Roger Day

4.1k total citations · 3 hit papers
68 papers, 2.7k citations indexed

About

Roger Day is a scholar working on Insect Science, Plant Science and Molecular Biology. According to data from OpenAlex, Roger Day has authored 68 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Insect Science, 35 papers in Plant Science and 24 papers in Molecular Biology. Recurrent topics in Roger Day's work include Insect Resistance and Genetics (24 papers), Insect Pest Control Strategies (19 papers) and Insect-Plant Interactions and Control (19 papers). Roger Day is often cited by papers focused on Insect Resistance and Genetics (24 papers), Insect Pest Control Strategies (19 papers) and Insect-Plant Interactions and Control (19 papers). Roger Day collaborates with scholars based in Kenya, United Kingdom and Switzerland. Roger Day's co-authors include Regan Early, Sean T. Murphy, Pablo González‐Moreno, Melanie Bateman, Noah Phiri, Matthew J.W. Cock, Ivan Rwomushana, Victor Attuquaye Clottey, Birgitta Oppong-Mensah and Julien Lamontagne‐Godwin and has published in prestigious journals such as Science, SHILAP Revista de lepidopterología and The Science of The Total Environment.

In The Last Decade

Roger Day

66 papers receiving 2.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Fall Armyworm: Impacts and Implications for Africa

2017 690 citations Roger Day, Melanie Bateman et al. profile →
Forecasting the global extent of invasion of the cereal pest Spodoptera frugiperda, the fall armyworm

2018 285 citations Regan Early, Pablo González‐Moreno et al. NeoBiota profile →
Global crop impacts, yield losses and action thresholds for fall armyworm (Spodoptera frugiperda): A review

2021 186 citations James L. Maino, Roger Day et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Roger Day Kenya	22	1.6k	1.5k	1.5k	272	252	68	2.7k
Georg Goergen Benin	25	2.4k 1.5×	2.0k 1.4×	1.8k 1.2×	357 1.3×	260 1.0×	91	3.3k
Thierry Brévault France	27	2.1k 1.3×	1.7k 1.1×	1.7k 1.1×	512 1.9×	202 0.8×	116	3.0k
Shelby J. Fleischer United States	29	2.1k 1.4×	1.4k 0.9×	1.6k 1.1×	706 2.6×	365 1.4×	118	3.2k
M. K. Sears Canada	26	1.3k 0.8×	1.5k 1.0×	1.7k 1.2×	294 1.1×	142 0.6×	70	2.6k
Ivan Rwomushana Kenya	21	1.4k 0.9×	689 0.5×	987 0.7×	223 0.8×	259 1.0×	59	1.8k
Arne Witt Kenya	18	808 0.5×	603 0.4×	843 0.6×	216 0.8×	195 0.8×	61	1.6k
Samira A. Mohamed Kenya	30	2.9k 1.8×	691 0.5×	1.6k 1.1×	523 1.9×	461 1.8×	184	3.4k
Steven E. Naranjo United States	38	3.8k 2.4×	2.1k 1.4×	2.7k 1.8×	753 2.8×	308 1.2×	115	4.7k
Mamoudou Sétamou United States	35	2.2k 1.4×	735 0.5×	2.9k 1.9×	422 1.6×	225 0.9×	149	3.7k
Peter C. Ellsworth United States	25	2.0k 1.3×	994 0.7×	1.4k 0.9×	433 1.6×	148 0.6×	110	2.5k

Countries citing papers authored by Roger Day

Since Specialization

Citations

This map shows the geographic impact of Roger Day's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roger Day with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roger Day more than expected).

Fields of papers citing papers by Roger Day

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roger Day. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roger Day. The network helps show where Roger Day may publish in the future.

Co-authorship network of co-authors of Roger Day

This figure shows the co-authorship network connecting the top 25 collaborators of Roger Day. A scholar is included among the top collaborators of Roger Day based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Roger Day. Roger Day is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Beale, Tim, Roger Day, Hannah Fielder, et al.. (2024). Horizon scanning: Tools to identify emerging threats to plant health in a changing world. EPPO Bulletin. 54(S1). 73–88. 5 indexed citations

Bateman, Melanie, et al.. (2024). Strengthening emergency pest prevention, preparedness and response: The potential role of the private sector. Outlook on Agriculture. 53(3). 216–225. 1 indexed citations

Tambo, Justice A., Monica K. Kansiime, Idah Mugambi, et al.. (2023). Economic impacts and management of fall armyworm (Spodoptera frugiperda) in smallholder agriculture: a panel data analysis for Ghana. SHILAP Revista de lepidopterología. 4(1). 11 indexed citations

Day, Roger, et al.. (2022). Institutional and policy bottlenecks to IPM. Current Opinion in Insect Science. 52. 100946–100946. 10 indexed citations

Day, Roger, et al.. (2022). Predicting potential global and future distributions of the African armyworm (Spodoptera exempta) using species distribution models. Scientific Reports. 12(1). 16234–16234. 13 indexed citations

Maino, James L., Roger Day, Sunday Ekesi, et al.. (2021). Regional and seasonal activity predictions for fall armyworm in Australia. SHILAP Revista de lepidopterología. 1. 100010–100010. 52 indexed citations

Buddie, Alan G., Ivan Rwomushana, Lisa Offord, et al.. (2021). First report of the invasive snail Pomacea canaliculata in Kenya. SHILAP Revista de lepidopterología. 2(1). 13 indexed citations

Tambo, Justice A., Monica K. Kansiime, Idah Mugambi, et al.. (2020). Understanding smallholders' responses to fall armyworm (Spodoptera frugiperda) invasion: Evidence from five African countries. The Science of The Total Environment. 740. 140015–140015. 101 indexed citations

Early, Regan, Pablo González‐Moreno, Sean T. Murphy, & Roger Day. (2018). Forecasting the global extent of invasion of the cereal pest Spodoptera frugiperda, the fall armyworm. NeoBiota. 40. 25–50. 285 indexed citations breakdown →

10.

Toepfer, Stefan, et al.. (2018). Communication, information sharing, and advisory services to raise awareness for fall armyworm detection and area-wide management by farmers. Journal of Plant Diseases and Protection. 126(2). 103–106. 16 indexed citations

11.

Cock, Matthew J.W., Roger Day, Hariet L. Hinz, et al.. (2016). The impacts of some classical biological control successes.. CABI Reviews. 1–58. 31 indexed citations

12.

Day, Roger, et al.. (2010). Mainstreaming gender into prevention and management of invasive species. Zenodo (CERN European Organization for Nuclear Research). 7 indexed citations

13.

Nyeko, Philip, et al.. (2007). Spatial distribution of the blue gum chalcid, leptocybe invasa on eucalyptus species in Kenya. Discovery and Innovation. 19. 369–374. 4 indexed citations

14.

Nyeko, Philip, et al.. (2007). Farmers' knowledge and perceptions on management of L. invasa on eucalyptus species in Western Kenya. Discovery and Innovation. 19. 287–293. 1 indexed citations

15.

Nyeko, Philip, et al.. (2007). Farmers' experiences on the blue gum chalcid, leptocybe invasa, infestation on eucalyptus species in East Africa. Discovery and Innovation. 19. 382–388. 1 indexed citations

16.

Rao, M. R., et al.. (2006). The biology of Amphicallia pactolicus (Butler) (Lepidoptera : Arctiidae), a defoliator of Crotalaria species. African Entomology. 14(2). 329–336. 1 indexed citations

17.

Nyeko, Philip, Gareth Edwards‐Jones, & Roger Day. (2002). Honeybee, Apis mellifera (Hymenoptera: Apidae), leaf damage on Alnus species in Uganda: a blessing or curse in agroforestry?. Bulletin of Entomological Research. 92(5). 405–412. 3 indexed citations

18.

Kamunya, S. M., et al.. (1999). Genetic variation and heritability of resistance to Cinara cupressi in Cupressus lusitanica.. JOURNAL OF TROPICAL FOREST SCIENCE. 11(3). 587–598. 1 indexed citations

19.

Kamunya, S. M., et al.. (1997). Variation and inheritance of resistance to cypress aphid, Cinara cupressi Buckton in Cupressus lusitanica Miller. Annals of Applied Biology. 130(1). 27–36. 7 indexed citations

20.

Day, Roger, et al.. (1981). Garden plants valuable to bees.. 4(1-2). 27–30. 13 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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