The alfalfa snout beetle, Otiorhynchus ligustici, a pest of European origin, has recently spread into mainland Ontario. A two-year study showed that dispersing adults incorporated into bales of alfalfa during harvest can survive therein for up to 46 days of storage in a mow. Furthermore, they can remain fertile for most of this period. This has important implications with respect to the shipment of hay from infested areas.
Harcourt, D. G. and Bereza, K
"Survival and Longevity of Otiorhynchus Ligustici (Coleoptera: Curculionidae) in Alfalfa Hay Bales in Eastern Ontario,"
The Great Lakes Entomologist: Vol. 23
, Article 3.
Available at: http://scholar.valpo.edu/tgle/vol23/iss1/3