Search Results - "Esker, P."

A White Paper on Global Wheat Health Based on Scenario Development and Analysis by Savary, S, Djurle, A, Yuen, J, Ficke, A, Rossi, V, Esker, P D, Fernandes, J M C, Del Ponte, E M, Kumar, J, Madden, L V, Paul, P, McRoberts, N, Singh, P K, Huber, L, Pope de Vallavielle, C, Saint-Jean, S, Willocquet, L

“…Scenario analysis constitutes a useful approach to synthesize knowledge and derive hypotheses in the case of complex systems that are documented with mainly…”
Get full text

Distribution and diversity of begomoviruses in tomato and sweet pepper plants in Costa Rica by Barboza, N., Blanco‐Meneses, M., Esker, P., Moriones, E., Inoue‐Nagata, A.K.

“…Begomoviruses (genus Begomovirus, family Geminiviridae) have emerged as important plant pathogens in tropical and subtropical regions worldwide. Although these…”
Get full text

Does the P Value Have a Future in Plant Pathology? by Madden, L V, Shah, D A, Esker, P D

“…The P value (significance level) is possibly the mostly widely used, and also misused, quantity in data analysis. P has been heavily criticized on…”
Get full text

Perceptions of Midwestern Crop Advisors and Growers on Foliar Fungicide Adoption and Use in Maize by Esker, P D, Shah, D A, Bradley, C A, Conley, S P, Paul, P A, Robertson, A E

“…Foliar fungicide use in hybrid maize in the United States was rare before 2000. The decade from 2000 to 2010 saw foliar fungicides increasingly applied to…”
Get full text

Production situations as drivers of crop health: evidence and implications by Savary, S., McRoberts, N., Esker, P. D., Willocquet, L., Teng, P. S.

“…We witness unprecedented changes in Earth’s natural and man-made ecosystems. These changes are generated by a number of drivers – human population growth,…”
Get full text

Seasonal Patterns of Aster Leafhopper (Hemiptera: Cicadellidae) Abundance and Aster Yellows Phytoplasma Infectivity in Wisconsin Carrot Fields by Frost, K. E, Esker, P. D, Van Haren, R, Kotolski, L, Groves, R. L

“…In Wisconsin, vegetable crops are threatened annually by the aster yellows phytoplasma (AYp), which is obligately transmitted by the aster leafhopper. Using a…”
Get full text

Crop health and its global impacts on the components of food security by Savary, S., Bregaglio, S., Willocquet, L., Gustafson, D., Mason D’Croz, D., Sparks, A., Castilla, N., Djurle, A., Allinne, C., Sharma, Mamta, Rossi, V., Amorim, L., Bergamin, A., Yuen, J., Esker, P., McRoberts, Neil, Avelino, J., Duveiller, E., Koo, J., Garrett, K.

“…The literature on the importance of plant pathogens sometimes emphasizes their possible role in historical food shortages and even in famines. Aside from such…”
Get full text

Risk Factors for Crop Health Under Global Change and Agricultural Shifts: A Framework of Analyses Using Rice in Tropical and Subtropical Asia as a Model by Savary, S, Mila, A, Willocquet, L, Esker, P.D, Carisse, O, McRoberts, N

“…Plant disease epidemiology requires expansion of its current methodological and theoretical underpinnings in order to produce full contributions to global food…”
Get full text

Beyond Yield: Plant Disease in the Context of Ecosystem Services by CHEATHAM, M. R, ROUSE, M. N, ESKER, P. D, IGNACIO, S, PRADEL, W, RAYMUNDO, R, SPARKS, A. H, FORBES, G. A, GORDON, T. R, GARRETT, K. A

“…The ecosystem services concept provides a means to define successful disease management more broadly, beyond short-term crop yield evaluations. Plant disease…”
Get full text

Meta-Analysis of Yield Response of Hybrid Field Corn to Foliar Fungicides in the U.S. Corn Belt by Paul, P.A, Madden, L.V, Bradley, C.A, Robertson, A.E, Munkvold, G.P, Shaner, G, Wise, K.A, Malvick, D.K, Allen, T.W, Grybauskas, A, Vincelli, P, Esker, P

“…The use of foliar fungicides on field corn has increased greatly over the past 5 years in the United States in an attempt to increase yields, despite limited…”
Get full text

Factors Influencing Aster Leafhopper (Hemiptera: Cicadellidae) Abundance and Aster Yellows Phytoplasma Infectivity in Wisconsin Carrot Fields by Frost, K. E, Esker, P. D, Haren, R. Van, Kotolski, L, Groves, R. L

“…In Wisconsin, vegetable crops are threatened annually by infection of the aster yellows phytoplasma (AYp), the causal agent of aster yellows (AY) disease,…”
Get full text

Soybean Yield Response to Plant Distribution in Fusarium virguliforme Infested Soils by Swoboda, C.M, Pedersen, P, Esker, P.D, Munkvold, G.P

“…Sudden death syndrome (SDS), caused by the fungal pathogen Fusarium virguliforme, causes significant yield reductions in soybean [Glycine max (L.) Merr.] in…”
Get full text

Quantitative review of fungicide efficacy trials for managing soybean rust in Brazil by Scherm, H., Christiano, R.S.C., Esker, P.D., Del Ponte, E.M., Godoy, C.V.

“…With the arrival of Asian soybean rust (caused by Phakopsora pachyrhizi) in the Western Hemisphere in 2001, field research to optimize chemical control of this…”
Get full text

Soybean Yield and Heterodera Glycines Response to Rotation, Tillage, and Genetic Resistance by Conley, S.P, Gaska, J.M, Pedersen, P, Esker, P

“…Heterodera glycines continues to be the number one yield limiting factor in soybean [Glycine max (L.) Merr.] across the Midwest. Several genetic and agronomic…”
Get full text

Seasonal Phenology of Aphis glycines (Hemiptera: Aphididae) and Other Aphid Species in Cultivated Bean and Noncrop Habitats in Wisconsin by Mueller, E. E, Frost, K. E, Esker, P. D, Gratton, C

“…The occurrence of aphid-transmitted viruses in agricultural crops of the Midwest and northeastern United States has become more frequent since the arrival and…”
Get full text

Trap Height and Orientation of Yellow Sticky Traps Affect Capture of Chaetocnema pulicaria (Coleoptera: Chrysomelidae) by Esker, P. D., Obrycki, J., Nutter, F. W.

“…Field studies were conducted in Iowa during 2001 and 2002 to determine the optimal sampling height and orientation for using yellow sticky cards to monitor…”
Get full text

Temporal dynamics of corn flea beetle populations infested with Pantoea stewartii, causal agent of Stewart's disease of corn by Esker, P.D, Nutter, F.W. Jr

“…ABSTRACT In order to better understand the epidemiology of the Stewart's disease of corn pathosystem, quantitative information concerning the temporal dynamics…”
Get full text

Population Densities of Corn Flea Beetle (Coleoptera: Chrysomelidae) and Incidence of Stewart’s Wilt in Sweet Corn by Cook, K. A., Weinzierl, R. A., Pataky, J. K., Esker, P. D., Nutter, F. W.

“…To quantify populations of the corn flea beetle, Chaetocnema pulicaria Melsheimer (Coleoptera: Chrysomelidae), and refine estimates of a threshold for its…”
Get full text

Temporal Distribution of Chaetocnema pulicaria (Coleoptera: Chrysomelidae) Populations in Iowa by Esker, P. D, Obrycki, J, Nutter, F. W

“…In 1999 and 2000, yellow sticky cards and sweep net samples were used to document the occurrence of an overwintering adult generation of Chaetocnema pulicaria…”
Get full text

Use of geospatially-referenced disease and weather data to improve site-specific forecasts for Stewart's disease of corn in the US corn belt by Nutter, F.W, Rubsam, R.R, Taylor, S.E, Harri, J.A, Esker, P.D

“…Stewart's disease of corn, caused by the bacterium Pantoea stewartii (syn. Erwinia stewartii), is important because its presence within seed corn fields can…”
Get full text