Predator Abundance in Alfalfa Fields in Relation to Aphids, Within-Field Vegetation, and Landscape Matrix von Elliott, N. C, Kieckhefer, R. W, Michels Jr, G. J, Giles, K. L

Volltext

Influence of within-field and landscape factors on aphid predator populations in wheat von ELLIOTT, N. C, KIECKHEFER, R. W, LEE, J.-H, FRENCH, B. W

Volltext

Winter wheat responses to bird cherry-oat aphids and barley yellow dwarf virus infection von Riedell, W.E, Kieckhefer, R.W, Haley, S.D, Langham, M.A.C, Evenson, P.D

Volltext

Response by coccinellids to spatial variation in cereal aphid density von Elliott, N., Kieckhefer, R. W.

Volltext

Effect of aphids and the surrounding landscape on the abundance of Coccinellidae in cornfields von Elliott, N.C, Kieckhefer, R.W, Beck, D.A

Volltext

Yield losses in maturing spring wheat caused by cereal aphids (Homoptera: Aphididae) under laboratory conditions von VOSS, T. S, KIECKHEFER, R. W, FULLER, B. W, MCLEOD, M. J, BECK, D. A

Volltext

Sequential sampling for adult coccinellids in wheat von Elliot, N.C, Michels, G.J. Jr, Kieckhefer, R.W, French, B.W

Volltext

Effect of fluctuating temperatures on development of immature Russian wheat aphid (Homoptera: Aphididae) and demographic statistics von Kieckhefer, R.W, Elliott, N.C

Volltext

Aphidophagous Coccinellids in Alfalfa, Small Grains, and Maize in Eastern South Dakota von Kieckhefer, R. W, Elliott, N. C, Beck, D. A

Volltext

Dynamics of aphidophagous coccinellid assemblages in small grain fields in eastern South Dakota von Elliott, N.C. (USDA, ARS, SPA, Plant Science and Water Conservation Research Laboratory, Stillwater, OK), Kieckhefer, R.W

Volltext

Yield losses in winter grains caused by cereal aphids (Homoptera: Aphididae) in South Dakota von Kieckhefer, R.W, Kantack, B.H

Volltext

Binomial sequential sampling methods for cereal aphids in small grains von Elliott, N.C. (Northern Grain Insects Research Laboratory, USDA-ARS, Brookings, SD), Kieckhefer, R.W, Walgenbach, D.D

Volltext

Adult Coccinellid Activity and Predation on Aphids in Spring Cereals von Elliott, N.C., Kieckhefer, R.W., Beck, D.A.

Volltext

Resistance to Rhopalosiphum padi (Homoptera: Aphididae) in wheat germplasm accessions von Hesler, L.S, Riedell, W.E, Kieckhefer, R.W, Haley, S.D, Collins, R.D

Volltext

Effects of constant and fluctuating temperatures on developmental rates and demographic statistics for the corn leaf aphid (Homoptera: Aphididae) von ELLIOTT, N. C, KIECKHEFER, R. W, WALGENBACH, D. D

Volltext

Effects of constant and fluctuating temperatures on developmental rates and demographic statistics of the English grain aphid (Homoptera: Aphididae) von Kieckhefer, R.W. (Northern Grain Insects Research Laboratory, USDA, ARS, Brookings, SD), Elliott, N.C, Walgenbach, D.D

Volltext

Spatial distributions of cereal aphids (Homoptera: Aphididae) in winter wheat and spring oats in South Dakota von Elliott, N.C, Kieckhefer, R.W

Volltext

Cereal aphid (Homoptera:Aphididae) preferences for and reproduction on some warm-season grasses [Macrosiphum (Sitobion) avenae, Rhopalosiphum padi, Schizaphis graminum, Rhopalosiph... von Kieckhefer, R.W

Volltext

Cereal aphid populations in winter wheat: spatial distributions and sampling with fixed levels of precision von Elliott, N.C, Kieckhefer, R.W

Volltext

A comparison of size, sex ratio, and dispersal in three coccinellids von Elliott, N.C. (USDA, ARS, SPA, Plant Science and Water Conservation Research Laboratory, Stillwater, OK.), Kieckhefer, R.W, French, B.W, Lee, J.H

Volltext