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1 December 2015 Elimination of the Mound-Building Termite, Nasutitermesexitiosus (Isoptera: Termitidae) in South-Eastern Australia Using Bistrifluron Bait
Garry A. Webb, Charles McClintock
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Bistrifluron, a benzoylphenylurea compound, was evaluated for efficacy against Nasutitermes exitiosus (Hill), a mound-building species in southern Australia. Bistrifluron bait (trade name Xterm) was delivered as containerized pellets inserted into plastic feeding stations implanted in the sides of mounds—60 g for bistrifluron bait-treated mounds and 120 g of blank bait for untreated mounds. Termites actively tunneled in the gaps between pellets and removed bait from the canisters. All five treated mounds were eventually eliminated, and all five untreated mounds remained active at the end of the trial. Four of the five treated mounds were considered dead and excavated after 26 wk, but there were earlier signs of mound distress—reduced repair of experimental casement damage and reduced activity in bait canisters by 22 wk and reduced internal mound temperature after 11 wk. One treated mound showed activity in the bait station right through until almost the end of the trial (47 wk), but excavation at 49 wk showed no further activity in the mound. The five untreated colonies removed on average 97% of blank bait offered, while the five treated colonies removed on average 39.1% of bait offered. There was a wide variation in temperature profiles of mounds (up to 15°C for both minimum and maximum internal temperatures), from the beginning of the trial and even before the effects of baiting were evident.

© The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email:
Garry A. Webb and Charles McClintock "Elimination of the Mound-Building Termite, Nasutitermesexitiosus (Isoptera: Termitidae) in South-Eastern Australia Using Bistrifluron Bait," Journal of Economic Entomology 108(6), 2702-2710, (1 December 2015).
Received: 20 May 2015; Accepted: 14 July 2015; Published: 1 December 2015

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mound temperature
Nasutitermes exitiosus
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