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The egg parasitoid Telenomus busseolae Gahan (Hymenoptera: Scelionidae) is one of the most important natural enemies of the Mediterranean corn stem borer, Sesamia nonagrioides Lefebvre (Lepidoptera: Noctuidae). The effects of lethal and sublethal concentrations of two commonly used pyrethroids, deltamethrin and cyfluthrin, on emergence, fecundity, longevity, and offspring sex ratio of T. busseolae...
Percent parasitism of Nezara viridula (L.) (Heteroptera:Pentatomidae) by Trichopoda pennipes F.(Diptera: Tachinidae) ten years after itsfortuitous introduction was evaluated in someareas of Italy. The parasitoid is acclimatisedin central Italy with a parasitism in 1998 of21.3% in the west coast area (Lazio) and of24.8% in the inland area (Umbria). Host adultsof both sexes were attacked with the same...
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