selected publications
-
letter
- Orders ignored. New Scientist. 53-53. 1998
-
article
- A simple, hand-held decision support designed tool to help resource-poor farmers improve potato late blight management. Crop Protection. 134:105186. 2020
- Global cropland connectivity: A risk factor for invasion and saturation by emerging pathogens and pests. BioScience. 70:744-758. 2020
- Potato seed systems. 2020
- Stacking three late blight resistance genes from wild species directly into African highland potato varieties confers complete field resistance to local blight races. Plant Biotechnology Journal. 17:1119-1129. 2019
- Phytophthora urerae sp. nov., a new clade 1c relative of the Irish famine pathogen Phytophthora infestans from South America. Plant Pathology. 68:557-565. 2019
- Genotyping of Phytophthora infestans in Eastern Africa Reveals a Dominating Invasive European Lineage.. Phytopathology. 109:670-680. 2019
- Greater aggressiveness in the 2_A1 lineage of Phytophthora infestans may partially explain its rapid displacement of the US‐1 lineage in east Africa. Plant Pathology. 68:566-575. 2019
- Characterization of tuber blight‐suppressive soils from four provinces of the Ecuadorean Andes. Plant Pathology. 67:1562-1573. 2018
- R/Avr gene expression study of Rpi-vnt1.1 transgenic potato resistant to the Phytophthora infestans clonal lineage EC-1. Plant Cell Tissue and Organ Culture. 131:259-268. 2017
- Epidemic network analysis for mitigation of invasive pathogens in seed systems: Potato in Ecuador. Phytopathology. 107:107367-109. 2017
- Resistance genes in global crop breeding networks. Phytopathology. 107:106484-1278. 2017
- Global cropland connectivity: A risk factor for invasion and saturation by emerging pathogens and pests. bioRxiv. 106542. 2017
- A risk assessment framework for seed degeneration: Informing an integrated seed health strategy for vegetatively-propagated crops. Phytopathology. 107:105361-1135. 2017
- Incomplete Infection of Secondarily Infected Potato Plants - an Environment Dependent Underestimated Mechanism in Plant Virology.. Frontiers in Plant Science. 8:74. 2017
- Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem.. Plant Pathology. 65:1109-1117. 2016
- Displacement of US‐1 clonal lineage by a new lineage of Phytophthora infestans on potato in Kenya and Uganda. Plant Pathology. 65:587-592. 2016
- Rpi-blb2 gene from Solanum bulbocastanum confers extreme resistance to late blight disease in potato. Plant Cell Tissue and Organ Culture. 125:269-281. 2016
- Pests and diseases affecting potato landraces and bred varieties grown in Peru under indigenous farming system. REVISTA LATINOAMERICANA DE LA PAPA. 19:29-41. 2015
- Climate change may have limited effect on global risk of potato late blight. Global Change Biology. 20:3621-3631. 2014
- Wide Phenotypic Diversity for Resistance to Phytophthora infestans Found in Potato Landraces from Peru.. Plant Disease. 98:1530-1533. 2014
- The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes. Proceedings of the National Academy of Sciences of the United States of America. 111:8791-8796. 2014
- Phenotypic Stability and Genome-Wide Association Study of Late Blight Resistance in Potato Genotypes Adapted to the Tropical Highlands. Phytopathology. 104:624-633. 2014
- Review of Potato Biotic Constraints and Experiences with Integrated Pest Management Interventions 2014
- Estimating the effectiveness of management strategies to reduce seed degeneration in vegetatively-propagated crops: A theoretical framework. Phytopathology. 103:145-145. 2013
- Using Host Resistance to Manage Potato Late Blight with Particular Reference to Developing Countries. Potato Research. 55:205-216. 2012
- Use of Phosphonate to Manage Foliar Potato Late Blight in Developing Countries.. Plant Disease. 96:1008-1015. 2012
- A rebuttal to the letter to the editor concerning 'Defining species boundaries in the genus Phytophthora: The case of Phytophthora andina. Plant Pathology. 61:221-223. 2012
- The Plant Pathogen Phytophthora andina Emerged via Hybridization of an Unknown Phytophthora Species and the Irish Potato Famine Pathogen, P. infestans. PLOS ONE. 6. 2011
- International Agricultural Research Tackling the Effects of Global and Climate Changes on Plant Diseases in the Developing World.. Plant Disease. 95:1204-1216. 2011
- A metamodeling framework for extending the application domain of process‐based ecological models. Ecosphere. 2:1-14. 2011
- Assessing the adequacy of the simulation model LATEBLIGHT under Nicaraguan conditions. Plant Disease. 95:839-846. 2011
- Evaluation of host susceptibility, pathogen aggressiveness and sporangial survival in soil as factors affecting incidence of potato tuber infection by Phytophthora infestans in Ecuador. Tropical Plant Pathology. 36:141-149. 2011
- Evaluation of contact fungicide spray regimes for control of late blight (Phytophthora infestans) in southern Ethiopia using potato cultivars with different levels of host resistance.. Tropical Plant Pathology. 36:21-27. 2011
- Phytophthora andina sp nov., a newly identified heterothallic pathogen of solanaceous hosts in the Andean highlands. Plant Pathology. 59:613-625. 2010
- Restriction of potato and tomato late blight development by sub‐phytotoxic concentrations of boron. Plant Pathology. 59:626-633. 2010
- Phenotypic Expression of Resistance to Phytophthora infestans in Processing Potatoes in Argentina. American Journal of Potato Research. 87:177-187. 2010
- Rainfall Thresholds as Support for Timing Fungicide Applications in the Control of Potato Late Blight in Ecuador and Peru.. Plant Disease. 93:142-148. 2009
- Estimating the Level of Susceptibility to Phytophthora infestans in Potato Genotypes. Phytopathology. 99:782-786. 2009
- Plant Disease Epidemiology and Disease Management – Has Science Had an Impact on Practice? 2009
- Resistance to metalaxyl-M and cymoxanil in a dominant clonal lineage of Phytophthora infestans in Huanuco, Peru, an area of continuous potato production. European Journal of Plant Pathology. 125:87-95. 2009
- Population Genetics and Population Diversity of Phytophthora infestans 2008
- Comparison of two strategies for use of translaminar and contact fungicide in the control of potato late blight in the highland tropics of Ecuador. Crop Protection. 27:1098-1104. 2008
- Phylogenetic relationships of Phytophthora andina, a new species from the highlands of Ecuador that is closely related to the Irish potato famine pathogen Phytophthora infestans. Mycologia. 100:590-602. 2008
- Preemergence Infection of Potato Sprouts by Phytophthora infestans in the Highland Tropics of Ecuador.. Plant Disease. 92:569-574. 2008
- Aggressiveness of Phytophthora infestans and phenotypic analysis of resistance in wild Petota accessions in Ecuador. Plant Pathology. 56:549-561. 2007
- IDENTIFICATION OF STABLE RESISTANCE TO PHYTOPHTHORA INFESTANS IN POTATO GENOTYPES EVALUATED IN FIELD EXPERIMENTS IN PERU. Experimental Agriculture. 43:353-363. 2007
- Genetic Structure of the Population of Phytophthora infestans Attacking Solanum ochranthum in the Highlands of Ecuador. European Journal of Plant Pathology. 115:235-245. 2006
- Genetic diversity and host differentiation among isolates of Phytophthora infestans from cultivated potato and wild solanaceous hosts in Peru. Plant Pathology. 54:740-748. 2005
- Host specialization not detected among isolates of the EC-1 lineage of Phytophthora infestans attacking wild and cultivated potatoes in Peru. European Journal of Plant Pathology. 113:71-81. 2005
- Stability of resistance to Phytophthora infestans in potato: an international evaluation. Plant Pathology. 54:364-372. 2005
- Incidence of potato tuber blight in Ecuador. American Journal of Potato Research. 82:117-122. 2005
- Qualification of a plant disease simulation model: Performance of the LATEBLIGHT model across a broad range of environments. Phytopathology. 95:1412-1422. 2005
- Simulation of potato late blight in the Andes. I: Modification and parameterization of the LATEBLIGHT model. Phytopathology. 95:1191-1199. 2005
- Simulation of potato late blight in the Andes. II: Validation of the LATEBLIGHT model. Phytopathology. 95:1200-1208. 2005
- Evidence for host mediation of preinfection stages of Phytophthora infestans on the leaf surface of Solanum phureja. Journal of Phytopathology. 152:651-657. 2004
- Genetic diversity of Phytophthora infestans sensu lato in Ecuador provides new insight into the origin of this important plant pathogen. Phytopathology. 94:154-162. 2004
- Potential of sexual reproduction among host‐adapted populations of Phytophthora infestans sensu lato in Ecuador. Plant Pathology. 51:710-719. 2002
- Estimating the global severity of potato late blight with GIS‐linked disease forecast models. Plant Pathology. 49:697-705. 2000
- Host adaptation to potato and tomato within the US−1 clonal lineage of Phytophthora infestans in Uganda and Kenya. Plant Pathology. 49:531-539. 2000
- Stability in Population of Phytophthora infestans Attacking Tomato in Ecuador Demonstrated by Cellulose Acetate Assessment of Glucose-6-Phosphate Isomerase.. Plant Disease. 84:325-327. 2000
- A novel population of Phytophthora, similar to P-infestans, attacks wild Solanum species in Ecuador. Phytopathology. 90:197-202. 2000
- A Global Marker Database for Phytophthora infestans.. Plant Disease. 82:811-818. 1998
- Relationship between ineffective R-genes and expansion rate of lesions on potato leaves, caused by Phytophthora infestans. Plant Pathology. 47:130-136. 1998
- Host specificity of Phytophthora infestans on tomato and potato in Ecuador. Phytopathology. 88:265-271. 1998
- Resistance to late blight in potato. A putative gene that suppresses R genes and is elicited by specific isolates. Euphytica. 95:167-172. 1997
- First Report of Phytophthora infestans A2 Mating Type in Ecuador.. Plant Disease. 81:311-311. 1997
- A simple and low-cost method for leaf area measurement of detached leaves. Experimental Agriculture. 33:65-72. 1997
- Population genetic structure of Phytophthora infestans in Ecuador. Phytopathology. 87:375-380. 1997
- Foliage resistance toPhytophthora infestans (Mont.) de Bary in the Ecuadorian natinal collection ofSolanum phureja ssp.phureja Juz. & Buk. Potato Research. 38:3-10. 1995
- A SIMPLE NONDESTRUCTIVE TECHNIQUE FOR HEALTHY AND DISEASED LEAF-AREA ASSESSMENT OF POTATO PLANTS. Potato Research. 38:31-37. 1995
- The effect of using a Horsfall‐Barratt scale on precision and accuracy of visual estimation of potato late blight severity in the field. Plant Pathology. 43:675-682. 1994
- Association of soybean root mycoflora with root modulation, root necrosis and plant fresh weight. Annals of Applied Biology. 118:533-541. 1991
-
document
- Multilayer networks supporting healthy potato seed systems in Tungurahua, Ecuador 2016
- Abstracts of Presentations at the 2015 APS Annual Meeting 2015
- Recent developments concerning the population biology and control strategies of Phytophthora infestans in Asia and Africa 2015
- Cambio climático, enfermedades de las plantas e insectos plaga 2013
- Food security and plant disease epidemics: Modeling potential epidemics on rice, potato, and wheat. Phytopathology. S156-S156. 2010
-
hide from search
- Potato Production in China and Norway: Similarities, Differences and Future Challenges. Potato Research. 197-203. 2012
- The Andean fruit crop, pear melon (Solanum muricatum) is a common host for A1 and A2 strains of Phytophthora infestans in Ecuador.. Plant Pathology. 802-802. 2002
-
review
- Seed degeneration in potato: the need for an integrated seed health strategy to mitigate the problem in developing countries. Plant Pathology. 3-16. 2016
- Complexity in climate-change impacts: an analytical framework for effects mediated by plant disease. Plant Pathology. 15-30. 2011
- Beyond Yield: Plant Disease in the Context of Ecosystem Services. Phytopathology. 1228-1236. 2009