by Tomczyk, A, Nielsen, D.G
Published in Acta horticulturae (01.12.1994)

by Nielsen, D.G, Dunlap, M.J
Published in Annals of the Entomological Society of America (1981)

by Dix M.E, Tagestad A.D, Nielsen D.G, Purrington F.F
Published in USDA Forest Service Research Note RM (USA). no. 358 (1978)

by Hall, R.W. (The Ohio State University, Columbus, OH), Nielsen, D.G, Young, C.E, Hamerski, M.R
Published in Journal of environmental horticulture (01.06.1990)

by Nielsen, D.G, Niemczyk, H.D, Balderston, C.P, Purrington, F.F
Published in Journal of economic entomology (1975)

by Beckingham, John D. (John David), Nielsen, D. G, Futoransky, V. A
Year of Publication 1996

by Montogomery, M.E, Musick, G.J, Polivka, J.B, Nielsen, D.G
Published in Journal of economic entomology (1979)

by Eager, T.A, Berisford, C.W, Dalusky, M.J, Nielsen, D.G, Brewer, J.W, Hilty, S.J, Haack, R.A
Published in Journal of economic entomology (01.04.2004)

by Nielsen, D.G, Cowles, R.S
Published in Journal of environmental horticulture (01.12.1998)

by Nielsen D.G
Published in Journal of arboriculture (1990)

by Nielsen D.G
Published in Journal of arboriculture (1989)

by Nielsen, D.G
Published in Bulletin / Ohio Cooperative Extension Service, Ohio State University (USA) (1989)

by Nielsen, D.G
Year of Publication 1989

by Nielsen, D.G
Published in Journal of arboriculture (USA) (01.11.1986)

by Nielsen, D.G
Published in Journal of Arboriculture (USA) (01.01.1983)

by Nielsen D.G
Published in Grounds Maintenance (1978)

by Nielsen D.G
Published in American Nurseryman (1978)

by Nielsen, D.G.
Published in Insecticide and acaricide tests (01.01.1978)

by Nielsen D.G
Published in Journal of Arboriculture (1976)

by Nielsen, D.G
Published in Weeds, trees & turf (1976)