by Nielsen D.G, Terrell L.E, Weidensaul T.C
Published in Plant Disease Reporter (1977)

by Herms, D.A, Nielsen, D.G, Sydnor, T.D
Published in Journal of entomological science (01.01.1988)

by Nielsen, D.G, Dunlap, M.J, Boggs, J.F
Published in Ohio report on research and development in agriculture, home economics, and natural resources (1978)

by Herms, D.A, Nielsen, D.G, Sydnor, T.D
Published in Environmental entomology (01.08.1987)

by Nielsen D.G, Montgomery M.E
Published in Journal of economic entomology (1977)

by Purrington, F.F, Nielsen, D.G
Published in Annals of the Entomological Society of America (1979)

by Walstad, J.D, Nielsen, D.G, Johnson, N.E
Published in Forest Sci (1973)

by Nielsen, D.G, Purrington, F.F, Balderston, C.P
Published in Pesticide news (1973)

by Nielsen, D.G, Purrington, F.F
Published in Journal of chemical ecology (01.03.1980)

by Barry M.W, Nielsen D.G
Published in Annals of the Entomological Society of America (01.01.1984)

by Nielsen, D.G, Balderston, C.P
Published in Journal of economic entomology (01.04.1975)

by Montgomery, M.E, Nielsen, D.G
Published in Entomologia experimentalis et applicata (01.07.1979)

by Nielsen, D.G. (The Ohio State University-OARDC, Wooster, OH)
Published in Journal of arboriculture (01.04.1990)

by Yonce, C.E, Gentry, C.R, Tumlinson, J.H, Doolittle, R.E, Nielsen, D.G
Published in Environmental Entomology (USA) (01.06.1976)

by Akers, R.C, Herms, D.A, Nielsen, D.G
Published in Great Lakes entomologist (01.01.1986)

by Nielsen D.G, Purrington F.F, Tumlinson J.H, Doolittle R.E, Yonce C.E
Published in Environmental Entomology (1975)

by Dix, M.E, Tagestad, A.D, Nielsen, D.G, Purrington, F.F
Published in USDA For Serv Res Note RM U S Rocky Mt For Range Exp Stn (1978)

by Nielsen, D.G, Gilbertson, H, Waite, K, Balderston, C.P
Published in Pesticide news (1971)

by Nielsen, D.G, Purrington, F.F, Tumlinson, J.H, Doolittle, R.E, Yonce, C.E
Published in Environmental entomology (1975)

by Nielsen, D.G. (Ohio Agricultural Research and Development Center, Wooster)
Published in American nurseryman (15.04.1991)