Abstract
Simple SummaryIn New Zealand, flystrike is caused by two Dipteran species, Lucilia cuprina and Lucilia sericata. This study contrasts four flytrap treatments, the LuciTrap with its combination of three chemical lures (Lucilures) and the Western Australian Trap with three different bait types (LuciLure, Sheep liver with 30% sodium sulphide and squid) during mid-summer. The aim of the study is to assess the most effective trap and bait combination that New Zealand farmers may use on their farms to monitor L. cuprina and L. sericata. This study found that either the LuciTrap or the Western Australian Trap with sheep liver and 30% sodium sulphide were the most effective traps to catch L. cuprina and L. sericata.Flytraps can be used on farms to monitor the populations of primary strike flies (Lucilia cuprina and Lucilia sericata) and, hence, offer a view regarding the incidence of flystrike on sheep. This study aimed to contrast the specificity and effectiveness of the LuciTrap with its combination of three chemical lures (Lucilures) and the Western Australian Trap with three bait types (LuciLure, Sheep liver with 30% sodium sulphide and squid). A mean model and rate model were fitted to the data. The mean model showed no difference (p > 0.05) in the mean weekly catch for L. cuprina between the Western Australian Trap with LuciLures and the Western Australian Trap baited with sheep liver with 30% sodium sulphide (p < 0.05). Whereas, for L. sericata, no difference (p > 0.05) was found between the Western Australian Trap with LuciLures, the Western Australian Trap baited with sheep liver with 30% sodium sulphide and the LuciTrap. The rate model illustrated that the Western Australian Trap with sheep liver with 30% sodium sulphide and LuciTrap did not differ (p > 0.05) for L. cuprina and L. sericata. Combined, these results indicate that New Zealand farmers can use either the LuciTrap or the Western Australian Trap with sheep liver with 30% sodium sulphide to monitor these target species.
Highlights
Flystrike or cutaneous myiasis is a disease caused by certain species of blowflies that lay eggs on the skin surface of sheep with larvae that subsequently parasitise the skin surface
In New Zealand, three species of Diptera can cause flystrike in the absence of open wounds: Lucilia cuprina and Lucilia sericata are regarded as the main species, while Calliphora stygia is associated with only a few cases [1,2]
This study found that both the LuciTrap with the LuciLures and the Western Australian Trap with sheep liver and sodium sulphide were the most effective toward L. cuprina and L. sericata
Summary
Flystrike or cutaneous myiasis is a disease caused by certain species of blowflies that lay eggs on the skin surface of sheep with larvae that subsequently parasitise the skin surface. In New Zealand, three species of Diptera can cause flystrike in the absence of open wounds: Lucilia cuprina and Lucilia sericata are regarded as the main species, while Calliphora stygia is associated with only a few cases [1,2]. The first use is to reduce the populations of Lucilia and, the incidence of flystrike on sheep [3,4]. In the United Kingdom, the deployment of flytraps in early spring reduced the emerging population of primary strike flies and reduced the annual flystrike levels [3]. It is shown that the use of flytraps did not reduce the number of cases of flystrike on a farm in New Zealand during the course of a season [4]
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