The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
agriculture
insecticide resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,917
6,788
0.325
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Plant disease epidemiology
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,798
4,095
0.297
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Plant and fungal virology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,435
1,670
0.260
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Agrirculture
Environment
Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,160
2,274
0.547
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Agriculture and the Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,226
2,126
0.659
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Microfluidics
Biodetection
Aquaculture
Environmental Monitoring
Agri-Tech
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,287
1,418
0.620
* Total Citation Counts Rankings
Ranking Based On Selection: 7
agricultura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
352
161
0.457
Ian Denholm
University of Hertfordshire
Hatfield, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,917
6,788
0.325
agriculture
insecticide resistance
Bruce Fitt
University of Hertfordshire
Hatfield, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,798
4,095
0.297
Plant disease epidemiology
climate change
Robert Coutts
University of Hertfordshire
Hatfield, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,435
1,670
0.260
Kathy LEWIS
University of Hertfordshire
Hatfield, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,160
2,274
0.547
John Tzilivakis
University of Hertfordshire
Hatfield, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,226
2,126
0.659
Ian Johnston
University of Hertfordshire
Hatfield, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,287
1,418
0.620
Microfluidics
Biodetection
Aquaculture
Environmental Monitoring
Agri-Tech
Elena García
University of Hertfordshire
Hatfield, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
352
161
0.457