Wahizatul A A, Faridah M, Nur Farhah A S
School of Marine and Environmental Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia.
Trop Biomed. 2016 Jun 1;33(2):359-365.
Musca domestica Linnaeus or house fly is one of the well-known cosmopolitan pests. Poultry farms, horse stables and ranches are some of the main habitats for house flies to extend their interference and disturbance. Since 1999, large number of fly population around horse stables and barns in Terengganu Equestrian Resort (TER) was detected and still persists till today. Imported horse food are speculated to be the main cause for the increasing number of these flies. The current study was conducted to determine the effect of imported horse food (i.e. chaff, pallet and alfalfa) and the food conditions (wet and dry) on house fly population densities. Commercial sticky papers were used for trapping house fly distribution around the horse stables and barns in TER from October 2013 to January 2014. A total of 36,751 flies were caught during the eight week study period. The highest number of flies (2,843 individuals) was caught when using 'wet alfalfa + chaff' whereas the lowest catch was when using 'dry alfalfa' (1,652 individuals). Generally, the wet food treatments captured higher flies compared to dry food treatments. The total number of captured flies was found to be influenced by relative humidity. Higher mean number of flies was captured during lower weekly humidity. Our findings conclude that the wet condition of imported horse food in TER increases the house flies population densities. Thus, urgent action should be taken as soon as possible and may need special management considerations in order to reduce the impact of house flies on the horse industry in Malaysia.
家蝇（Musca domestica Linnaeus），即常见的家蝇，是一种广为人知的世界性害虫。家禽养殖场、马厩和牧场是家蝇进行干扰和滋扰的一些主要栖息地。自1999年以来，在登嘉楼马术度假村（TER）的马厩和谷仓周围发现了大量苍蝇，且至今仍然存在。据推测，进口马粮是这些苍蝇数量增加的主要原因。本研究旨在确定进口马粮（即谷糠、托盘饲料和苜蓿）以及食物条件（湿和干）对家蝇种群密度的影响。2013年10月至2014年1月期间，使用商业粘纸在TER的马厩和谷仓周围诱捕家蝇分布情况。在为期八周的研究期间，共捕获36751只苍蝇。使用“湿苜蓿 + 谷糠”时捕获的苍蝇数量最多（2843只），而使用“干苜蓿”时捕获量最低（1652只）。一般来说，与干粮处理相比，湿粮处理捕获的苍蝇更多。发现捕获苍蝇的总数受相对湿度影响。在每周湿度较低时捕获的苍蝇平均数量较多。我们的研究结果表明，TER进口马粮的潮湿状况增加了家蝇的种群密度。因此，应尽快采取紧急行动，可能需要特殊的管理考虑，以减少家蝇对马来西亚养马业的影响。
