Undesidered effects of the honeydew of Cinara cuneomaculata (Del Guercio), lachnid aphid of larch, on the feeding of Apis mellifera L.

The dangerousness of the presence of Aphidoidea Lachninae, particularly of Cinara cuneomaculata (Del Guercio), on larch near apiaries is pointed out. Indeed the honeydew producted from these insects in autumn causes the storing of a quality of honey that granulates so fast that the bees are not able to solubilize it. Consequently they can die of starvation.