家蚕多化性蝇蛆病(简称蝇蛆病)是由于多化性蚕蝇蛆Tricholygasirbillaria(寄生蝇科)产卵于蚕体上,孵化成蛆,侵入蚕体内寄生而引起。广东养蚕业在每年3-12月的饲养季节都受到它的危害,特别是高温造受害更重。由于蝇蛆病的危害,损失原料茧10-20％。1963年我国试验应用“灭蚕蝇”防治,获得显著的效果,现广东各地已普遍推广应用。蝇蛆病的危害得到有效的控制。但是,这样的防治方法是治标的,不能彻底根治。由于防蝇需要大量药物,引起农药供 Silkworm polysemy myiasis (referred to as myiasis) is due to multiple sericulture maggots Tricholygasirbillaria (parasitic Muscidae) spawning on the silkworm, hatch into maggots, invasive silkworm body caused by parasites. The sericulture industry in Guangdong is harmed by its annual rearing season from March to December, especially when it is harmed by high temperatures. As a result of the myiasis damage, the loss of raw materials cocoon 10-20%. In 1963, China’s experimental application of “mulberry silkworm” prevention and control, access to significant results, is now widely used throughout Guangdong. The myiasis is effectively controlled. However, such a prevention and cure method is a temporary solution and can not be completely eradicated. Because of the need for a large number of anti-flies drugs, causing pesticide supply