三色依蝇生活习性和猪蝇蛆病的考察

Observation on the Bionomics and the Myiasis of Idiella tripartita (Bigot 1874)

报道三色依蝇成蝇飞进猪舍,于阴暗的隙缝中产卵,在室温30℃条件下,经20h幼虫孵出后,在猪舍里,白天隐匿于垫草或疏松的泥土以及阴暗的墙角隙缝中,夜间活动吸食猪血,导致猪蝇蛆病,通过上述观察,阐明了三色依蝇蛆症的传播途径,考察仙游县19个乡镇,共查猪2277头,被该蝇蛆叮咬和吸血1684头,感染率平均为73.95％,其中仔猪受害最为严重,达86.80％,说明仙游县是个严重流行区,蝇蛆和蛹在猪舍中整年均可采获,但以6月和10月为两个高峰期,成蝇的寿命最长存活88d,发现鸡喜啄食蝇蛆,倡议猪舍养鸡可消灭蛆虫之害。

This article first reports as the myiasis of Idiella tripartite is caused by the larvaedue to flies flew into pigsty qvulated and hatched. The female lays her eggs on the dry dirt and straw of floor of pigstys. The larvae hatch with in 20 hours under the room temperature of 30℃. they shelter on dry straw and loose soil of floor or on crack and Conner of wail during the daytime, and they actively suck the animal blood at the night. The fiy season has two peaks. May to June and September to October. The longest life span of the flies is over 88 days. A general survey of the myiasis of the fiy in Xianyou district of Fujian province were made during 1987-1989. 1684 of the 2. 227 pigs were found infected with myiasis of Idiella trlyartita, the infection rate was 73. 95%. Among the positive rate of the piglet was 86. 80% , it was higher than others.