The infectivity of a nuclear polyhedrosis virus of the velvetbean caterpillar for eight noctuid hosts |
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Authors: | GR Carner JS Hudson OW Barnett |
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Institution: | Department of Entomology and Economic Zoology, Clemson University, Clemson, South Carolina 29631 USA |
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Abstract: | Eight species of noctuid larvae were tested for susceptibility to a nuclear polyhedrosis virus of the velvetbean caterpillar, Anticarsia gemmatalis. Velvetbean caterpillar larvae were highly susceptible to crude preparations of polyhedral inclusion bodies (PIBs; LD50 = 4.7 PIBs/larva), but preparations of purified polyhedra were much less effective against these larvae (LD50 = 319.7 PIBs/larva). Of seven other noctuid species tested, only Heliothis virescens was as susceptible to the virus as A. gemmatalis. High dosages were required to kill Heliothis zea, Trichoplusia ni, Pseudoplusia includens, and Spodoptera ornithogalli. Plathypena scabra and Spodoptera frugiperda were not susceptible. |
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Keywords: | Nuclear polyhedrosis virus |
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