Section 8
Chapter 7,921

The occurrence of trogoderma coleoptera dermestidae and related species in southern africa with special reference to trogoderma granarium and its potential to become established

Viljoen, J.H.

Journal of Stored Products Research 26(1): 43-52


ISSN/ISBN: 0022-474X
Accession: 007920228

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The history of Trogoderma granarium in South Africa, Zimbabwe and Zambia is reviewed. Particular attention is given to the occurrence of this species in South Africa and the climate at or near localities where the pest was previously fouund. The first South African records of other species of Trogoderma and Pharadonoma are also reported. Climatic criteria considered by previous workers as indicative of a suitable climate for the establishment of T. granarium were used to predict the potential range of this species in southern Africa. Parts of the nothern Cape Province, Namibia and Botswana have a climate well-suited for the establishment of T. granarium. An established infestation occurred within the delimited area in 1972, but has since disappeared from the region. Possible contributing factors for this outcome, which was a repetition of ealier events in Zambia and Zimbabwe are suggested. The southermost boundary of possible distribution of T. granarium in South Africa is also drawn and it was found that the major grain production areas of the Republic lie outside the potential range of this pest.

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