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Enhanced activity of the nucleopolyhedrovirus of the fall armyworm (Lepidoptera: Noctuidae) on Bt-transgenic and nontransgenic sweet corn with a fluorescent brightener and a feeding stimulant

Author:
Farrar, R.R. Jr., Shapiro, M., Shepard, B.M.
Source:
Environmental entomology 2005 v.34 no.4 pp. 825
ISSN:
0046-225X
Subject:
Spodoptera frugiperda multiple nucleopolyhedrovirus, Spodoptera frugiperda, insect control, transgenic plants, Zea mays, Bacillus thuringiensis, crystal proteins, viral insecticides, pesticide adjuvants, stilbenes, phagostimulants, larvae, mortality
Abstract:
The effects of a nutrient-based feeding stimulant, Coax, and a stilbene-based optical brightener, Blankophor P167, on the activity of the nucleopolyhedrovirus of the fall armyworm, Spodoptera frugiperda (J. E. Smith) (SfMNPV) on transgenic sweet corn, Zea mays L., expressing a CryIA(b) toxin from Bacillus thuringiensis (Berliner), were studied in the laboratory. Both Coax and Blankophor P167 increased virus-induced mortality. The effects of both materials did not differ between transgenic and nontransgenic corn. The greatest increase in virus-induced mortality occurred when Coax and Blankophor P167 were combined. Neither material affected the percentage of larvae killed by the CryIA(b) toxin.
Agid:
822
Handle:
10113/822