Russian wheat aphid Diuraphis noxia (Mordvilko): population dynamics and effect on grain yield in the western Orange Free State
Kriel, C.F, Hewitt, P.H, Van der Westhuizen, M.C, Walters, M.C
Published in Journal of the Entomological Society of Southern Africa (01.10.1986)
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Published in Journal of the Entomological Society of Southern Africa (01.10.1986)
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Aspects of the ecology of the Russian wheat aphid, Diuraphis noxia, in the Bloemfontein district. I. The colonization and infestation of sown wheat, identification of summer hosts and cause of infestation symptoms
Hewitt, P.H, Van Niekerk, G.J.J, Walters, M.C, Kriel, C.F, Fouche, A
Published in Technical communication - South Africa, Department of Agriculture (1984)
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Published in Technical communication - South Africa, Department of Agriculture (1984)
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