Techniques for mass rearing egg parasites on eggs of the factitious host Sitotroga cerealella (Angoumois Grain Moth - AGM) were further developed and refined. AGM egg production peeked at 330,000 per day during November 1991, but was inconsistent. An automated egg collection system was developed and constructed, and commenced operation in December 1991. A Morrison unit for rearing egg parasites was constructed in July and has the capacity to rear one million parasites per day, provided there are sufficient host eggs available.