Impact of the Parasitoids (Howard) and (Förster) on Three Pests of Stored Rice.

This study evaluated the ability of pteromalid parasitoids and reared on to control stored product coleopteran pests , and . In trials of parasitoid treatment with , fewer pests ( and ) emerged than in the control. Parasitoid reproduction was highest with as a host, followed by and . In trials of parasitoid treatment with , fewer pests (, and ) emerged than in the control treatment. was the host with the highest rate of parasitoid reproduction, although the greatest level of reduction was seen in (i.e., host feeding levels were higher for this host species). For , no progeny was produced. For both species, parasitoids with significantly longer bodies and tibiae emerged from . These results suggest that both parasitoids have potential for use as biocontrol agents for different coleopteran species that attack stored rice.