Redistribution: In order to redistribute the insects, you should
collect the infested seed heads. You should allow the adults to emerge
in the spring, or you can collect the egg laying females with a sweep net.
You should release the insects quickly in a field of knapweed. The
adults will survive a week in shipment if kept cool and are provided with
ample food (1).
1) Rees, Normanl, et. al., Ed., Biological Control of Weeds
in the West, Western Society of Weeds Science, in Cooperation With USDA
ARS, Mt Department of Ag, and MT State Univ., Color World Printers, Bozeman
Mt, Feb., 1996.
2). R.F. Lang. Bangasternus fausti. Biological
Control, A Guide to Natural Enemies in North America, Cornell Univ., [Online]
Last modified April 18, 1997.