James P. Legg

7.5k total citations · 1 hit paper
140 papers, 5.0k citations indexed

About

James P. Legg is a scholar working on Plant Science, Insect Science and Public Health, Environmental and Occupational Health. According to data from OpenAlex, James P. Legg has authored 140 papers receiving a total of 5.0k indexed citations (citations by other indexed papers that have themselves been cited), including 129 papers in Plant Science, 57 papers in Insect Science and 17 papers in Public Health, Environmental and Occupational Health. Recurrent topics in James P. Legg's work include Plant Virus Research Studies (83 papers), Insect-Plant Interactions and Control (55 papers) and Nematode management and characterization studies (52 papers). James P. Legg is often cited by papers focused on Plant Virus Research Studies (83 papers), Insect-Plant Interactions and Control (55 papers) and Nematode management and characterization studies (52 papers). James P. Legg collaborates with scholars based in Tanzania, Uganda and United Kingdom. James P. Legg's co-authors include J. M. Thresh, Carmelo Rapisarda, Everlyne N. Wosula, Joseph Ndunguru, C. M. Fauquet, Geoffrey Okao-Okuja, Peter Sseruwagi, Edward Kanju, Milan Milenovic and M. N. Maruthi and has published in prestigious journals such as Science, PLoS ONE and Journal of Virology.

In The Last Decade

James P. Legg

133 papers receiving 4.7k 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.

Impact of Host Plant Species and Whitefly Species on Feeding Behavior of Bemisia tabaci

2019 301 citations Everlyne N. Wosula, James P. Legg et al. profile →

Peers

James P. Legg

PS

IS

MB

ACS

PHEOH

P. Lava Kumar Nigeria

M. J. Jeger United Kingdom

T. Satyanarayana United States

J. M. Thresh United Kingdom

Laetitia Willocquet France

Titus Alicai Uganda

Michael Jeger United Kingdom

Pamela K. Anderson Colombia

T. R. Gottwald United States

N. McRoberts United States

P. Lava Kumar Nigeria

James P. Legg

2.9k ×0.6

PS

1.3k ×0.8

IS

1.3k ×3.0

MB

127 ×0.4

ACS

105 ×0.4

PHEOH

Citations per year, relative to James P. Legg James P. Legg (= 1×) peers P. Lava Kumar

Countries citing papers authored by James P. Legg

Since Specialization

Citations

This map shows the geographic impact of James P. Legg'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 James P. Legg with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites James P. Legg more than expected).

Fields of papers citing papers by James P. Legg

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James P. Legg. 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 James P. Legg. The network helps show where James P. Legg may publish in the future.

Co-authorship network of co-authors of James P. Legg

This figure shows the co-authorship network connecting the top 25 collaborators of James P. Legg. A scholar is included among the top collaborators of James P. Legg 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 James P. Legg. James P. Legg 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

1.

Okonya, Joshua Sikhu, et al.. (2025). Pathogen and pest communities in agroecosystems across climate gradients: Anticipating future challenges in the highland tropics. Agricultural Systems. 233. 104619–104619.

2.

Wosula, Everlyne N., et al.. (2024). Occurrence and Distribution of Major Cassava Pests and Diseases in Cultivated Cassava Varieties in Western Kenya. Viruses. 16(9). 1469–1469. 2 indexed citations

3.

Legg, James P., et al.. (2024). Comparing fresh root yield and quality of certified and farmer-saved cassava seed. Crop Protection. 187. 106932–106932. 5 indexed citations

4.

Grieve, Bruce, Siobain Duffy, José Trinidad Ascencio‐Ibáñez, et al.. (2024). Early Detection of Plant Virus Infection Using Multispectral Imaging and Machine Learning. 1 indexed citations

5.

Chikoti, Patrick Chiza, et al.. (2024). First report of the severe Uganda variant of East African cassava mosaic virus in Zambia. New Disease Reports. 49(1). 1 indexed citations

6.

Shakir, Sara, James P. Legg, Placide Rukundo, et al.. (2024). Breeding strategies for mitigating cassava brown streak disease in Africa. Lirias (KU Leuven). 3(1). 0–0.

7.

Wosula, Everlyne N., et al.. (2023). Cutting Dipping Application of Flupyradifurone against Cassava Whiteflies Bemisia tabaci and Impact on Its Parasitism in Cassava. Insects. 14(10). 796–796. 7 indexed citations

8.

Wosula, Everlyne N., Clare Hoskins, David M. Buss, et al.. (2023). Efficacy of selected botanical oils against the cassava whitefly (Bemisia tabaci) and their effects on its feeding behaviour. Journal of Applied Entomology. 147(7). 473–485. 6 indexed citations

9.

Okonya, Joshua Sikhu, et al.. (2023). Influence of altitude as a proxy for temperature on key Musa pests and diseases in watershed areas of Burundi and Rwanda. Heliyon. 9(3). e13854–e13854. 9 indexed citations

10.

Wosula, Everlyne N., et al.. (2022). Diversity and Distribution of Whiteflies Colonizing Cassava in Eastern Democratic Republic of Congo. Insects. 13(9). 849–849. 5 indexed citations

11.

Xing, Yanru, John Fredy Hernández Nopsa, K. F. Andersen, et al.. (2020). Global Cropland Connectivity: A Risk Factor for Invasion and Saturation by Emerging Pathogens and Pests. BioScience. 70(9). 744–758. 31 indexed citations

12.

Naveed, Zunaira Afzal, et al.. (2019). Abstracts of Presentations at the 2019 APS Southern Division Meeting (Part I). Phytopathology. 109(9S). S1.1–S1.13. 1 indexed citations

13.

Okonya, Joshua Sikhu, et al.. (2019). Farmer Reported Pest and Disease Impacts on Root, Tuber, and Banana Crops and Livelihoods in Rwanda and Burundi. Sustainability. 11(6). 1592–1592. 38 indexed citations

14.

Okonya, Joshua Sikhu, Netsayi Mudege, Anne M. Rietveld, et al.. (2019). The Role of Women in Production and Management of RTB Crops in Rwanda and Burundi: Do Men Decide, and Women Work?. Sustainability. 11(16). 4304–4304. 13 indexed citations

15.

Thomas‐Sharma, Sara, Jorge Andrade-Piedra, John Fredy Hernández Nopsa, et al.. (2017). A Risk Assessment Framework for Seed Degeneration: Informing an Integrated Seed Health Strategy for Vegetatively Propagated Crops. Phytopathology. 107(10). 1123–1135. 50 indexed citations

16.

Maruthi, M. N., S. Jeremiah, Ibrahim Umar Mohammed, & James P. Legg. (2017). The role of the whitefly, Bemisia tabaci (Gennadius), and farmer practices in the spread of cassava brown streak ipomoviruses. Journal of Phytopathology. 165(11-12). 707–717. 65 indexed citations

17.

Kumar, P. Lava, et al.. (2016). The Prevalence of Cassava Mosaic Begomoviruses in Malawi. International journal of research in social sciences. 6(1). 70–87.

18.

Legg, James P., P. Lava Kumar, T. Makeshkumar, et al.. (2014). Cassava Virus Diseases. Advances in virus research. 91. 85–142. 181 indexed citations

19.

Legg, James P., et al.. (2005). Farmers' knowledge on virus diseases of cassava in coastal Kenya. 7. 1449–1451. 4 indexed citations

20.

Legg, James P.. (1994). Bemisia tabaci : the whitefly vector of cassava mosaic geminiviruses in Africa: an ecological perspective. TSpace. 2(4). 437–448. 31 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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