Abstract
Trichogramma nubilale Ertle and Davis may be reared on eggs of European corn borer (ECB), ostrinia nubilalis (Hubner), which have been killed by ultraviolet (UV) radiation. A dosage of 30 min is sufficient to cause 100% mortality in ECB eggs 0 to 4 hold. T. nubilale reared for five consecutive generations on dead, UV-irradiated eggs exhibit a slightly shortened life span, but there were no significant changes in the number of progeny per female, adult emergence, sex ratio, and progeny produced per ECB egg.
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