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1 April 2002 Effects of Virus Concentration and Ultraviolet Irradiation on the Activity of Corn Earworm and Beet Armyworm (Lepidoptera: Noctuidae) Nucleopolyhedroviruses
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Abstract

Laboratory studies were initiated to determine the relationship between virus concentration and radiation-caused inactivation of NPVs from Helicoverpa zea (HzSNPV) and Spodoptera exigua (SeMNPV). In the laboratory, a UV-B/UV-A system was used for inactivation studies. For both viruses inactivation was dependent upon both length of UV exposure and virus concentration. At all virus concentrations HzSNPV was more sensitive to UV than SeMNPV. In the field HzSNPV was used and virus persistence was significantly affected by virus concentration (i.e., inactivation was inversely related to virus concentration).

Martin Shapiro, Robert R. Farrar Jr, John Domek, and Iqbal Javaid "Effects of Virus Concentration and Ultraviolet Irradiation on the Activity of Corn Earworm and Beet Armyworm (Lepidoptera: Noctuidae) Nucleopolyhedroviruses," Journal of Economic Entomology 95(2), 243-249, (1 April 2002). https://doi.org/10.1603/0022-0493-95.2.243
Received: 22 November 2000; Accepted: 1 November 2001; Published: 1 April 2002
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