P. H. Westigard

1.2k total citations
69 papers, 888 citations indexed

About

P. H. Westigard is a scholar working on Insect Science, Plant Science and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, P. H. Westigard has authored 69 papers receiving a total of 888 indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Insect Science, 34 papers in Plant Science and 18 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in P. H. Westigard's work include Insect-Plant Interactions and Control (50 papers), Insect and Pesticide Research (25 papers) and Plant Physiology and Cultivation Studies (20 papers). P. H. Westigard is often cited by papers focused on Insect-Plant Interactions and Control (50 papers), Insect and Pesticide Research (25 papers) and Plant Physiology and Cultivation Studies (20 papers). P. H. Westigard collaborates with scholars based in United States. P. H. Westigard's co-authors include S. C. Hoyt, B. A. Croft, J. Lindsey Flexner, H. R. Moffitt, Larry J. Gut, Everett Burts, William J. Liss, P. B. Lombard, R. J. Hilton and Helmut Riedl and has published in prestigious journals such as Annual Review of Entomology, Environmental Management and Crop Protection.

In The Last Decade

P. H. Westigard

66 papers receiving 751 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P. H. Westigard United States 20 796 389 284 148 107 69 888
William E. Chaney United States 15 396 0.5× 331 0.9× 200 0.7× 78 0.5× 89 0.8× 30 568
Angela K. Grant United States 12 321 0.4× 307 0.8× 122 0.4× 59 0.4× 109 1.0× 17 524
L. A. Andres United States 11 331 0.4× 204 0.5× 119 0.4× 76 0.5× 47 0.4× 33 436
Mun Il Ryoo South Korea 15 389 0.5× 316 0.8× 181 0.6× 61 0.4× 95 0.9× 38 590
R. A. Byers United States 13 196 0.2× 238 0.6× 111 0.4× 63 0.4× 88 0.8× 45 452
Casey D. Butler United States 14 412 0.5× 444 1.1× 117 0.4× 57 0.4× 53 0.5× 19 610
Bernd Freier Germany 11 354 0.4× 273 0.7× 162 0.6× 67 0.5× 57 0.5× 74 469
D. P. Peschken Canada 15 280 0.4× 284 0.7× 149 0.5× 99 0.7× 45 0.4× 36 438
Phillip Glogoza United States 8 529 0.7× 403 1.0× 224 0.8× 29 0.2× 110 1.0× 19 660
R. C. Berberet United States 14 415 0.5× 354 0.9× 172 0.6× 85 0.6× 73 0.7× 68 606

Countries citing papers authored by P. H. Westigard

Since Specialization
Citations

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

Fields of papers citing papers by P. H. Westigard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P. H. Westigard

This figure shows the co-authorship network connecting the top 25 collaborators of P. H. Westigard. A scholar is included among the top collaborators of P. H. Westigard 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 P. H. Westigard. P. H. Westigard 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.
Hilton, R. J., et al.. (2002). FIVE YEARS OF MATING DISRUPTION IN COMBINATION WITH NARROW-RANGE PETROLEUM SPRAY OIL TO CONTROL PEAR PEST IN SOUTHERN OREGON. Acta Horticulturae. 501–505. 2 indexed citations
2.
Hilton, R. J., et al.. (1998). CONTROL OF SECONDARY PESTS IN A SELECTIVE PEST MANAGEMENT PROGRAM. Acta Horticulturae. 479–486. 3 indexed citations
3.
Flexner, J. Lindsey, P. H. Westigard, R. J. Hilton, & B. A. Croft. (1995). Experimental Evaluation of Resistance Management for Twospotted Spider Mite (Acari: Tetranychidae) on Southern Oregon Pear: 1987–1993. Journal of Economic Entomology. 88(6). 1517–1524. 23 indexed citations
4.
Riedl, Helmut, et al.. (1995). Laboratory Evaluation of Mineral Oils for Control of Codling Moth (Lepidoptera: Tortricidae). Journal of Economic Entomology. 88(1). 140–147. 31 indexed citations
5.
Hilton, R. J., Helmut Riedl, & P. H. Westigard. (1992). Phytotoxicity Response of Pear to Application of Abamectin-Oil Combinations. HortScience. 27(12). 1280–1282. 1 indexed citations
6.
Gut, Larry J., William J. Liss, & P. H. Westigard. (1991). Arthropod community organization and development in pear. Environmental Management. 15(1). 83–104. 2 indexed citations
7.
Šugar, D., Timothy L. Righetti, & P. H. Westigard. (1989). Relationship Between Densities of Pear Psylla and Twospotted Spider Mite and Pear Leaf Nutrient Levels. HortScience. 24(2). 242–245. 1 indexed citations
8.
Westigard, P. H. & Larry J. Gut. (1986). Codling Moth (Lepidoptera: Tortricidae) Control on Pears with Modified Programs Using Insect Growth Regulators. Journal of Economic Entomology. 79(1). 247–249. 1 indexed citations
9.
Follett, Peter A., B. A. Croft, & P. H. Westigard. (1985). REGIONAL RESISTANCE TO INSECTICIDES IN PSYLLA PYRICOLA FROM PEAR ORCHARDS IN OREGON. The Canadian Entomologist. 117(5). 565–573. 29 indexed citations
10.
Westigard, P. H. & H. R. Moffitt. (1984). Natural Control of the Pear Psylla (Homoptera: Psyllidae): Impact of Mating Disruption with the Sex Pheromone for Control of the Codling Moth (Lepidoptera: Tortricidae). Journal of Economic Entomology. 77(6). 1520–1523. 13 indexed citations
11.
Westigard, P. H., et al.. (1982). Effect of Nitrogen and Daminozide on Shoot Growth for Pear Psylla Suppression and on ‘Bartlett’ Pear Performance1. HortScience. 17(4). 668–669. 3 indexed citations
12.
Riedl, Helmut, et al.. (1981). Problems with chemical control of pear psylla.. California Agriculture. 35(9). 7–9. 16 indexed citations
13.
Westigard, P. H., R. B. Allen, & Larry J. Gut. (1981). Pear Psylla: Relationship of Early-Season Nymph Densities to Honeydew-Induced Fruit Damage on Two Pear Cultivars13. Journal of Economic Entomology. 74(5). 532–534. 6 indexed citations
14.
Westigard, P. H., P. B. Lombard, & R. B. Allen. (1979). Effects of Overtree Irrigation on Density and Damage of Pear Pests2. Journal of Economic Entomology. 72(6). 839–840. 3 indexed citations
15.
Westigard, P. H., et al.. (1974). Reduction of Pesticide Deposits on Pear Following Overtree Irrigation1. HortScience. 9(1). 34–35.
16.
Westigard, P. H., et al.. (1972). The pear psylla in Oregon. 28 indexed citations
17.
Westigard, P. H. & Lyle D. Calvin. (1971). ESTIMATING MITE POPULATIONS IN SOUTHERN OREGON PEAR ORCHARDS. The Canadian Entomologist. 103(1). 67–71. 5 indexed citations
18.
Westigard, P. H., et al.. (1968). Present Status of Biological Control of the Pear Psylla in Southern Oregon1. Journal of Economic Entomology. 61(3). 740–743. 35 indexed citations
19.
Lombard, P. B., et al.. (1966). Overhead Sprinkler System for Environmental Control and Pesticide Application in Pear Orchards. HortScience. 1(3-4). 95–96. 10 indexed citations
20.
Westigard, P. H. & H Madsen. (1963). Pear psylla: In abandoned orchards. California Agriculture. 17(1). 6–9. 2 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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