Ralph E. Berry

2.0k total citations
82 papers, 1.5k citations indexed

About

Ralph E. Berry is a scholar working on Insect Science, Plant Science and Molecular Biology. According to data from OpenAlex, Ralph E. Berry has authored 82 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Insect Science, 46 papers in Plant Science and 25 papers in Molecular Biology. Recurrent topics in Ralph E. Berry's work include Insect-Plant Interactions and Control (36 papers), Insect Resistance and Genetics (24 papers) and Insect and Pesticide Research (21 papers). Ralph E. Berry is often cited by papers focused on Insect-Plant Interactions and Control (36 papers), Insect Resistance and Genetics (24 papers) and Insect and Pesticide Research (21 papers). Ralph E. Berry collaborates with scholars based in United States, Switzerland and Italy. Ralph E. Berry's co-authors include J. Liu, L. C. Terriere, S.J. Yu, Michael S. Blouin, Jie Liu, B. A. Croft, G. L. Reed, James P. Boland, Jie Liu and G. W. Krantz and has published in prestigious journals such as New England Journal of Medicine, Contemporary Sociology A Journal of Reviews and Annual Review of Entomology.

In The Last Decade

Ralph E. Berry

78 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ralph E. Berry United States 25 998 883 597 204 204 82 1.5k
Trevor Lewis United States 12 723 0.7× 640 0.7× 135 0.2× 334 1.6× 89 0.4× 27 1.4k
Allan J. Hruska United States 13 390 0.4× 651 0.7× 350 0.6× 80 0.4× 44 0.2× 18 1.1k
Lynette J. McLeod Australia 14 111 0.1× 1.4k 1.6× 96 0.2× 129 0.6× 276 1.4× 35 2.1k
J.C. Zadoks Netherlands 26 274 0.3× 2.6k 3.0× 509 0.9× 276 1.4× 160 0.8× 166 3.0k
A. K. Murchie United Kingdom 20 449 0.4× 410 0.5× 165 0.3× 431 2.1× 127 0.6× 69 1.0k
Marco Neira United States 16 311 0.3× 177 0.2× 159 0.3× 72 0.4× 74 0.4× 25 1.1k
Alberto Pantoja United States 12 579 0.6× 404 0.5× 157 0.3× 593 2.9× 110 0.5× 66 1.2k
Shisheng Yang China 7 126 0.1× 852 1.0× 236 0.4× 196 1.0× 107 0.5× 17 1.3k
José Iannacone‍ Peru 15 208 0.2× 194 0.2× 78 0.1× 84 0.4× 574 2.8× 386 1.3k
Gabriel O. Dida Kenya 21 115 0.1× 281 0.3× 110 0.2× 61 0.3× 165 0.8× 41 1.3k

Countries citing papers authored by Ralph E. Berry

Since Specialization
Citations

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

Fields of papers citing papers by Ralph E. Berry

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralph E. Berry. 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 Ralph E. Berry. The network helps show where Ralph E. Berry may publish in the future.

Co-authorship network of co-authors of Ralph E. Berry

This figure shows the co-authorship network connecting the top 25 collaborators of Ralph E. Berry. A scholar is included among the top collaborators of Ralph E. Berry 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 Ralph E. Berry. Ralph E. Berry is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hunter, Molly E., Sujaya Rao, Ralph E. Berry, et al.. (2003). XIII International Entomophagous Insects Workshop. Journal of Insect Science. 3(33). 1–30. 1 indexed citations
2.
Liu, Jie, Ralph E. Berry, & Michael S. Blouin. (2001). Identification of Symbiotic Bacteria (Photorhabdus and Xenorhabdus) from the Entomopathogenic Nematodes Heterorhabditis marelatus and Steinernema oregonense Based on 16S rDNA Sequence. Journal of Invertebrate Pathology. 77(2). 87–91. 24 indexed citations
3.
Alderman, S. C., et al.. (2001). Association of Insects and Ergot (<I>Claviceps purpurea</I>) in Kentucky Bluegrass Seed Production Fields. Journal of Economic Entomology. 94(6). 1471–1476. 17 indexed citations
4.
Blouin, Michael S., Jie Liu, & Ralph E. Berry. (1999). Life cycle variation and the genetic structure of nematode populations. Heredity. 83(3). 253–259. 82 indexed citations
5.
Liu, Jing, Ralph E. Berry, & Michael S. Blouin. (1999). Molecular Differentiation and Phylogeny of Entomopathogenic Nematodes (Rhabditida: Heterorhabditidae) Based on ND4 Gene Sequences of Mitochondrial DNA. Journal of Parasitology. 85(4). 709–709. 32 indexed citations
6.
Liu, J., Ralph E. Berry, George O. Poinar, & Andrew R. Moldenke. (1997). Phylogeny of Photorhabdus and Xenorhabdus Species and Strains as Determined by Comparison of Partial 16S rRNA Gene Sequences. International Journal of Systematic Bacteriology. 47(4). 948–951. 35 indexed citations
7.
Berry, Ralph E., J. Liu, & G. L. Reed. (1997). Comparison of Endemic and Exotic Entomopathogenic Nematode Species for Control of Colorado Potato Beetle (Coleoptera: Chrysomelidae). Journal of Economic Entomology. 90(6). 1528–1533. 25 indexed citations
8.
Liu, Jie & Ralph E. Berry. (1996). Phylogenetie analysis of the genus Steinernema by morphologieal eharaeters and randomly anlplified polymorphie DNA fragments (1). Fundamental & applied nematology. 19(5). 463–469. 16 indexed citations
9.
Berry, Ralph E., et al.. (1996). Steinernema oregonensis n. sp. ( Rhabditida : Steinernematidae ) from Oregon, USA. Fundamental & applied nematology. 19(4). 375–380. 27 indexed citations
10.
Liu, Jie & Ralph E. Berry. (1996). Heterorhabditis marelatusn. sp. (Rhabditida: Heterorhabditidae) from Oregon. Journal of Invertebrate Pathology. 67(1). 48–54. 45 indexed citations
11.
Liu, J. & Ralph E. Berry. (1995). Determination of PCR Conditions for RAPD Analysis in Entomopathogenic Nematodes (Rhabditida: Heterorhabditidae and Steinernematidae). Journal of Invertebrate Pathology. 65(1). 79–81. 15 indexed citations
12.
Berry, Ralph E., et al.. (1994). Feeding Activity of Green Peach Aphid (Homoptera: Aphididae) on Transgenic Potato Expressing a Bacillus thuringiensis ssp. tenebrionis B-Endotoxin Gene. Journal of Economic Entomology. 87(3). 618–622. 12 indexed citations
13.
Joseph, Gladwin, et al.. (1993). Effects of nitrogen and Douglas-fir allelochemicals on development of the gypsy moth,Lymantria dispar. Journal of Chemical Ecology. 19(6). 1245–1263. 25 indexed citations
14.
Larson, Katherine C. & Ralph E. Berry. (1984). Influence of Peppermint Phenolics and Monoterpenes on Twospotted Spider Mite (Acari: Tetranychidae). Environmental Entomology. 13(1). 282–285. 25 indexed citations
15.
Larson, Katherine C., et al.. (1982). Effects of Spider Mite1Injury on Transpiration and Leaf Water Status in Peppermint2. Environmental Entomology. 11(4). 975–978. 38 indexed citations
16.
Berry, Ralph E., et al.. (1975). A check list and notes on the birds of Sandvis, South West Africa. 1975(2). 5–18. 9 indexed citations
17.
Berry, Ralph E.. (1975). Redbacked Cutworm Control on Peppermint with Leptophos12. Journal of Economic Entomology. 68(3). 411–412. 1 indexed citations
18.
Berry, Ralph E.. (1974). Cost and efficiency in the production of hospital services.. PubMed. 52(3). 291–313. 21 indexed citations
19.
Berry, Ralph E., et al.. (1974). The status of the Jackass penguin Spheniscus demersus on Halifax Island off South West Africa. 1974. 27–29. 7 indexed citations
20.
Berry, Ralph E.. (1969). Effects of Temperature and Light on Dispersal of the Pea Aphid, Acyrthosiphon pisum,1 and a Braconid Parasite, Aphidius pisivorus,2 in the Field3. Annals of the Entomological Society of America. 62(5). 1185–1189. 5 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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