Host specificity ofAcanthoscelides quadridentatus andA. Puniceus [Col.: Bruchidae] for biological control ofMimosa pigra (with preliminary data on their biology) |
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Authors: | R. C. Kassulke K. L. S. Harley G. V. Maynard |
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Affiliation: | (1) Division of Entomology, Long Pocket Laboratories, CSIRO, Private Bag No 3, 4068 Indooroopilly, Qld, Australia;(2) Department of Entomology, University of Queensland, 4067 St Lucia, Qld, Australia |
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Abstract: | The biology and host specificity of the seed-feeding bruchids,Acanthoscelides quadridentatus (Schaeffer) andA. puniceus Johnson, from Mexico were studied in quarantine facilities in Australia. Distinguishing characters in the genitalia of each species are illustrated. Oviposition was recorded on 16 of 73 species of plants tested but larvae died without entering pods or seeds, except onMimosa invisa K. F. P. von Martius andM. pigra L. Larvae entering seeds ofM. invisa died in the first instar. The bruchids were clearly specific toM. pigra and were subsequently released as part of a program for biological control of this weed in the Northern Territory, Australia in April 1983 and thailand in July 1984. |
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Keywords: | Bruchidae Acanthoscelides quadridentatus A. puniceus Mimosa pigra biology host specificity biological control |
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