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The identity of the African pine woolly aphid: a multidisciplinary approach 1
Author(s) -
BLACKMAN R. L.,
WATSON G. W.,
READY P. D.
Publication year - 1995
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.1995.tb01475.x
Subject(s) - pinus radiata , aphid , biology , geography , genus , woody plant , invasive species , botany , introduced species , ecology , forestry
A pine woolly aphid of the genus Pineus was inadvertently introduced to Zimbabwe in 1962, and now damages plantations of exotic pines in eight countries of eastern and southern Africa. Identification of the species and its area of origin were needed to facilitate collection of potential control agents. Samples of Pineus were collected from Africa, Europe, USA, Australia and New Zealand. These were subjected to cytological, multivariate morphometric and DNA (RFLP) analyses. The African Pineus showed close correspondence with some of the Australian samples, confirming suspicions that Australia was the source of the introduction. However, there are no native pines in Australia. On morphological and cytological grounds, the African pine woolly aphid also shows affinity with samples from California and Hawaii, and seems likely to be conspecific with P. boerneri , originally described from Pinus radiata in California. Pine woolly aphid populations in Australia and New Zealand were found to include both P. boerneri and a species of European origin, P. pini.