An apparatus for catching bees and detecting and treating diseases and pests comprising a beehive having at least one aperture and a bee holding device having a bee holding chamber and a bee entry means, the device adapted such that it can move between an open and closed configuration and having apertures which are adapted such 5 that bees are unable to pass through them the apparatus is adapted such that when in use in a user is able to place the bee entry means over, around or into the aperture in the beehive and bees are able to enter into the bee holding chamber via the bee entry means and once the desired amount of bees have entered the bee holding chamber the device can be moved to the closed configuration such that the bees are captured within 0 the bee holding device.