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United States Department of Agriculture

Agricultural Research Service

Related Topics

Richard T Olsen
Office of The Director
General Biological Science

Phone: (301) 245-4539
Fax: (202) 245-4575
Room 134

U.S. NATIONAL ARBORETUM
3501 NEW YORK AVE., N.E.
ADMINISTRATION
WASHINGTON , DC 200021958
Projects
Agreement Between The United States National Arbortum and the Friends of the National Arboretum
Non-Funded Cooperative Agreement (N)
  Accession Number: 428691
Developing Blight-Resistant Boxwood Germplasm
Non-Assistance Cooperative Agreement (S)
  Accession Number: 423742

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Test of a natural enemy hypothesis on plant community provenance: parasitoids collected from turf of native and exotic ornamental landscapes -
Test of a natural enemy hypothesis on plant provenance: Spider abundance in native and exotic ornamental landscapes -
Biological control of sentinel egg masses of the exotic invasive stink bug halyomorpha halys (Stål) in Mid-Atlantic USA ornamental landscapes Reprint Icon -
Cornelius, M.L., Dieckhoff, C., Hoelmer, K.A., Olsen, R.T., Weber, D.C., Herlihy, M.V., Talamas, E.J., Vinyard, B.T., Greenstone, M.H. 2016. Biological control of sentinel egg masses of the exotic invasive stink bug halyomorpha halys (Stål) in Mid-Atlantic USA ornamental landscapes. Biological Control. 103:11-20.
Genetic relationships of boxwood (Buxus L.) accessions based on genic simple sequence repeat markers -
Thammina, C., Olsen, R.T., Kramer, M.H., Pooler, M.R. 2016. Evaluation of genetic diversity and relatedness of boxwood accessions using genic simple Ssquence repeat markers. Journal of the American Society for Horticultural Science. DOI 10.1007/s10722-016-0436-6.
Use of mycelium and detached leaves in bioassays for assessing resistance to boxwood blight -
Guo, Y.H., Olsen, R.T., Kramer, M.H., Pooler, M.R. 2016. Use of mycelium and detached leaves in bioassays for assessing resistance to boxwood blight. Plant Disease. 100:1622-2626.
Your U.S. National Arboretum: A not so hidden gem -
Evaluating boxwood (Buxus spp.) susceptibility to Calonectria pseudonaviculata by inoculating cuttings from the National Boxwood Collection at the U.S. National Arboretum -
Shishkoff, N., Daughtrey, M.L., Olsen, R.T., Aker, S.M. 2015. Evaluating boxwood (Buxus spp.) susceptibility to Calonectria pseudonaviculata by inoculating cuttings from the National Boxwood Collection at the U.S. National Arboretum. Plant Health Progress. 16:11-15.
Effective bioassays for evaluating boxwood blight (Calonectria pseudonaviculata) susceptibility using detached stem inoculations -
Guo, Y., Olsen, R.T., Kramer, M.H., Pooler, M.R. 2015. Effective bioassays for evaluating boxwood blight (Calonectria pseudonaviculata) susceptibility using detached stem inoculations. HortScience. 50(2):268-271.
Development of polymorphic genic-SSR markers by cDNA library sequencing in boxwood, Buxus spp. (Buxaceae) -
Thammina, C., Olsen, R.T., Wight-Malapi, M., Crouch, J., Pooler, M.R. 2014. Development of polymorphic genic-SSR markers by cDNA library sequencing in boxwood, Buxus spp. (Buxaceae). Applications in Plant Sciences. 9(12):1400095.
Asian germplasm in American horticulture: new thoughts on an old theme -
Olsen, R.T. 2014. Asian germplasm in American horticulture: new thoughts on an old theme. HortScience. 48:1073-1077.
In vitro induction of polyploidy in Cercis glabra Pamp -
Nadler, J.D., Pooler, M.R., Olsen, R.T., Coleman, G. 2012. In vitro induction of polyploidy in Cercis glabra Pamp. Scientia Horticulturae. 148:126-130.
Plant breeding for harmony between agriculture and the environment -
Brummer, E., Barber, W.T., Collier, S., Cox, T.S., Johnson, R., Murray, S., Olsen, R.T., Pratt, R., Thro, A. 2012. Plant breeding for harmony between agriculture and the environment. Frontiers in Ecology and the Environment. 9:561-568.
Neotypification of Catalpa speciosa (Bignonioides) -
Kirkbride, J.H., Olsen, R.T. 2011. Neotypification of Catalpa speciosa (Bignonioides). Taxon. 60(6):1760-1763.
Identity of Catalpa tibetica (Bignoniaceae) -
Kirkbride, J.H., Olsen, R.T. 2011. Identity of Catalpa tibetica (Bignoniaceae). Journal of Botanical Research Institute of Texas. 5(2):625-631.
Ulmus americana is a polyploid complex -
Whittemore, A.T., Olsen, R.T. 2011. Ulmus americana is a polyploid complex. Journal of Botanical Research Institute of Texas. 98(4):754-760.
Mycosphaerella nyssicola revisited: characterization of a species distinct from M. punctiformis -
Minnis, A., Rossman, A.Y., Olsen, R.T. 2011. Mycosphaerella nyssicola revisited: characterization of a species distinct from M. punctiformis. Mycotaxon. 155:311-322.
Sphaerographium nyssicola Minnis, Rossman & D.F. Farr, sp. nov. -
Minnis, A., Rossman, A.Y., Farr, D., Olsen, R.T. 2010. Sphaerographium nyssicola Minnis, Rossman & D.F. Farr, sp. nov. Persoonia: Molecular Phylogeny and Evolution of Fungi. 25:122-123.
Development of simple sequence repeat markers for Chionanthus retusus (Oleaceae) and effective discrimination of closely related taxa -
Arias, R.S., Techen, N., Rinehart, T.A., Olsen, R.T., Kirkbride, J.H., Scheffler, B.E. 2010. Development of simple sequence repeat markers for Chionanthus retusus (Oleaceae) and effective discrimination of closely related taxa. HortScience. 46(1):23-29.
Evaluating fertility of triploid clones of hypericum androsaemum L. for use as non-invasive landscape plants -
Trueblood, C.E., Ranney, T.G., Lynch, N.P., Neal, J.C., Olsen, R.T. 2010. Evaluating fertility of triploid clones of hypericum androsaemum L. for use as non-invasive landscape plants. HortScience. 45:1026-1028.
Validation of the hybrid flowering cherry Prunus xincam Ingram (Rosaceae) Reprint Icon -
Olsen, R.T. and Whittemore, A.T. 2009. Validation of the hybrid flowering cherry Prunus xincam (Rosaceae). Novon. 19:490-493.
Development of SSR markers for Chionanthus retusus (Oleaceae) and effective discrimination of closely related taxa -
Arias, R.S., Techen, N., Rinehart, T.A., Olsen, R.T., Kirkbride, J.H., Scheffler, B.E. 2009. Development of SSR markers for Chionanthus retusus (Oleaceae) and effective discrimination of closely related taxa. American Society of Horticulture Science Meeting, July 24-28, 2008, St. Louis, MO. meeting Prodeedings. 44(4):1007.
Evaluation of flowering cherry (Prunus L.) species, hybrids, and cultivars using SSR markers Reprint Icon -
Ma, H., Olsen, R., Pooler, M, Kramer, Matthew. 2009. Evaluation of Flowering Cherry Species, Hybrids, and Cultivars Using Simple Sequence Repeat Markers. Journal of the American Society for Horticultural Science. 134:435-444.
Evaluation of Hemlock (Tsuga)Species and Hybrids for Resistance to Adelges tsugae (Hemiptera:Adelgidae) Using Artificial Infestation -
Montgomery, M.E., Bentz, S.E., Olsen, R.T. 2009. Evaluation of hemlock (Tsuga) species and hybrids for resistance to Adelges tsugae (Hemiptera: Adelgidae) using artificial inoculation. Journal of Economic Entomology. 102:1247-1254.
Evaluation of a 15-year-old Carolina silverbell provenance trial -
Olsen, R.T. 2009. Evaluation of a 15-year-old Carolina silverbell provenance trial. Proceedings of the 53rd Annual Southern Nursery Association Research Conference. 53:181-185.
Gene banks offer breeders access to germplasm: Germplasm collections help to preserve genetic diversity -
Robbins, J., Widrlechner, M.P., Olsen, R.T., Reed, S.M., Meerow, A.W., Hummer, K.E., Bretting, P.K., Allenstein, P., Krautmann, M. 2008. Gene banks offer breeders access to germplasm: Germplasm collections help to preserve genetic diversity. Nursery Management and Production. 24(5):53-58.
Resistance of Hemlock species and hybrids to Hemlock woolly Adelgid -
Bentz, S.E., Montgomery, M.E., Olsen, R.T. 2008. Resistance of hemlock species and hybrids to hemlock woolly adelgid. Fouth Symposium on Hemlock Woolly Adelgid in the Eastern United States, 12-14 February 2008.
Prunus x sieboldii -
Olsen, R.T., 2008. Prunus x Sieboldii. 2008. American Journeyman. vol 207-66.
POLYPOID BREEDING IN HYPERICUM ANDROSAEMUM L -
Olsen, R.T., and Ranney, T.G. 2006. Polyploid breeding in Hypericum androsaemum L. HortScience. 41:952.
ARS News Articles
Last Modified: 08/21/2017
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