Projects

ENHANCING SUSTAINABILITY OF POTATO SYSTEMS IN THE NORTHEAST Appropriated (D)   Accession Number: 414543

Publications

Supplemental Irrigation and Cultivar Effects on Potato Tuber Diseases - (Peer Reviewed Journal) - (22-Sep-09)

Soil phosphatase and urease activities impacted by cropping systems and water management - (Abstract)

He, Z., Honeycutt, C.W., Griffin, T.S., Olanya, O.M., Larkin, R.P., Halloran, J.M. 2009. Soil phosphatase and urease activities impacted by cropping systems and water management. American Society of Agronomy Meetings. on-line publication.

Efficacy of Fungicide Mixtures for Management of Phytophthora infestans (US-1) on Potato - (Peer Reviewed Journal) - (13-Jul-09)

Recent developments and challenges in the mansgement of tuber blight of potato (Solanum tuberosum) caused by Phytophthora infestans - (Review Article) - (09-Jul-09)

Comparison of Three Soil P Tests and Their Relationship With Potato Yield - (Abstract)

He, Z., Honeycutt, C.W., Griffin, T.S., Olanya, O.M., Larkin, R.P., Halloran, J.M. 2009. Comparison of Three Soil P Tests and Their Relationship With Potato Yield. Soil Science Society of America Annual Meeting. Published on CD-Rom

Yield Stability Analysis of Ipomoea batatus L. Cultivars in Diverse Environments - (Peer Reviewed Journal)

Osiru, M., Adipala, E., Olanya, O.M., Kapinga, R., Lemaga, B. 2009. Yield Stability Analysis of Ipomoea batatus L. Cultivars in Diverse Environments. Australian Journal of Crop Science. 3:213-220.

The Effect of Cropping Systems and Irrigation Management on Development of Potato Early Blight - (Peer Reviewed Journal)

Olanya, O.M., Honeycutt, C.W., Larkin, R.P., Griffin, T.S., He, Z., Halloran, J.M. 2009. The Effect of Cropping Systems and Irrigation Management on Development of Potato Early Blight. Journal of Plant Pathology. 75:367-375.

Fungicide effects on different spore types of Phytophthora infestans - (Abstract)

Olanya, O.M., Honeycutt, C.W., Larkin, R.P., He, Z., Halloran, J.M. 2009. Fungicide effects on different spore types of Phytophthora infestans. (abstract) American Phytopathological Society annual meeting. p.741.

Development of early and late blight under different cropping systems and irrigation management - (Abstract)

Olanya, O.M., Honeycutt, C.W., Larkin, R.P., Griffin, T.S., He, Z., Halloran, J.M. 2009. Development of early and late blight under different cropping systems and irrigation management. (abstract) Potato Association of America Proceedings. p. 48.

Development of early and late blight under different cropping systems and irrigation management - (Proceedings/Symposium)

Olanya, O.M., Honeycutt, C.W., Larkin, R.P., Griffin, T.S., He, Z., Halloran, J.M. 2009. Development of early and late blight under different cropping systems and irrigation management. Northeast Potato Technology Forum. Page 9.

Identifying Constraints to Potato System Sustainability: Soil Test Phosphorus and Soil Microbial Biomass Phosphorus - (Proceedings/Symposium)

He, Z., Honeycutt, C.W., Griffin, T.S., Olanya, O.M., Larkin, R.P., Halloran, J.M. 2009. Identifying Constraints to Potato System Sustainability: Soil Test Phosphorus and Soil Microbial Biomass Phosphorus. Northeast Potato Technology Forum. Pages 3-6.

Identifying Constraints to Potato System Sustainability: Soil and Plant Growth Relationships - (Proceedings/Symposium)

Honeycutt, C.W., Griffin, T.S., Larkin, R.P., He, Z., Olanya, O.M., Halloran, J.M. 2009. IDENTIFYING CONSTRAINTS TO POTATO SYSTEM SUSTAINABILITY: SOIL AND PLANT GROWTH RELATIONSHIPS. Northeast Potato Technology Forum. p. 1.

Identifying constraints to potato systems sustainability: Soilborne diseases and soil microbial communities - (Proceedings/Symposium)

Larkin, R.P., Honeycutt, C.W., Griffin, T.S., Halloran, J.M., Olanya, O.M., He, Z. 2009. Identifying constraints to potato systems sustainability: Soilborne diseases and soil microbial communities. Northeast Potato Technology Forum Proceedings. p. 7.

Identifying and Reducing Constraints to Potato Productivity - (Abstract)

Honeycutt, C.W., Griffin, T.S., Larkin, R.P., Halloran, J.M., Olanya, O.M., He, Z. 2009. IDENTIFYING AND REDUCING CONSTRAINTS TO POTATO PRODUCTIVITY. Maine Potato Conference Abstracts. Page 23.

Infection Potential of Hairy Nightshade (Solanum sarrachoides) by Phytophthora Infestans and Late Blight Implications of the Alternate Host - (Peer Reviewed Journal)

Olanya, O.M., Plant, A.B., Larkin, R.P., Honeycutt, C.W. 2009. Infection Potential of Hairy Nightshade (Solanum sarrachoides) by Phytophthora Infestans and Late Blight Implications of the Alternate Host. Journal of Phytopathology. 157:427-437.

Identifying Constraints to Potato System Sustainability: Soils - (Proceedings/Symposium)

Honeycutt, C.W., Griffin, T.S., He, Z., Larkin, R.P., Olanya, O.M., Halloran, J.M. 2008. Identifying Constraints to Potato System Sustainability: Soils. Potato Association of America Proceedings. CD-ROM.

Identifying Constraints to Potato Cropping System Sustainability - (Abstract)

Honeycutt, C.W., Griffin, T.S., Larkin, R.P., He, Z., Olanya, O.M., Halloran, J.M. 2008. Identifying Constraints to Potato Cropping System Sustainability. American Society of Agronomy Abstracts. Published on CD-Rom.

Modifying Potato Systems to Reduce Yield Constraints - (Abstract)

Griffin, T.S., Honeycutt, C.W., Larkin, R.P., Halloran, J.M., Olanya, O.M., He, Z. 2008. Modifying Potato Systems to Reduce Yield Constraints. American Society of Agronomy Branch Meeting. CD-ROM.

Effects of Mulch and Potato Hilling on Development of Foliar Blight (Phytophthora infestans) and Control of Tuber Blight Infection - (Peer Reviewed Journal)

Nyankanga, R.O., Wien, H.C., Olanya, O.M. 2008. Effects of Mulch and Potato Hilling on Development of Foliar Blight (Phytophthora infestans) and Control of Tuber Blight Infection. Potato Research. 51:101-111.

Stability of Sweet Potato Cultivars to Alternaria Leaf and Stem Blight Disease - (Peer Reviewed Journal)

Osiru, M., Olanya, O.M., Adipala, E., Lemaga, B., Kapinga, R. 2009. Stability of Sweet Potato Cultivars to Alternaria Leaf and Stem Blight Disease. Journal of Phytopathology. 157:172-180.

Enhancing Potato System Sustainability: Microclimate, Early Blight and Late Blight Potential - (Abstract)

Olanya, O.M., Honeycutt, C.W., Larkin, R.P., Griffin, T.S., He, Z., Halloran, J.M. 2008. Enhancing Potato System Sustainability: Microclimate, Early Blight and Late Blight Potential. American Phytopathological Society Abstracts. 98:S115.

Identifying Constraints to Potato System Sustainability: Diseases - (Proceedings/Symposium)

Larkin, R.P., Olanya, O.M., Griffin, T.S., Honeycutt, C.W., He, Z., Halloran, J.M. 2008. Identifying Constraints to Potato System Sustainability: Diseases. Potato Association of America Proceedings. CD-ROM.

Development of Tuber Blight (Phytophthora infestans) on Potato Cultivars Based on In-Vitro Assays and Field Evaluations - (Peer Reviewed Journal)

Nyankanga, R.O., Olanya, O.M., Wien, H.C., El-Bedewy, R., Ojiambo, P.S., Karinga, J. 2008. Development of Tuber Blight (Phytophthora infestans) on Potato Cultivars Based on In-Vitro Assays and Field Evaluations. HortScience.43:1501-1508.

Enhancing Potato System Sustainability: Assessing the Economic Potential of Alternative Systems - (Abstract)

Halloran, J.M., Honeycutt, C.W., Griffin, T.S., Larkin, R.P., Olanya, O.M., He, Z. 2008. Enhancing Potato System Sustainability: Assessing the Economic Potential of Alternative Systems. Northeast Potato Technology Forum Abstracts. CD-ROM.

Enhancing Potato System Sustainability: Storage and Cycling of Carbon and Plant Nutrients in Soil - (Proceedings/Symposium)

Griffin, T.S., Honeycutt, C.W., He, Z., Larkin, R.P., Halloran, J.M., Olanya, O.M. 2008. Enhancing Potato System Sustainability: Storage and Cycling of Carbon and Plant Nutrients in Soil. Northeast Potato Technology Forum Abstracts. CD-ROM.

Enhancing Potato System Sustainability: Soilborne Diseases and Soil Microbial Communities - (Abstract)

Larkin, R.P., Honeycutt, C.W., Griffin, T.S., Halloran, J.M., Olanya, O.M., He, Z. 2008. Enhancing Potato System Sustainability: Soilborne Diseases and Soil Microbial Communities. Northeast Potato Technology Forum Abstracts. CD-ROM.

Enhancing Potato System Sustainability: Project Overview, Plant Growth, and Yield - (Abstract)

Honeycutt, C.W., Griffin, T.S., Larkin, R.P., Halloran, J.M., Olanya, O.M., He, Z. 2008. Enhancing Potato System Sustainability: Project Overview, Plant Growth, and Yield. Northeast Potato Technology Forum Abstracts. CD-ROM.

Enhancing Potato System Sustainability: Microclimate, Early Blight and Late Blight Potential - (Abstract)

Olanya, O.M., Honeycutt, C.W., Larkin, R.P., Griffin, T.S., He, Z., Halloran, J.M. 2008. Enhancing Potato System Sustainability: Microclimate, Early Blight and Late Blight Potential. Northeast Potato Technology Forum Abstracts.

Enhancing Potato System Sustainability: Crop Rotation Impacts on Soil Phosphatase Activity - (Abstract)

He, Z., Honeycutt, C.W., Griffin, T.S., Olanya, O.M., Larkin, R.P., Halloran, J.M. 2008. Enhancing Potato System Sustainability: Crop Rotation Impacts on Soil Phosphatase Activity. Northeast Potato Technology Forum Abstracts. p. 47-51.

Leaf Petiole and Stem Blight Disease of Sweet Potato Caused by Alternaria Bataticola in Uganda - (Research Notes)

Osiru, M., Adipala, E., Olanya, O.M., Paula, K., Lemaga, B., Kapinga, R. 2008. Leaf Petiole and Stem Blight Disease of Sweet Potato Caused by Alternaria Bataticola in Uganda. Plant Pathology. 7:118-119

Capillary Electrophoresis and Fluorescence Excitation-Emission Matrix Spectroscopy for Characterization of Humic Substances - (Peer Reviewed Journal)

He, Z., Ohno, T., Wu, F., Olk, D.C., Honeycutt, C.W., Olanya, O.M. 2008. Capillary Electrophoresis and Fluorescence Excitation-Emission Matrix Spectroscopy for Characterization of Humic Substances. Soil Science Society of America Journal. 72:1248-1255.

Addressing Constraints to Potato Productivity - (Proceedings/Symposium)

Griffin, T.S., Honeycutt, C.W., Larkin, R.P., Halloran, J.M., Olanya, O.M., He, Z. 2008. Addressing Constraints to Potato Productivity. Maine Potato Conference Abstracts. CD-ROM.

Evaluation of Potato Clones for Resistance to Stem Canker and Tuber Black Scurf in Field Studies Following Artificial Inoculation with Rhizoctonia Solani Ag-3 in Maine - (Peer Reviewed Journal)

Olanya, O.M., Reeves, A.F., Lambert, D.H., Porter, G.A. 2007. Evaluation of potato breeding lines for resistance to stem canker and tuber black scurf in field studies following artificial inoculation with rhizoctonia solani ag-3 in maine. Archives of Phytopathology and Plant Protection. 2007 On Line. p. 1-10. 2009 42:409-418.

Relationship Between Incidence of Late Blight Tuber Rot, Foliage Blight Control and the Effect of Weather and Soil Variables - (Peer Reviewed Journal)

Nyankanga, R.O., Wein, H.C., Olanya, O.M. 2008. Relationship between incidence of late blight tuber rot, foliage blight control and the effect of weather and soil variables. Canadian Journal of Plant Pathology. 29:372-382.

Soil Water in Relation to Irrigation, Uptake, and Potato Yield in a Humid Climate - (Peer Reviewed Journal)

Starr, G.C., Rowland, D., Griffin, T.S., Olanya, O.M. 2008. Soil Water in Relation to Irrigation, Uptake, and Potato Yield in a Humid Climate. Agricultural Water Management. 95:292-300.

Yield Stability Analysis of Late Blight Resistant Potato Selections - (Peer Reviewed Journal)

Mulema, J.M., Adipala, E., Olanya, O.M., Hakiza, J.J. 2008. Yield stability analysis of late blight resistant potato selections. Experimental Agriculture. 44:145-155.

Infection Potential of Hairy Nightshade By Phytophthora infestans and Epidemiological Implications of the Alternate Host - (Abstract)

Olanya, O.M., Larkin, R.P., Honeycutt, C.W. 2007. Infection Potential of Hairy Nightshade By Phytophthora infestans and Epidemiological Implications of the Alternate Host. American Phytopathological Society Abstracts. Vol 97 (7): S87, 2007

Effects of Different Soil and Crop Management Strategies on Soil Microbial Communities and Soilborne Diseases of Potato - (Abstract)

Larkin, R.P., Griffin, T.S., Olanya, O.M., Starr, G.C., Honeycutt, C.W. 2007. Effects of Different Soil and Crop Management Strategies on Soil Microbial Communities and Soilborne Diseases of Potato. American Phytopathological Society Abstracts. Vol. 97(7): S61, 2007

Temperature, Relative Humidity and Pathogen Factors Influencing Phytophthora Infestans Development on Hairy Nightshade - (Abstract)

Olanya, O.M., Plant, A.B., Larkin, R.P., Honeycutt, C.W. 2007. Temperature, Relative Humidity and Pathogen Factors Influencing Phytophthora Infestans Development on Hairy Nightshade. Northeast Potato Technology Forum Abstracts. Pg. 48

Schematic Models for Potato Tuber Blight Infection Based on Foliar Blight Severity, Cultivar Resistance, Soil and Atmospheric Variables - (Abstract)

Nyankanga, R.O., Olanya, O.M., Wein, H.C. 2007. Schematic Models for Potato Tuber Blight Infection Based on Foliar Blight Severity, Cultivar Resistance, Soil and Atmospheric Variables. Northeast Potato Technology Forum Abstracts. Pg. 86

Characterization of IHSS Natural Organic Matter by Capillary Electrophoresis and Flourescence Spectroscopy - (Abstract)

He, Z., Ohno, T., Wu, F., Olk, D.C., Honeycutt, C.W., Olanya, O.M. 2007. Characterization of IHSS Natural Organic Matter by Capillary Electrophoresis and Flourescence Spectroscopy. American Chemical Society Abstracts. 10th Anniversary Humic Science and Technology Conference Abstracts; page 27

Microclimate and Potential for Late Blight Development in Irrigated Potato - (Peer Reviewed Journal)

Olanya, O.M., Starr, G.C., Honeycutt, C.W., Griffin, T.S., Lambert, D.H. 2007. Microclimate and potential for late blight development in irrigated potato. Crop Protection Journal. 26:1412-1421

Glycoalkaloid Content of Some Superior Potato (Solanum Tuberosum L.) Clones and Commercial Cultivars - (Peer Reviewed Journal)

Kirui, K.G., Misra, A.K., Olanya, O.M., El-Bedewy, R., Ewell, P.T., Friedman, M. 2007. Glycoalkaloid content of some superior potato (solanum tuberosum l.) clones and commercial varieties. Archives of Phytopathology and Plant Protection. 2007 on line. p. 1-11. 2009 42:453-463.

Effects of Pest and Soil Management Systems on Potato Diseases - (Peer Reviewed Journal)

Olanya, O.M., Lambert, D.H., Porter, G.A. 2006. Effects of Pest and Soil Management Systems on Potato Diseases. American Journal of Potato Research. 83:397-408.

Distributuion of Hairy Nightshade in Maine Potato Agro-Ecosystems and Potential Risks of Infection by Phytophthora Infestans - (Abstract)

Olanya, O.M., Plant, A.B., Larkin, R.P., Lambert, D.H. 2006. Distributuion of hairy nightshade in maine potato agro-ecosystems and potential risks of infection by phytophthora infestans. Northeast Potato Technology Forum Abstracts. CD-ROM

Efficacy of Essential Oils and Biopesticides on Phytophthora Infestans Suppression in Laboratory and Growth Chamber Studies - (Peer Reviewed Journal)

Olanya, O.M., Larkin, R.P. 2006. Efficacy of Essential Oils and Biopesticides on Phytophthora Infestans Suppression in Laboratory and Growth Chamber Studies. Biocontrol Science and Technology; 16:901-917.

Late Blight Development on Hairy Nightshade and Potential Disease Risks - (Abstract)

Olanya, O.M., Plant, A.B., Larkin, R.P., Lambert, D.H. 2006. Late blight development on hairy nightshade and potential disease risks. Maine Potato Conference Abstracts. Page 20.

Dynamics of Development of Late Blight (Phytophthora Infestans) in Potato, and Comparative Resistance of Cultivars in the Highland Tropics - (Peer Reviewed Journal)

Olanya, O.M., Ojiambo, P.S., Nyankanga, R.O. 2006. Dynamics of Development of Late Blight (Phytophthora Infestans) in Potato, and Comparative Resistance of Cultivars in the Highland Tropics. Canadian Journal of Plant Pathology. 28:84-94.

Farmers' Perception of Agronomic Practices Associated with Potato Production in the Highland Tropics and the Impacts of Field School Participation - (Abstract)

Olanya, O.M., Hakiza, J.J., Akem, C.N., Imelda, I., El-Bedewy, R. 2005. Farmers' perception of agronomic practices associated with potato production in the highland tropics and the impacts of field school participation. Australian Plant Pathology. Conference Handbook of Abstracts, Deakin University Waterfront Campus, Geelong, Victoria, Australia, September 26, 2005, pg 176

Effects of Temperature and Relative Humidity on Development of Late Blight Incited by Phytophthora Infestans Isolates from Diverse Genotypes and Hosts - (Abstract)

Olanya, O.M., Larkin, R.P. 2005. Effects of temperature and relative humidity on development of Late Blight incited by phytophthora Infestans isolates from diverse genotypes and hosts. American Phytopathological Society Abstracts. July 2005; v. 95. p. S77.

Release of Four Late Blight Tolerant Potato Varieties in Kenya - (Peer Reviewed Journal)

Lung'Aho, C., Nderitu, S.N., Kabira, J.N., Walingo, A., Olanya, O.M. 2005. Yield performand and release of four late blight tolerant potato varieties in Kenya. Journal of Agronomy and Crop Science. 5 (1): 57-61

Occurrence and Cross-Infection of Phytophthora Infestans on Hairy Nightshade (Solanum Sarrachoides) and Potato (Solanum Tuberosum) in Maine - (Research Notes)

Olanya, O.M., Lambert, D.H., Plant, A.B. 2005. Occurrence and cross-infection of phytophthora infestans on hairy nightshade (solanum sarrachoides) and potato (solanum tuberosum) in maine. Canadian Journal of Plant Pathology. v 27: p458-460.

Seed-Plot Technique: Empowerment of Farmers in Production of Bacterial Wilt-Free Seed in Kenya and Uganda - (Book/Chapter)

Kinyua, Z.M., Olanya, O.M., El-Bedewy, R., Smith, J.J., Crissman, C. 2005. Seed-plot technique: empowerment of farmers in production of bacterial wilt-free seed in kenya and uganda. Bacterial Wilt, The Disease and Ralstonia Solanacearum Species Complex. APS Press, St. Paul, Minnesota, USA, pg 510

Occurrence of Phytophthora Infestans on Hairy Nightshade in Maine: Disease Implications of Isolates from Divergent Hosts and Genotypes - (Abstract)

Olanya, O.M., D. H., L., A, P. 2005. Occurrence of phytophthora infestans on hairy nightshade in maine: disease implications of isolates from divergent hosts and genotypes. Northeast Potato Technology Forum Abstracts. Page 58

Microclimatic Parameters and Potential for Late Blight Development in Irrigated Potato in Maine - (Abstract)

Olanya, O.M., Starr, G.C. 2005. Microclimatic parameters and potential for late blight development in irrigated potato in maine. Northeast Potato Technology Forum Abstracts. p. 66; Fredericton, New Brunswick, Canada

Pathogenicity and Metalaxyl Sensitivity of Phytophthora Infestans Isolates Obtained from Garden Huckleberry, Potato and Tomato in Cameroon - (Peer Reviewed Journal)

Fontem, D.A., Olanya, O.M., Tsopmbeng, G.R., Owona, M.P. 2005. Pathogenicity and metalaxyl sensitivity of phytophthora infestans isolates obtained from garden huckleberry, potato and tomato in cameroon. Crop Protection Journal. Volume 24; pages 449-456

Potato Production in the Tropics: Constraints, Fungicide Use, and the Impact of Ipm Strategies - (Trade Journal)

Olanya, O.M., Hakiza, J.J., Crissman, C.C. Potato production in the tropics: constraints, fungicide use, and the impact of ipm strategies. Outlooks on Pest Management. pg 181-184

Assessment and Stability of Late Blight Resistance in Population B Potato Clones in Uganda - (Peer Reviewed Journal)

Mulema, J.K., Olanya, O.M., Adipala, E., Wagoire, W.W. 2005. Stability of late blight resistance in population B potato clones. Potato Research. 47: 11-24

Reaction of Certain Solanaceous and Asteraceous Plant Species to Inoculation with Phytophthora Infestans in Cameroon - (Peer Reviewed Journal)

Fontem, D.A., Njualem, B.F., Olanya, O.M. 2004. Reaction of certain solanaceous and asteraceous plant species to inoculation with phytophthora infestans in cameroon. Journal of Phytopathology. 154: 331-336

Fungicide Application and Host Resistance for Potato Late Blight Management: Benefits Assessment from on-Farm Studies in S.W. Uganda - (Peer Reviewed Journal)

Namanda, S., Olanya, O.M., Adipala, E., Hakiza, J.J. 2004. Fungicide application and host resistance for potato late blight management: benefits assessment from on-farm studies in s.w. uganda. Crop Protection Journal. 23: 1075-1083

Comparison of Late Blight Suppression by Natural Products and the Impact of Genotype Diversity on Disease Development and Control - (Abstract)

Olanya, O.M., Larkin, R.P., Honeycutt, C.W. 2004. Comparison of late blight suppression by natural products and the impact of genotype diversity on disease development and control. American Phytopathological Society Abstracts.vol 94 (6): pg S77-S78. (#P-2004-0525-AMA)

Suppression of Phytophthora Infestans by Essential Oils and Natural Products in Lab Assays and Growth Chamber Studies - (Abstract)

Olanya, O.M., Larkin, R.P. 2004. Suppression of phytophthora infestans by essential oils and natural products in lab assays and growth chamber studies. Northeast Potato Technology Forum Abstracts. pg 29

Farmers' Cultural Practices and Management of Potato Late Blight in Kenya Highlands: Implications for Development of Integrated Disease Management - (Peer Reviewed Journal)

Nyankanga, R.O., Wein, H.C., Olanya, O.M., Ojiambo, P.S. 2004. Farmers' cultural practices and management of potato late blight in kenya highlands: implications for development of integrated disease management. International Journal of Pest Management. 50 (2) : 135-144