柑桔和芒果的实蝇类、象甲类害虫,严重为害果实,造成落果,为本区影响果树增产的主要害虫,又是重要检疫对象,需在产地与出口地进行检疫,以防远距离传播为害。目前还没有实用而又可靠的快速探测果实内害虫的方法,一般是观察外表征状并作剖检来决定。美国农业科学家最近曾简略报导有一种新的探测方法:认为通过一系列中间装置,扬声器即可传出果内感染实蝇幼虫取食与活动的声音,在几秒内可检测出果内实蝇幼虫。这样就可以减少盲目化学熏蒸处理和蔓延为害所带来的巨大经济损失。这种装置 Citrus and mango fruit flies, such as a class of pests, serious fruit damage, resulting in falling fruit, the main pests affecting the yield of fruit trees in the region, but also an important quarantine object, to be quarantined at the place of origin and exit to prevent long-distance Disastrous. There is currently no practical and reliable method of rapid detection of fruit pests, the general observation is to look at the symptoms and necropsy to decide. American agricultural scientists recently briefly reported a new detection method: that through a series of interim devices, the speaker can be heard within the fruits of fruit fly larvae infestation and activity of fruit sound can be detected within a few seconds fruit fly larva. This will reduce the huge economic losses caused by blind chemical fumigation and spread damage. This device