four species of Penstemon. 8th ed. <website>

Blaisdell B, Geary B, Morton J, Kearns M, Johnson DA, Hopkins BG, Jolley VD. 2009. Available nitrogen levels influence Colletotorichum coccodes infection severity of Russet Burbank potato roots. Portland, OR: Phytopathology.

Kearns MJ, Geary B, Song E, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. 2009. Infection severity of Colletotorichum coccodes in Russet Burbank potatoes with respect to environmental potassium. Portland, OR: Phytopathology.

Vargas A, Geary B, Stevens M, Bonifacio A, Fairbanks D, Maughan J, Jellen E, Coleman C. 2009. Quinoa cultivar resistance to Peronospora farinosa f. sp. chenopodii. Portland, OR: Phytopathology.

Dockter RB, Daley JD, Daley SL, Mendenhall MA, Ewell BJ, Geary B, Broderick SR, Stevens MR. 2009. Early phenotypic mutation results induced by Ethyl Methyl Sulfonate (EMS) on species of Penstemon. st. Louis, MI: Hortscience.

Broderick SR, Dockter RB, Mendenhall MA, Daley JD, Daley SL, Ewell BJ, Mock TJ, Love S, Geary B, Stevens MR. 2009. Utilizing flow cytometry for quantitative estimations of nuclear DNA in over 50 Penstemon species. St. Louis, MI: Hortscience.

Miller JS, Hamm PB, Olsen N, Johnson DA, Woodell L, Miller TD, Geary B. 2009. Managing silver scurf and black dot in potato storage.

Chambers A, Geary B, Black S, Candelaria N. 2007. Confirmation of Artificial Endophyte Inoculation in Maize (Zea mays) and Tomato (Lycopersicon esculentum) by Scanning Electron Microscopy and PCR Amplification of ITS Sequences. San Diego, CA: Phytopathology.

Eldredge SD, Geary B, Jensen S. 2007. Field and Greenhouse Trials Relating Complex Soil Environments with Accelerated Germ Responses of Astragalus utahensis to Alternaria and Aspergillus fungi. San Diego, CA: Phytopathology.

Benson J, Geary B, Hopkins BG, Jolley VD, Miller JR. 2007. Influence of pH on Infection of Phytophthora erythroseptica on Solanum tuberosum. San Diego CA: Phytopathology.

Kitz L, Hooper GR, Stevens MR, Geary B. 2007. Visualization of Peronospora farinosa infection and growth in quinoa using scanning electron microscopy. San Diego, CA: Phytopathology.

Thornton M, Geary B, Beck D. 2007. The influence of Surround WP and lifting practices on storage disease, sun scorch and bulb color of red onions.

Presentations

Graham R, Ensign B, Stevens MR, Geary BD. The induction of polyploidy in Agastache plants. Utah Conference on Undergraduate Research. St. George, Utah. 2015 .

Stevens MR, Johnson RL, Geary BD. Breeding native flowers for drought tolerant urban landscapes; 2014 progress report. Annual WERA Meetings. Kaysville, Utah. 2014 .

Stevens MR, Dockter RB, Geary BD. Progress report on understanding breeding with the genus Penstemon. Annual WERA Meetings. Reno, Nevada. 2013 .

Nordin A, Geary BD, Gneck J, Jolley VD, Hopkins BG, Merrell M, Baron A. Influence of pH, sulfur, chloride, and potassium on infection severity of Verticillium dahliae in Russet Burbank potato roots. Horticultural Science Annual Meetings. Waikoloa, HA. 2011 .

Hopkins BG, Nordin A, Geary BD, Johnson DA, Gneck J, Jolley VD, Merrell M, Baron A. Influence of pH, sulfur, chloride, and potassium on infection severity of Verticillium dahliae in Russet Burbank potato roots. Potato Association of America. Raleigh, SC. 2011 .

Stevens MR, Geary BD, Dockter RB, Dockter KG, Broderick SR, Daley SL, Love SL. Identifying germplasm for breeding native intermountain drought tolerant flowers. Annual WERA Meetings. Aberdeen, Idaho. 2010 .

Dockter RB, Broderick SR, Dockter KG, Tumbleson DM, Maughan PJ, Geary BD, Stevens MR. Molecular marker development using 454-pyrosequencing in four species of Penstemon. Am Society for Horticultural Science Annual Conference. Palm Desert, CAlifornia. 2010 .

Washburn JD, Geary BD, Kearns MJ, Stevens MR. Alyssum flower mutagenesis: Ornamental crop improvement. American Society for Horticulture Annual Conference. Palm Desert, California. 2010 .

Gneck J, Geary BD, Johnson DA, Hopkins BG, Jolley VD. Influence of differing phosphorus levels on infection severity of Collectotrichum coccodes in Russet Burbank potato roots. Potato Association of America Annual Meetings. Corvallis, Oregon. 2010 .

Geary BD, Benson J, Miller J, Hopkins BG, Jolley VD, Stevens MR. Pink rot of potato, influence of pH and calcium on disease development. Southern Rocky Mountain Agricultureal Conference. Alamosa. Colorado. 2010 .

Hopkins BG, Geary BD, Jolley VD, Miller JS. Nutrient and Nutrition Interactions in Potato. Idaho Potato Conference. Pocatello, ID. 2010 .

Geary BD, Hopkins BG, Jolley VD, Benson J, Miller J, Stevens MR. Nutrient and pathogen interactions in potato: Impacts of pH and calcium on pink rot disease development. Idaho Potato Growers Conference. Pocatello, Idaho. 2010 .

Stevens MR, Geary BD, Broderick SR, Ewell BJ, Dockter RB, Mendenhall MA, Daley SL, Daley JD, Mock TJ, Love SL. Understanding Penstemon diversity in an effort to initiate a breeding program within the genus for urban landscapes of the Intermountain West. Annual WERA Meetings. Laramie, WY. 2009 .

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