This study quantified crop losses and economic impacts associated with papaya mealybug (Paracoccus marginatus) infestation in Kenya and identified the most important predictors of papaya tree (Carica papaya L.) yield losses through a household survey of 404 farmers. At least 95% male and 88% female ...
Author(s)
Kansiime, M. K.; Rwomushana, I.; Mugambi, I.; Makale, F.; Lamontagne-Godwin, J.; Chacha, D.; Kibwage, P.; Oluyali, J.; Day, R.
Publisher
Taylor & Francis, Abingdon, UK
Citation
International Journal of Pest Management, 2023, 69, 2, pp 150-163
Invasive species have historically been a problem derived from global trade and transport. To aid in the control and management of these species, species distribution models (SDMs) have been used to help predict possible areas of expansion. Our focal organism, the African Armyworm (AAW), has...
Author(s)
Gómez-Undiano, I.; Musavi, F.; Mushobozi, W. L.; David, G. M.; Day, R.; Early, R.; Wilson, K.
Publisher
Nature Publishing Group, London, UK
Citation
Scientific Reports, 2022, 12, 9,
Invasive alien species (IAS) rank among the most significant drivers of species extinction and ecosystem degradation resulting in significant impacts on socio-economic development. The recent exponential spread of IAS in most of Africa is attributed to poor border biosecurity due to porous borders...
Author(s)
Mulema, J.; Day, R.; Nunda, W.; Akutse, K. S.; Bruce, A. Y.; Gachamba, S.; Haukeland, S.; Kahuthia-Gathu, R.; Kibet, S.; Koech, A.; Kosiom, T.; Miano, D. W.; Momanyi, G.; Murungi, L. K.; Muthomi, J. W.; Mwangi, J.; Mwangi, M.; Mwendo, N.; Nderitu, J. H.; Nyasani, J.; Otipa, M.; Wambugu, S.; Were, E.; Makale, F.; Doughty, L.; Edgington, S.; Rwomushana, I.; Kenis, M.
Publisher
Springer, Amsterdam, Netherlands
Citation
Biological Invasions, 2022, 24, 9, pp 2933-2949
Deploying maize varieties with fall armyworm (Spodoptera frugiperda [J.E. Smith]; FAW) resistance, desirable product profiles (PPs) and climate resilience is fundamental for food and economic security in sub-Saharan Africa (SSA). This study reviewed and identified challenges and opportunities for...
Author(s)
Matova, P. M.; Kamutando, C. N.; Warburton, M. L.; Williams, W. P.; Magorokosho, C.; Shimelis, H.; Labuschagne, M.; Day, R.; Gowda, M.
Publisher
Wiley, Berlin, Germany
Citation
Plant Breeding, 2022, 142, 1, pp 1-11
This paper summarises institutional and policy bottlenecks to IPM in Africa. Agricultural policy in Africa generally prioritises production and productivity above environmental sustainability, so the use of synthetic pesticides for controlling pests is encouraged. Funding for research in IPM is...
Author(s)
Day, R.; Haggblade, S.; Moephuli, S.; Mwang'ombe, A.; Nouala, S.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Current Opinion in Insect Science, 2022, 52,
Background: Invasive species affect the social, economic and health aspects of many farmers and are known to cause major losses with considerable costs spent on management. Several international agreements recognise the threat caused by invasive species which signatories have an obligation to...
Author(s)
Williams, F.; Constantine, K. L.; Ali, A. A.; Karanja, T. W.; Kibet, S.; Lingeera, E. K.; Muthike, G.; Rwomushana, I.; Godwin, J.; Day, R.
Publisher
BioMed Central Ltd, London, UK
Citation
CABI Agriculture and Bioscience, 2021, 2, 42,
In response to the threat caused by the fall armyworm to African maize farmers, we conducted a series of field release studies with the egg parasitoid Telenomus remus in Ghana. Three releases of ≈15,000 individuals each were conducted in maize plots of 0.5 ha each in the major and minor rainy...
Author(s)
Agboyi, L. K.; Layodé, B. F. R.; Fening, K. O.; Beseh, P.; Clottey, V. A.; Day, R.; Kenis, M.; Babendreier, D.
Publisher
MDPI AG, Basel, Switzerland
Citation
Insects, 2021, 12, 8,
The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is a highly polyphagous plant pest that can severely impact yields of several agricultural crops. Understanding the economic impact and management thresholds for FAW across a variety of crop commodities is...
Author(s)
Overton, K.; Maino, J. L.; Day, R.; Umina, P. A.; Bett, B.; Carnovale, D.; Ekesi, S.; Meagher, R.; Reynolds, O. L.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Crop Protection, 2021, 145,
Currently, maize (Zea mays L.) production is under threat from climate change, drought, and pests such as fall armyworm (FAW) [Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)]. Since its first detection outside of its native range in 2016, FAW has spread into 76 nations across Africa...
Author(s)
Singh, G. M.; Xu JianChu; Schaefer, D.; Day, R.; Wang ZhenYing; Zhang Feng
Publisher
Crop Science Society of America, Madison, USA
Citation
Crop Science, 2021, 62, 1, pp 1-19
BACKGROUND: Forecasting the spread of emerging pests is widely requested by pest management agencies in order to prioritise and target efforts. Two widely used approaches are statistical Species Distribution Models (SDMs) and CLIMEX, which uses ecophysiological parameters. Each have strengths and...
Author(s)
Early, R.; Rwomushana, I.; Chipabika, G.; Day, R.
Publisher
Wiley, Chichester, UK
Citation
Pest Management Science, 2021, 78, 2, pp 671-683