caa a22 4500 388035498 CHVBK 20180307125003.0 cr unu---uuuuu 161130e199808 xx s 000 0 eng 10.1017/S0007485300042140 doi S0007485300042140 pii (NATIONALLICENCE)cambridge-10.1017/S0007485300042140 Edwards P.B. CSIRO Biological Control Unit, Zoology Department, University of Cape Town, Rondebosch 7700, South Africa Seasonal abundance and parasitism of Mesoclanis seed flies (Diptera: Tephritidae) in South Africa, and implications for the biological control of Chrysanthemoides monilifera (Asteraceae) in Australia [Elektronische Daten] [P.B. Edwards] The seasonal abundance and rates of parasitism of three species of Mesoclanis seed flies was studied in South Africa. The three species occur on Chrysanthemoides monilifera, and were recorded during most months of the year, whenever C. monilifera was flowering. At three sites in KwaZulu-Natal, numbers of eggs per capitulum of Mesoclanis polana Munro were highest on C. monilifera rotundata between June and November (winter/spring), towards the end of the main flowering flush. Parasitism of M. polana was between 50% and 90% for most of the year. Two other species of Mesoclanis (M. magnipalpis Bezzi and M. dubia Walker) occurred together on C. m. rotundata in the Eastern Cape (St Francis Bay), where parasitism during the year was between 55% and 95%. Peak numbers of eggs per capitulum (M. magnipalpis and M. dubia combined) occurred in May/June (winter), in the latter part of the main flowering flush. Mesoclanis magnipalpis was the only species recorded on C. m. pisifera in De Hoop Nature Reserve (Western Cape), where there was only one peak of oviposition (May/June), coinciding with the short and discrete flowering period of this subspecies. Parasitism was between 50% and 65%. At least nine species of parasitoid were reared from immature Mesoclanis stages. Eurytoma sp. (Eurytomidae) was a dominant parasitoid at all sites. Results are discussed in relation to the possible effectiveness of species of Mesoclanis seed flies as biological control agents of C. monilifera in Australia. Copyright © Cambridge University Press 1998 Bulletin of Entomological Research Cambridge University Press 88/4(1998-08), 407-414 0007-4853 88:4<407 1998 88 BER https://doi.org/10.1017/S0007485300042140 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0007485300042140 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Edwards P.B. CSIRO Biological Control Unit, Zoology Department, University of Cape Town, Rondebosch 7700, South Africa NATIONALLICENCE 773 0- Bulletin of Entomological Research Cambridge University Press 88/4(1998-08), 407-414 0007-4853 88:4<407 1998 88 BER CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge