The predacious Coccinellidae associated with the wheat aphid, Schizaphis graminum (Rond.) in the Orange Free State

Brown, Hubert Dick (1969)

Thesis (DSc) -- University of Stellenbosch, 1969.

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Thesis

Please refer to this item in SUNScholar by using the following persistent URL: http://hdl.handle.net/10019.1/67770
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