oa Journal of the Entomological Society of Southern Africa - Occurrence in South Africa of a granulosis virus attacking potato tuber moth, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)

Volume 37, Issue 1
  • ISSN : 0013-8789



Larvae of potato tuber moth were exposed to infection by granulosis virus material on potato tubers and tobacco plants. Significant mortalities were generally recorded at the different dosage rates in larvae of all instars on potatoes. Injury to tobacco leaves however, remained at an economically unacceptable level even after virus infection. An electron micrograph of the pathogen confirms its identity as a granulosis virus, similar to a virus which controls tuber moth on a field scale in Australia.

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