TY - JOUR

T1 - Local and regional drivers of the African coffee white stem borer (Monochamus leuconotus) in Uganda

AU - Liebig, Theresa

AU - Babin, Régis

AU - Ribeyre, Fabienne

AU - Läderach, Peter

AU - van Asten, Piet

AU - Poehling, Hans Michael

AU - Jassogne, Laurence

AU - Cilas, Christian

AU - Avelino, Jacques

N1 - Funding information: This research was supported by the German Federal Ministry for Economic Cooperation and Development (BMZ). We acknowledge the CGIAR Fund Council, Australia (ACIAR), Irish Aid, European Union, International Fund for Agricultural Development (IFAD), Netherlands, New Zealand, Switzerland, U.K., USAID and Thailand for funding the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS). We would like to thank Wilberforce Wodada, Eric Rahn, David Mukasa, Dr Myles Fisher and Dr Jeninah Karungi for their contributions. Special thanks go to the participating farmers for providing their fields for this research. We applied the FLAE (first-last-author-emphasis) and SDC (sequence-determines-credit) approach when determining the order of appearance for the authors.

PY - 2018/10/3

Y1 - 2018/10/3

N2 - The African coffee white stem borer (CWSB) Monochamus leuconotus is a destructive pest of Arabica coffee in Africa. Documentation on outbreaks, spatiotemporal development and the relationship with different environmental conditions and coffee production system is limited. To underpin effective control measures, we studied aspects of local and regional pest drivers in Eastern Uganda. At the local scale, we (i) characterized the temporal development of CWSB and explored associations with environmental and shade-related indicators. During two growing seasons and on 84 coffee plots, we recorded CWSB incidence/infestation and microclimate on an altitudinal gradient and different shading systems. The bimodal rainfall, altitude and shade affected CWSB development through their effect on minimum temperature. At the landscape level, we (ii) analyzed the spatial pattern of CWSB. Data on CWSB were collected on 180 plots. Pest incidence showed a spatial arrangement varying by districts. A possible relationship with human movement and the landscape context contributing to pest spread is suggested. CWSB control measures should be synchronized with the bimodal rainfall patterns and an emphasis should be given to identifying and limiting pathways of pest spread from highly infested to new areas.

AB - The African coffee white stem borer (CWSB) Monochamus leuconotus is a destructive pest of Arabica coffee in Africa. Documentation on outbreaks, spatiotemporal development and the relationship with different environmental conditions and coffee production system is limited. To underpin effective control measures, we studied aspects of local and regional pest drivers in Eastern Uganda. At the local scale, we (i) characterized the temporal development of CWSB and explored associations with environmental and shade-related indicators. During two growing seasons and on 84 coffee plots, we recorded CWSB incidence/infestation and microclimate on an altitudinal gradient and different shading systems. The bimodal rainfall, altitude and shade affected CWSB development through their effect on minimum temperature. At the landscape level, we (ii) analyzed the spatial pattern of CWSB. Data on CWSB were collected on 180 plots. Pest incidence showed a spatial arrangement varying by districts. A possible relationship with human movement and the landscape context contributing to pest spread is suggested. CWSB control measures should be synchronized with the bimodal rainfall patterns and an emphasis should be given to identifying and limiting pathways of pest spread from highly infested to new areas.

KW - Arabica coffee

KW - climate change

KW - microclimate

KW - Monochamus leuconotus

KW - shade-grown coffee

KW - spatial autocorrelation

UR - http://www.scopus.com/inward/record.url?scp=85045447001&partnerID=8YFLogxK

U2 - 10.1111/afe.12284

DO - 10.1111/afe.12284

M3 - Article

AN - SCOPUS:85045447001

VL - 20

SP - 514

EP - 522

JO - Agricultural and Forest Entomology

JF - Agricultural and Forest Entomology

SN - 1461-9555

IS - 4

ER -