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Eric A Beckendorf
Integrated Cropping Systems Research
Biological Science Lab Technician (Insects)

Phone: (605) 693-5202
Fax: (605) 693-5240

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Lady Beetles of Hawai'i - (Other)
Molengraaf, T., Matsunaga, J., Yee, D., Pererria, W., Beckendorf, E.A., Hesler, L.S. 2023. Lady Beetles of Hawai'i [poster]. Edward Enterprises, Inc.
New state, island and prey records for lady beetles (Coleoptera: Coccinellidae) in Hawai‘i - (Abstract Only)
New state, island and prey records from Hawai¿i, U.S.A., and a new country record from Laos for lady beetles (Coleoptera: Coccinellidae) Reprint Icon - (Peer Reviewed Journal)
Hesler, L.S., Perreira, W.D., Matsunaga, J.N., Yee, D.A., Ahmed, M.Z., Beckendorf, E.A. 2023. New state, island and prey records from Hawai'i, U.S.A., and a new country record from Laos for lady beetles (Coleoptera: Coccinellidae). The Pan-Pacific Entomologist. 99(2):128–141. https://doi.org/10.3956/2022-99.2.128.
A new state record of Eucera (Xenoglossa) kansensis (Hymenoptera: Apidae) in South Dakota, USA - (Peer Reviewed Journal)
Hesler, L.S., Beckendorf, E.A., Martens, A.P., Johnson, P.J. 2023. A new state record of Eucera (Xenoglossa) kansensis (Hymenoptera: Apidae) in South Dakota, USA. Insecta Mundi. 0985:1-6. https://centerforsystematicentomology.org/insectamundi/0985_Hesler_etal_2023.pdf.
A baseline inventory of bee species and patterns in their distribution among habitats at the Eastern South Dakota Soil & Water Research Farm - (Abstract Only)
Hesler, L.S., Beckendorf, E.A. 2023. A baseline inventory of bee species and patterns in their distribution among habitats at the Eastern South Dakota Soil & Water Research Farm. Abstract. Monarch and Native Pollinators Summit, Watertown, SD, March 2-3, 2023.
Historical diversity and distribution of bumble bees in South Dakota - (Abstract Only)
Martens, A.P., Johnson, P.J., Beckendorf, E.A., Hesler, L.S., Daniels, J.D., Roeder, K.A. 2023. Historical diversity and distribution of bumble bees in South Dakota. Abstract. Black Hills Botany and Ecology Workshop, Rapid City, SD, March 10, 2023.
Historical diversity and distribution of bumble bees in South Dakota - (Abstract Only)
Martens, A.P., Johnson, P.J., Beckendorf, E.A., Hesler, L.S., Daniels, J.D., Roeder, K.A. 2023. Historical diversity and distribution of bumble bees in South Dakota. Abstract. Monarch and Native Pollinators Summit, Watertown, SD, March 2-3, 2023.
A revised checklist of South Dakota bumble bees (Hymenoptera, Apidae) Reprint Icon - (Peer Reviewed Journal)
Martens, A.P., Johnson, P.J., Roeder, K.A., Beckendorf, E.A., Daniels, J.D., Hesler, L.S. 2022. A revised checklist of South Dakota bumble bees (Hymenoptera, Apidae). Journal of Hymenoptera Research. 94:271–286. https://doi.org/10.3897/jhr.94.94584.
A new species of Chrysotus Meigen (Diptera: Dolichopodidae) from soybean fields in South Dakota, USA Reprint Icon - (Peer Reviewed Journal)
Runyon, J.B., Beckendorf, E.A., Hesler, L.S. 2022. A new species of Chrysotus Meigen (Diptera: Dolichopodidae) from soybean fields in South Dakota, USA. ZooKeys. 1135:171–180. https://doi.org/10.3897/zookeys.1135.95026.
Declining abundance of Coccinellidae (Coleoptera) among crop and prairie habitats of eastern South Dakota, USA Reprint Icon - (Peer Reviewed Journal)
Hesler, L.S., Beckendorf, E.A. 2021. Declining abundance of Coccinellidae (Coleoptera) among crop and prairie habitats of eastern South Dakota, USA. Frontiers in Conservation Science. 2. Article 742036. https://doi.org/10.3389/fcosc.2021.742036.
Challenges and prospects of wild soybean as a resistance source against soybean aphid (Hemiptera: Aphididae) Reprint Icon - (Literature Review)
Hesler, L.S., Tilmon, K.J., Varenhorst, A.J., Conzemius, S.R., Taliercio, E.W., Beckendorf, E.A. 2021. Challenges and prospects of wild soybean as a resistance source against soybean aphid (Hemiptera: Aphididae). Annals of the Entomological Society of America. 115:25-38. https://doi.org/10.1093/aesa/saab033.
Soybean aphid infestation and crop yield in relation to cultivar, foliar insecticide, and insecticidal seed treatment in South Dakota Reprint Icon - (Peer Reviewed Journal)
Hesler, L.S., Beckendorf, E.A. 2021. Soybean aphid infestation and crop yield in relation to cultivar, foliar insecticide, and insecticidal seed treatment in South Dakota. Phytoparasitica. 49:971-981. https://doi.org/10.1007/s12600-021-00914-y.
New records document Cystiphora sonchi (Vallot) (Diptera: Cecidomyiidae) and associated parasitoids (Hymenoptera) in the continental United States - (Peer Reviewed Journal)
Hesler, L.S., Gates, M.W., Beckendorf, E.A. 2020. New records document Cystiphora sonchi (Vallot) (Diptera: Cecidomyiidae) and associated parasitoids (Hymenoptera) in the continental United States. Insecta Mundi. 0815:1-8. https://journals.flvc.org/mundi/article/view/127291.
Soybean aphids per plant among soybean lines containing various rag genes - (Other)
Hesler, L.S., Beckendorf, E.A. 2020. Soybean aphids per plant among soybean lines containing various rag genes. Ag Data Commons. Ag Data Commons.
Resistance to soybean aphid in selected wild soybean accessions, 2018-2019 Reprint Icon - (Other)
Hesler, L.S., Beckendorf, E.A., Taliercio, E.W. 2019. Resistance to soybean aphid in selected wild soybean accessions, 2018-2019. Arthropod Management Tests. 44: tsz078. https://doi.org/10.1093/amt/tsz078.
Laboratory evaluation of soybean plant introductions for resistance to Aphis glycines (Hemiptera: Aphididae) Reprint Icon - (Peer Reviewed Journal)
Hesler, L.S., Schultz, N.R., Van De Stroet, B.M., Beckendorf, E.A., Tilmon, K.J. 2017. Laboratory evaluation of soybean plant introductions for resistance to Aphis glycines (Hemiptera: Aphididae). Journal of Agricultural and Urban Entomology. 33:135-141.
Resistance to soybean aphid in early maturing plant introduction lines of soybean, 2012-2015 Reprint Icon - (Other)
Hesler, L.S., Beckendorf, E.A., Tilmon, K.J., Burkard Schultz, N., Van De Stroet, B.M., Rozeboom, P.A. 2017. Resistance to soybean aphid in early maturing plant introduction lines of soybean, 2012-2015. Arthropod Management Tests. 42(1): tsx112. https://doi.org/10.1093/amt/tsx112.
Newly identified resistance to soybean aphid (Aphis glycines) in soybean plant introduction lines - (Abstract Only)
Hesler, L.S., Schultz, N., Van De Stroet, B., Beckendorf, E.A., Tilmon, K. 2017. Newly identified resistance to soybean aphid (Aphis glycines) in soybean plant introduction lines. North Central Branch Meeting, Entomological Society of America, Indianapolis, IN, June 6, 2017. Available: esa.confex.com/esa/2017ncb/meetingapp.cgi/Paper/120683.
SOYBEAN.APHID.SD.2017 - (Other)
Hesler, L.S., Beckendorf, E.A., Tilmon, K., Burkard, N., Van De Stroet, B., Rozeboom, P. 2017. SOYBEAN.APHID.SD.2017. Germplasm Resources Information Network (GRIN). Available: npgsweb.ars-grin.gov/gringlobal/method.aspx?id=495901.
The effect of flowering calendula and cuphea plants on Orius insidiosus survival and predation of Aphis glycines - (Peer Reviewed Journal)
Nemec, K.T., Beckendorf, E.A., Hesler, L.S., Riedell, W.E., Lundgren, J.G. 2015. The effect of flowering calendula and cuphea plants on Orius insidiosus survival and predation of Aphis glycines. Biocontrol Science and Technology. 26: 12-22. doi: 10.1080/09583157.2015.1072130.
Relationships between soybean shoot nitrogen components and soybean aphid populations - (Peer Reviewed Journal)
Riedell, W.E., Beckendorf, E.A., Catangui, M.A. 2013. Relationships between soybean shoot nitrogen components and soybean aphid populations. Arthropod-Plant Interactions. 7:667-676.
Soybean aphid injury effects on shoot N components in Glycine max - (Peer Reviewed Journal)
Riedell, W.E., Beckendorf, E.A., Catangui, M.A. 2013. Soybean aphid injury effects on shoot N components in Glycine max. Crop Science. 53:232-239. doi: 10.2135/cropsci2012.05.0286.
Method for continuously rearing Coccinella lady beetles (Coleoptera: Coccinellidae) - (Peer Reviewed Journal)
Hesler, L.S., Mcnickle, G., Catangui, M.A., Losey, J.E., Beckendorf, E.A., Stallwag, L., Brandt, D.M., Bartlett, P.B. 2012. Method for continuously rearing Coccinella lady beetles (Coleoptera: Coccinellidae). The Open Entomology Journal. 37:M2.
Ladybugs of Maine - (Experiment Station)
Alyokhin, A., Donahue, C., Majka, C., Chandler, D., Hanley, G., Molengraaf, T., Beckendorf, E.A., Hesler, L.S. 2011. Ladybugs of Maine. Poster; Maine Ag & Forestry Experiment Station series.
Ladybugs of South Dakota, 2nd edition - (Experiment Station)
Hesler, L.S., Catangui, M.A., Beckendorf, E.A., Molengraaf, T.L., Hanley, G.A., Kiekchefer, R.W. 2010. Ladybugs of South Dakota, 2nd edition. South Dakota Ag Experiment Station publication ES365.
Developing Metrics for Managing Soybean Aphids - (Review Article)
Catangui, M.A., Beckendorf, E.A., Riedell, W.E. 2010. Developing Metrics for Managing Soybean Aphids. Crops and Soils. 43:21-30.
Reply to: Comment on “Soybean Aphid Population Dynamics, Soybean Yield Loss, and Development of Stage-Specific Economic Injury Levels” by M.A. Catangui, E.A. Beckendorf, and W.E. Riedell, Agron. J. 101:1080-1092 (2009) - (Other)
Catangui, M.A., Beckendorf, E.A., Riedell, W.E. 2009. Reply to: Comment on “Soybean Aphid Population Dynamics, Soybean Yield Loss, and Development of Stage-Specific Economic Injury Levels” by M.A. Catangui, E.A. Beckendorf, and W.E. Riedell, Agron. J. 101:1080-1092 (2009). Agronomy Journal. 102:56-58.
Ladybugs of South Dakota - (Experiment Station)
Hesler, L.S., Beckendorf, E.A., Hanley, G.A., Catangui, M.A., Kieckhefer, R. 2009. Ladybugs of South Dakota. Publication ES 365 (poster), South Dakota Agricultural Experiment Station.
Soybean Aphid Population Dynamics, Soybean Yield Loss and Development of Stage-Specific Economic Injury Levels - (Peer Reviewed Journal)
Catangui, M.A., Beckendorf, E.A., Riedell, W.E. 2009. Soybean Aphid Population Dynamics, Soybean Yield Loss, and Development of Stage-Specific Economic Injury Levels. Agronomy Journal. 101:1080-1092.
Dylan and Jamie and the Lost Ladybug Project - (Popular Publication)
Beckendorf, E.A., Massey, S. 2009. Dylan and Jamie and the Lost Ladybug Project. The Lost Ladybug Project. Available: www.lostladybug.org/learning.php.
Nitrogen Fixation, Ureide, and Nitrate Accumulation Responses to Soybean Aphid Injury in Glycine max - (Peer Reviewed Journal)
Riedell, W.E., Catangui, M.A., Beckendorf, E.A. 2009. Nitrogen Fixation, Ureide, and Nitrate Accumulation Responses to Soybean Aphid Injury in Glycine max. Journal of Plant Nutrition. 32:1674-1686.
Soybean Aphid Feeding Injury and Soybean Yield and Seed Composition - (Peer Reviewed Journal)
Beckendorf, E.A., M.A. Catangui, W.E. Riedell. 2008. Soybean Aphid Feeding Injury and Soybean Yield and Seed Composition. P. 17-21. In: B. Erickson (ed.) Crops and Soils, Summer 2008. www.agronomy.org.
Soybean Aphid Feeding Injury and Soybean Yield, Yield Components, and Seed Composition - (Peer Reviewed Journal)
Beckendorf, E.A., Catangui, M.A., Riedell, W.E. 2008. Soybean Aphid Feeding Injury and Soybean Yield, Yield Components, and Seed Composition. Agron. J. 100:237-246.
PRELIMINARY RESULTS OF CHINESE SOYBEAN APHID EXPERIMENTS - (Popular Publication)
RIEDELL, W.E., CATANGUI, M., BECKENDORF, E.A. PRELIMINARY RESULTS OF CHINESE SOYBEAN APHID EXPERIMENTS. South Dakota State University Extension Entomology website. 2003.