Submitted to: Journal of Entomological Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 4/20/2006
Publication Date: 4/1/2007
Citation: Gossey, H.B., Lenssen, A.W., Johnson, G.D., Blodgett, S.L., Carlson, G.R., Kephart, K.D. 2007. Evaluation of durum spring wheat susceptibility to wheat stem sawfly (hymenoptera: cephidae)infestation of spring durum. Journal of Entomological Science. 42:133-138.
Interpretive Summary: The wheat stem sawfly is the most important insect pest of spring and winter wheat in the northern Great Plains. Rotation to non-host crops should decrease infestation of susceptible wheats. Infestation potential of currently grown spring durum cultivars to wheat stem sawfly was tested in field trials in 1998 and 1999. All thirteen spring durum cultivars tested were hosts for wheat stem sawfly, but infestation levels were lower in cultivars "Lloyd", "Plenty", and "Sceptre", offering potential as rotational crops for improved management of wheat stem sawfly.
Technical Abstract: The wheat stem sawfly, Cephus cinctus Norton, is the primary arthropod pest of wheat, Triticum aestivum, in the Northern Great Plains. Rotation to non-host crops should decrease infestation of susceptible spring or winter wheats. Information is unavailable on wheat stem sawfly infestation potential of currently grown spring durum cultivars. Field trials were conducted in 1998 and 1999 to determine wheat stem sawfly susceptibility of thirteen spring durum cultivars and one hard red spring wheat. Pre-harvest infestations ranged from 2 to 55 percent. Post-harvest larval infestations of stubble ranged from 1 to 9.5 percent. Three durum cultivars "Lloyd", "Plenty", and "Sceptre" appear to offer potential, as a rotational crop, for management of wheat stem sawfly.