New Zealand Journal of Agricultural Research abstracts
Tests on a new bait for flies (Diptera: Calliphoridae) causing
cutaneous myiasis (flystrike) in sheep
Michael C. Morris
57 Cornford Street
Karori
Wellington
Abstract A synthetic bait consisting of
sulphur-containing volatile compounds encapsulated in a casein-based
slow release matrix was used in sticky and non-return traps to catch
sheep strike flies (Diptera: Calliphoridae) in the field. The synthetic
bait caught significantly more individuals of a minor strike fly Chrysomya
rufifacies than a liver/sodium sulphide mixture. The synthetic bait
also caught a significantly higher proportion of gravid C.
rufifacies than the liver mixture. The synthetic bait did not trap
significantly more Lucilia sericata than the liver mixture
overall. However, it did trap a significantly higher proportion of
gravid L. sericata than the liver mixture, suggesting it may
be effective in controlling this species under field conditions. The
bait efficacy wore off after 17 days under ambient conditions. The
17-day-old synthetic bait still caught significantly more C.
rufifacies than the liver mixture, but caught significantly fewer L.
sericata than the liver mixture. Ways of improving the bait
efficacy are discussed.
Keywords Lucilia sericata; Lucilia
cuprina; Chrysomya rufifacies; Calliphora stygia;
flystrike; bait
A03066; Received 10 November 2003; accepted 6 July 2004; Online
publication date 21 March 2005
New Zealand Journal of Agricultural Research, 2005, Vol. 48:
151–156
0028–8233/05/4801–0151 © The Royal Society of New Zealand 2005
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