Aloha Diane! Hives that are weak are those that are attacked by moths. There are basically two species of moths that attack honeybee hives, the Lesser wax moth, Achroia grisella (Fab.) (Lepidoptera: Pyralidae) and the Greater wax moth, Galleria mellonella (Linn.) (Lepidoptera: Pyralidae). You should get in contact with Cornell Univ. Cooperative Extension Service for more info on these moths. If the hive is really weak, the moths can take over the hive. You can place frames infested with the moth larvae in strong hives and the bees should clean them up. I hope this info helps. Jack Hilo, HI On Tue, 20 Jun 1995, Diane Cooper wrote: > Has anyone any experience with bee moths laying eggs in hives? > How many types are there and is there an easy way to id them? > How harmful are they to a hive? > > Thanks, > Diane Cooper > [log in to unmask] >