T. H. A. Olthof

434 total citations
19 papers, 334 citations indexed

About

T. H. A. Olthof is a scholar working on Plant Science, Agronomy and Crop Science and Food Science. According to data from OpenAlex, T. H. A. Olthof has authored 19 papers receiving a total of 334 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Plant Science, 3 papers in Agronomy and Crop Science and 3 papers in Food Science. Recurrent topics in T. H. A. Olthof's work include Nematode management and characterization studies (14 papers), Agronomic Practices and Intercropping Systems (3 papers) and Plant Disease Management Techniques (3 papers). T. H. A. Olthof is often cited by papers focused on Nematode management and characterization studies (14 papers), Agronomic Practices and Intercropping Systems (3 papers) and Plant Disease Management Techniques (3 papers). T. H. A. Olthof collaborates with scholars based in Canada. T. H. A. Olthof's co-authors include K. R. Barker, E. A. C. Hagley, J. W. Potter, KA Evans, J. Webster, D. L. Trudgill, Brian D. McGarvey, J. L. Townshend, V. A. Dirks and R. E. C. Layne and has published in prestigious journals such as Journal of Agricultural and Food Chemistry, Annual Review of Phytopathology and Phytopathology.

In The Last Decade

T. H. A. Olthof

15 papers receiving 217 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
T. H. A. Olthof Canada	8	321	57	45	20	18	19	334
Th. H. A. Olthof Canada	14	328 1.0×	98 1.7×	33 0.7×	24 1.2×	31 1.7×	30	349
J. R. Rich United States	11	318 1.0×	74 1.3×	34 0.8×	12 0.6×	19 1.1×	46	332
V. D. Luedders United States	12	325 1.0×	24 0.4×	61 1.4×	7 0.3×	10 0.6×	28	343
R. K. Walia India	7	243 0.8×	55 1.0×	18 0.4×	17 0.8×	16 0.9×	48	276
M. Mor Israel	7	300 0.9×	76 1.3×	17 0.4×	19 0.9×	19 1.1×	18	312
B. B. Singh United States	9	218 0.7×	29 0.5×	20 0.4×	6 0.3×	26 1.4×	27	240
David W. Sippell Canada	6	316 1.0×	33 0.6×	52 1.2×	37 1.9×	111 6.2×	9	327
M. C. Black United States	13	502 1.6×	57 1.0×	22 0.5×	64 3.2×	56 3.1×	32	510
JH Nderitu Kenya	10	266 0.8×	62 1.1×	92 2.0×	13 0.7×	27 1.5×	45	293
C. J. D'herde	4	446 1.4×	47 0.8×	42 0.9×	6 0.3×	13 0.7×	5	456

Countries citing papers authored by T. H. A. Olthof

Since Specialization

Citations

This map shows the geographic impact of T. H. A. Olthof'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 T. H. A. Olthof with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. H. A. Olthof more than expected).

Fields of papers citing papers by T. H. A. Olthof

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by T. H. A. Olthof. 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 T. H. A. Olthof. The network helps show where T. H. A. Olthof may publish in the future.

Co-authorship network of co-authors of T. H. A. Olthof

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

All Works

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19 of 19 papers shown

Olthof, T. H. A. & Qing Yu. (1999). Reduction of root-lesion nematodes (Pratylenchuspenetrans) in tubers of potato (Solanumtuberosum) during cold storage. Canadian Journal of Plant Pathology. 21(2). 154–158. 2 indexed citations

Potter, J. W., T. H. A. Olthof, KA Evans, D. L. Trudgill, & J. Webster. (1993). Nematode pests of vegetable crops.. 171–207. 32 indexed citations

Olthof, T. H. A. & E. A. C. Hagley. (1993). Laboratory Studies of the Efficacy of Steinemematid Nematodes Against the Plum Curculio (Coleoptera: Curculionidae). Journal of Economic Entomology. 86(4). 1078–1082. 16 indexed citations

McGarvey, Brian D., T. H. A. Olthof, & J. L. Townshend. (1990). Distribution and persistence of oxamyl in oxamyl-treated seed potatoes and in plants grown from oxamyl-treated seed potatoes. Journal of Agricultural and Food Chemistry. 38(7). 1608–1612. 4 indexed citations

Olthof, T. H. A.. (1986). Reaction of Six Solanum tuberosum Cultivars to Pratylenchus penetrans.. PubMed. 18(1). 54–8. 21 indexed citations

Olthof, T. H. A.. (1986). Damage to an Apple Orchard Cover Crop of Creeping Red Fescue (Festuca rubra) Associated withMeloidogyne microtyla. Plant Disease. 70(5). 436–436. 1 indexed citations

McGarvey, Brian D., Mikio Chiba, & T. H. A. Olthof. (1985). Simplified Cleanup and Liquid Chromatographic Determination of Oxamyl Residues in Potato Tubers. Journal of AOAC INTERNATIONAL. 68(4). 753–756. 1 indexed citations

Potter, J. W., et al.. (1984). Response of Peach Seedlings to Infection by the Root Lesion Nematode Pratylenchus penetrans under Controlled Conditions.. PubMed. 16(3). 317–22. 5 indexed citations

Olthof, T. H. A.. (1982). Effect of Age of Alfalfa Root on Penetration by Pratylenchus penetrans.. PubMed. 14(1). 100–5. 6 indexed citations

10.

Olthof, T. H. A., et al.. (1979). The influence of saprophagous nematodes on the production of Agaricus brunnescens (Bisporus). 1978. 397–405. 2 indexed citations

11.

Olthof, T. H. A.. (1978). Influence of Population Densities of Heterodera schachtii on Sugar Beets Grown in Microplots.. PubMed. 10(3). 255–8. 3 indexed citations

12.

Barker, K. R. & T. H. A. Olthof. (1976). Relationships Between Nematode Population Densities and Crop Responses. Annual Review of Phytopathology. 14(1). 327–353. 114 indexed citations

13.

Olthof, T. H. A.. (1974). Relationship between Population Densities of Heterodera schachtii and Losses in Vegetable Crops in Ontario. Phytopathology. 64(4). 549–549. 7 indexed citations

14.

Olthof, T. H. A.. (1973). The Relationship between Population Densities of Pratylenchus penetrans and Crop Losses in Summer-Maturing Vegetables in Ontario. Phytopathology. 63(5). 577–577. 63 indexed citations

15.

Olthof, T. H. A., et al.. (1972). Plant parasitic nematodes of economic importance in Ontario.. 103. 3–5. 1 indexed citations

16.

Olthof, T. H. A.. (1972). Relationship Between Population Densities of Meloidogyne hapla and Crop Losses in Summer-Maturing Vegetables in Ontario. Phytopathology. 62(9). 981–981. 41 indexed citations

17.

Townshend, J. L. & T. H. A. Olthof. (1967). The sugar beet nematode, Heterodera schachtii, Schmidt, and other plant-parasitic nematodes on rhubarb in Ontario.. 47(1). 14–16. 1 indexed citations

18.

Townshend, J. L., et al.. (1966). Plant-parasitic nematode genera associated with crops in Ontario.. 46(4). 144–145. 1 indexed citations

19.

Olthof, T. H. A., et al.. (1965). The occurrence of nematophagous fungi in Quebec.. Phytoprotection. 46(1). 14–17. 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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