oa Journal of the Entomological Society of Southern Africa - The Russian wheat aphid; Diuraphis noxia (Mordvilko); Population dynamics and effect on grain yield in the western Orange Free State
|Article Title||The Russian wheat aphid; Diuraphis noxia (Mordvilko); Population dynamics and effect on grain yield in the western Orange Free State|
|© Publisher:||Entomological Society of South Africa (ESSA)|
|Journal||Journal of the Entomological Society of Southern Africa|
|Affiliations||1 *Department of Zoology and Entomology, University of the Orange Free State, Bloemfontein. **Winter Rainfall Region, Elsenburg|
|Publication Date||Sep 1986|
|Pages||317 - 335|
|Keyword(s)||Aphid transmitted pathogen, Apterae migration, Diuraphis noxia apterae, Mordvilko, Population dynamics and Russian wheat aphid|
The newly emerged crop was colonized primarily by D. noxia apterae from volunteer wheat. The infestation was spread by apterae migrating from plant to plant. There were indications that wind assisted the process. More persistent infestations caused significant loss in grain yield, particularly if colonization of the flag and second leaf occurred. There was no evidence to suggest that an aphid transmitted pathogen was associated with reductions in yield.
Article metrics loading...