Opender Koul

5.2k total citations · 2 hit papers
78 papers, 3.7k citations indexed

About

Opender Koul is a scholar working on Plant Science, Insect Science and Molecular Biology. According to data from OpenAlex, Opender Koul has authored 78 papers receiving a total of 3.7k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Plant Science, 52 papers in Insect Science and 28 papers in Molecular Biology. Recurrent topics in Opender Koul's work include Insect Pest Control Strategies (57 papers), Insect and Pesticide Research (30 papers) and Insect-Plant Interactions and Control (14 papers). Opender Koul is often cited by papers focused on Insect Pest Control Strategies (57 papers), Insect and Pesticide Research (30 papers) and Insect-Plant Interactions and Control (14 papers). Opender Koul collaborates with scholars based in India, Thailand and Canada. Opender Koul's co-authors include Murray B. Isman, Suresh Walia, G. S. Dhaliwal, A. Luczyński, G.H.N. Towers, Donald E. Champagne, G. G. E. Scudder, Rajwinder Singh, Gurmeet Singh and Vasakorn Bullangpoti and has published in prestigious journals such as Nature, Journal of Agricultural and Food Chemistry and Scientific Reports.

In The Last Decade

Opender Koul

78 papers receiving 3.3k 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.

Essential oils as green pesticides potential and constraints

2008 661 citations Opender Koul, Suresh Walia et al. profile →
Insecticidal and antifeedant bioactivities of neem oils and their relationship to azadirachtin content

1990 401 citations Murray B. Isman, Opender Koul et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Opender Koul India	32	3.0k	1.8k	1.2k	780	236	78	3.7k
Cláudio Augusto Gomes da Câmara Brazil	26	1.6k 0.5×	810 0.5×	388 0.3×	873 1.1×	285 1.2×	129	2.1k
Kandaswamy Kalaivani India	32	2.1k 0.7×	1.4k 0.8×	883 0.7×	333 0.4×	100 0.4×	55	2.6k
Junheon Kim South Korea	28	1.7k 0.6×	955 0.5×	327 0.3×	721 0.9×	102 0.4×	104	2.3k
James A. Klocke United States	25	1.2k 0.4×	591 0.3×	901 0.7×	358 0.5×	129 0.5×	45	2.2k
Chantal Menut France	31	2.3k 0.8×	412 0.2×	974 0.8×	2.0k 2.6×	490 2.1×	205	3.6k
Luís G. Pedro Portugal	32	3.0k 1.0×	363 0.2×	1.3k 1.0×	3.0k 3.8×	276 1.2×	123	4.5k
Catherine Régnault-Roger France	24	2.6k 0.9×	1.4k 0.8×	382 0.3×	969 1.2×	58 0.2×	53	3.0k
Antônio Euzébio Goulart Santana Brazil	23	845 0.3×	480 0.3×	547 0.4×	265 0.3×	161 0.7×	120	1.9k
Wilber Lwande Kenya	23	1.4k 0.5×	793 0.4×	425 0.3×	455 0.6×	48 0.2×	73	1.9k
Sen‐Sung Cheng Taiwan	15	1.2k 0.4×	461 0.3×	426 0.3×	870 1.1×	103 0.4×	23	1.8k

Countries citing papers authored by Opender Koul

Since Specialization

Citations

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

Fields of papers citing papers by Opender Koul

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Opender Koul. 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 Opender Koul. The network helps show where Opender Koul may publish in the future.

Co-authorship network of co-authors of Opender Koul

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

All Works

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20 of 20 papers shown

Koul, Opender, et al.. (2025). Effect of isolated compounds from Combretum trifoliatum on toxicity and detoxification enzymes in Nilaparvata lugens. Scientific Reports. 15(1). 27–27. 2 indexed citations

Pluempanupat, Wanchai, et al.. (2017). Toxicity and repellent action of Coffea arabica against Tribolium castaneum (Herbst) adults under laboratory conditions. Journal of Stored Products Research. 71. 112–118. 16 indexed citations

Stevenson, Philip C., Opender Koul, & M. J. Pascual‐Villalobos. (2017). The 2 nd International Conference on Pesticidal Plants (ICPP2). Industrial Crops and Products. 110. 1–1. 1 indexed citations

Koul, Opender. (2012). Microbial biopesticides: opportunities and challenges.. CABI Reviews. 1–26. 39 indexed citations

Pluempanupat, Wanchai, et al.. (2012). Laboratory evaluation of Dalbergia oliveri (Fabaceae: Fabales) extracts and isolated isoflavonoids on Aedes aegypti (Diptera: Culicidae) mosquitoes. Industrial Crops and Products. 44. 653–658. 31 indexed citations

Koul, Opender, et al.. (2012). Biorational glycol diesters as dietary toxins versus bioefficacy of sucrose octanoate against lepidopteran larvae. Industrial Crops and Products. 40. 151–159. 1 indexed citations

Pluempanupat, Wanchai, et al.. (2011). Bioefficacy of Alpinia galanga (Zingiberaceae) Rhizome Extracts, (E)-p-Acetoxycinnamyl Alcohol, and (E)-p-Coumaryl Alcohol Ethyl Ether Against Bactrocera dorsalis (Diptera: Tephritidae) and the Impact on Detoxification Enzyme Activities. Journal of Economic Entomology. 104(5). 1534–1540. 29 indexed citations

Singh, Rajwinder, Opender Koul, & Pushpinder J. Rup. (2010). Effect of some essential oil compounds on the oviposition and feeding behavior of the Asian armyworm, Spodoptera litura F. (Lepidoptera: Noctuidae).. 6(1). 52–66. 3 indexed citations

Koul, Opender & Suresh Walia. (2009). Comparing impacts of plant extracts and pure allelochemicals and implications for pest control.. CABI Reviews. 1–30. 105 indexed citations

10.

Koul, Opender, et al.. (2008). Essential oils as green pesticides potential and constraints. 661 indexed citations breakdown →

11.

Singh, Gurmeet, Pushpinder J. Rup, & Opender Koul. (2007). Acute, sublethal and combination effects of azadirachtin andBacillus thuringiensistoxins onHelicoverpa armigera(Lepidoptera: Noctuidae) larvae. Bulletin of Entomological Research. 97(4). 351–357. 36 indexed citations

12.

Koul, Opender, et al.. (2004). Bioefficacy and mode-of-action of some limonoids of salannin group fromAzadirachta indica A. Juss and their role in a multicomponent system against lepidopteran larvae. Journal of Biosciences. 29(4). 409–416. 106 indexed citations

13.

Koul, Opender & G. S. Dhaliwal. (2003). Predators and parasitoids: an introduction.. 1–15. 4 indexed citations

14.

Koul, Opender & G. S. Dhaliwal. (2001). Microbial biopesticides: an introduction.. 1–11. 1 indexed citations

15.

Koul, Opender, et al.. (1995). Resistance to Insects in Selective Ecotypes of Cymbopogon pendulus (Nees Ex Steud) Wats. Pesticide Research Journal. 7(2). 132–139. 1 indexed citations

16.

Koul, Opender & R. S. Kapil. (1994). RH-5849, a nonsteroidal ecdysone agonist, does not mimic makisterone-A inDysdercus koenigii. Cellular and Molecular Life Sciences. 50(5). 461–464. 4 indexed citations

17.

Champagne, Donald E., Opender Koul, Murray B. Isman, G. G. E. Scudder, & G.H.N. Towers. (1992). Biological activity of limonoids from the rutales. Phytochemistry. 31(2). 377–394. 365 indexed citations

18.

Isman, Murray B., et al.. (1991). DEVELOPING A NEEM-BASED INSECTICIDE FOR CANADA. Memoirs of the Entomological Society of Canada. 123(S159). 39–46. 31 indexed citations

19.

Koul, Opender, Michael J. Smirle, & Murray B. Isman. (1990). Asarones fromAcorus calamus L. Oil. Journal of Chemical Ecology. 16(6). 1911–1920. 74 indexed citations

20.

MacLeod, John K., Peter Möeller, Tadeusz F. Molinski, & Opender Koul. (1990). Antifeedant activity againstSpodoptera litera larvae and [13C]NMR spectral assignments of the meliatoxins. Journal of Chemical Ecology. 16(8). 2511–2518. 19 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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