Supplemental Control of Lepidopterous Pests on Bt Transgenic Sweet Corn with Biologically-Based Spray Treatments

Biologically-based spray treatments, including nucleopolyhedroviruses, neem, and spinosad, were evaluated as supplemental controls for the fall armyworm, Spodoptera frugiperda (J. E. Smith), and corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), on transgenic sweet corn, Zea mays (L.)...

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Veröffentlicht in:Journal of insect science (Tucson, Ariz.) Ariz.), 2009, Vol.9 (8), p.1-10
Hauptverfasser: Farrar, Robert R., Shepard, B. Merle, Shapiro, Martin, Hassell, Richard. L, Schaffer, Mark. L., Smith, Chad. M.
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container_issue 8
container_start_page 1
container_title Journal of insect science (Tucson, Ariz.)
container_volume 9
creator Farrar, Robert R.
Shepard, B. Merle
Shapiro, Martin
Hassell, Richard. L
Schaffer, Mark. L.
Smith, Chad. M.
description Biologically-based spray treatments, including nucleopolyhedroviruses, neem, and spinosad, were evaluated as supplemental controls for the fall armyworm, Spodoptera frugiperda (J. E. Smith), and corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), on transgenic sweet corn, Zea mays (L.) (Poales: Poaceae), expressing a Cry1Ab toxin from Bacillus thuringiensis Berliner (Bacillales: Bacillaceae) (Bt). Overall, transgenic corn supported lower densities of both pests than did nontransgenic corn. Control of the fall armyworm was improved in both whorl-stage and tassel-stage corn by the use of either a nucleopolyhedrovirus or neem, but the greatest improvement was seen with spinosad. Only spinosad consistently reduced damage to ears, which was caused by both pest species. In general, efficacy of the spray materials did not differ greatly between transgenic and nontransgenic corn.
doi_str_mv 10.1673/031.009.0801
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source Oxford Journals Open Access Collection; MEDLINE; DOAJ Directory of Open Access Journals; BioOne Open Access Titles; EZB-FREE-00999 freely available EZB journals; PubMed Central
subjects Animals
Army-worms
Bacillaceae
Bacillus thuringiensis
Bacterial Proteins - metabolism
Beauveria
Biological control
Control
Corn
corn earworm
Diseases and pests
Distribution
Endotoxins - metabolism
Fall armyworm
Helicoverpa zea
Hemolysin Proteins - metabolism
Insecticides
Larva
Lepidoptera
Moths
neem
nematode
Noctuidae
Nuclear polyhedrosis virus
nucleopolyhedrovirus
Pest Control, Biological - methods
Pest Control, Biological - standards
Pests
Plants, Genetically Modified - parasitology
Poaceae
spinosad
Spodoptera frugiperda
Zea mays
Zea mays - genetics
Zea mays - parasitology
title Supplemental Control of Lepidopterous Pests on Bt Transgenic Sweet Corn with Biologically-Based Spray Treatments
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