In this study, the adequacy of the late blight simulation model LATEBLIGHT (version LB2004) was evaluated under Nicaraguan conditions. During 2007 to 2008, five field experiments were conducted in three potato-production regions in northern Nicaragua. Two susceptible (‘Cal White’ and ‘Granola’) a...
Blandon-Diaz, J.U.
,
Forbes, G.
,
Andrade-Piedra, J.L.
,
Yuen JE
,
[Assessing the adequacy of the simulation model LATEBLIGHT under Nicaraguan conditions]
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Assessing the adequacy of the simulation model LATEBLIGHT under Nicaraguan conditions
Currently there is no effective mechanism for measuring the potential benefits of integrated pest and disease interventions in terms of reducing pesticide risks in potato production in developing countries. The environmental impact quotient (EIQ), a composite hazard indicator, was applied to data...
Kromann, P.
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Pradel, W.
,
Cole, D.
,
Taipe, Arturo
,
Forbes, G.
,
[Use of the Environmental Impact Quotient to Estimate Health and Environmental Impacts of Pesticide Usage in Peruvian and Ecuadorian Potato Production]
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Use of the Environmental Impact Quotient to Estimate Health and Environmental Impacts of Pesticide Usage in Peruvian and Ecuadorian Potato Production
Seed potato degeneration, the reduction in yield or quality caused by an accumulation of pathogens and pests in planting material due to successive cycles of vegetative propagation, has been a long-standing production challenge for potato growers around the world. In developed countries this prob...
Thomas-Sharma, Sara
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Abdurahman, A.
,
Ali S
,
Andrade-Piedra, J.L.
,
Bao, S.
,
Charkowski A
,
Crook D
,
Kadian, M.
,
Kromann, P.
,
Struik, Paul C.
,
Torquebiau, Emmanuel F.
,
Garrett, K.A.
,
Forbes, G.
,
[Seed degeneration in potato: the need for an integrated seed health strategy to mitigate the problem in developing countries]
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Seed degeneration in potato: the need for an integrated seed health strategy to mitigate the problem in developing countries
Weather affects the severity of many plant diseases, and climate change is likely to alter the patterns of crop disease severity. Evaluating possible future patterns can help focus crop breeding and disease management research. We examined the global effect of climate change on potato late blight...
Sparks, Adam H.
,
Forbes, G.
,
Hijmans R.J.
,
Garrett, K.A.
,
[Climate change may have limited effect on global risk of potato late blight]
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Climate change may have limited effect on global risk of potato late blight
Climate change has a number of observed, anticipated, or possible consequences on crop health worldwide. Global change, on the other hand, incorporates a number of drivers of change, including global population increase, natural resource evolution, and supply demand shifts in markets, from local ...
Savary, S.
,
Nelson, A.
,
Sparks, Adam H.
,
Willocquet, L.
,
Duveiller, E.
,
Mahuku, George S.
,
Forbes, G.
,
Garrett, K.A.
,
Hodson, D.
,
Padgham, J.
,
Pande, S.
,
Sharma, M.
,
Yuen, J.
,
Djurle, A.
,
[International agricultural research tackling the effects of global and climate changes on plant diseases in the developing world]
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International agricultural research tackling the effects of global and climate changes on plant diseases in the developing world
Process-based ecological models used to assess organisms' responses to environmental conditions often need input data at a high temporal resolution, e.g., hourly or daily weather data. Such input data may not be available at a high spatial resolution for large areas, limiting opportunities to use...
Sparks, Adam H.
,
Forbes, G.
,
Hijmans R.J.
,
Garrett, K.A.
,
[A metamodeling framework for extending the application domain of process-based ecological models]
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A metamodeling framework for extending the application domain of process-based ecological models
The impacts of climate change on ecosystem services are complex in the sense that effective prediction requires consideration of a wide range of factors. Useful analysis of climate-change impacts on crops and native plant systems will often require consideration of the wide array of other biota t...
Garrett, K.A.
,
Forbes, G.
,
Savary S
,
Skelsey P
,
Sparks, Adam H.
,
Valdivia, C.
,
Bruggen, A.H.C. van
,
Willocquet, L.
,
Djurle, A.
,
Duveiller, E.
,
Eckersten, H.
,
Pande, S.
,
Vera Cruz, C.
,
Yuen J
,
[Complexity in climate-change impacts: an analytical framework for effects mediated by plant disease]
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Complexity in climate-change impacts: an analytical framework for effects mediated by plant disease