Transgenic Bt Corn Hybrids and Pest Management in the USA

Tiwari, Siddharth; Youngman, R. R.

doi:10.1007/978-94-007-0186-1_2

Cited by 5 publications

(2 citation statements)

References 76 publications

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“…Effective control of the borer complex of maize in the America has mainly relied on the genetically modified maize hybrids expressing Bt insecticidal proteins for over a decade [ 24 ]. However, the management of FAW exclusively depends on the synthetic pesticides in Africa and Asia [ 8 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Bio-Intensive Tactics for the Management of Invasive Fall Armyworm for Organic Maize Production

Keerthi

Suroshe

Sagar

et al. 2023

Plants

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Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is an invasive pest native to the American continent. The present study focused on bio-intensive tactics like intercropping, using natural enemies, botanical insecticides and biopesticides for managing S. frugiperda for the organic production of maize in Indian conditions. A total of eight different parasitoids attacking the different stages of S. frugiperda viz., eggs and larvae were found in the study area. The total parasitism rate due to all the parasitoids ranged from 28.37 to 42.44%. The egg-larval parasitoid, Chelonus formosanus Sonan (Hymenoptera: Braconidae) was the dominant parasitoid (12.55%), followed by Chelonus nr. blackburni (Hymenoptera: Braconidae) (10.98%) and Coccygydium sp. (4.85%). About 36.58 percent of the egg masses collected was parasitized by egg parasitoids, among which Telenomus remus (Nixon) (Hymenoptera: Scelionidae) was the dominant parasitoid. The botanicals insecticides such as citronella and annona extract were most effective, resulting in 100% mortality of FAW larvae (168 h after treatment). The essential oil of garlic (100%) was found highly effective in inhibiting egg hatching, followed by geraniol (90.76%). The maize intercropped with lady’s finger (okra) recorded significantly the lowest pest infestation and recorded higher grain yield (6.17 q/ha) than other intercropping systems and control (5.10 q/ha). The overall bioefficacy of commercial biopesticides against the larvae of S. frugiperda was in the following order azadirachtin > Metarhizium anisopliae (Metch.) Sorokin (Hypocreales: Clavicipitaceae) > Beauveria bassiana (Balsamo) Vuillemin (Hypocreales: Clavicipitaceae) at 168 h after treatment.

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Section: Introductionmentioning

confidence: 99%

Bio-Intensive Tactics for the Management of Invasive Fall Armyworm for Organic Maize Production

Keerthi

Suroshe

Sagar

et al. 2023

Plants

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“…The wire nut technique may also prove useful for making infestations of other stalk boring Lepidoptera, such as the southwestern corn borer. As acreage under Bt corn continues to increase (Tiwari and Youngman 2010), our results may prove useful for providing pest managers an efÞcient tool for handinfesting corn with lepidopteran pest larvae for future resistance and economic studies on Bt corn. Mean (Ϯ SEM) was calculated using three batches of 10 handinfested cornstalks.…”

Section: Discussionmentioning

confidence: 97%

A Technique Using Reusable Components for Hand-Infesting Cornstalks With European Corn Borer (Lepidoptera: Crambidae) Larvae

Tiwari¹,

Youngman²,

Jordan³

et al. 2010

jnl. econ. entom.

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Field trials were conducted in 2005 and 2006 to evaluate the use of reusable wire nuts and nonreusable gelatin capsules for hand-infesting cornstalks with European corn borer, Ostrinia nubilalis (Hübner), (Lepidoptera: Crambidae) larvae. The reusable technique, which consists of a modified WingGard plastic wire connector (i.e., wire nut) as a containment device for larvae, was compared over three plant growth stages to a gelatin capsule technique. In 2005 and 2006, the wire nut technique resulted in significantly higher number of wire nuts still intact (i.e., undamaged, with or without a larva) on the stalk at 72 h after infestation compared with the gelatin capsule technique. In addition, the wire nut technique resulted in significantly higher number of tunnels per stalk compared with the gelatin capsule technique at all three corn growth stages during both years. In 2005, the mean +/- SEM number of tunnels per stalk was 0.53 +/- 0.03 in the wire nut technique compared with 0.13 +/- 0.03 tunnels per stalk in the gelatin capsule technique. In 2006, the mean number of tunnels per stalk was 0.45 +/- 0.03 in the wire nut technique compared with 0.08 +/- 0.02 tunnels per stalk in the gelatin capsule technique. In addition, the relative net precision in the wire-nut technique was approximately 2 times higher compared with the gelatin capsule technique.

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Emerging issues in Integrated Pest Management Implementation and Adoption in the North Central USA

Sappington

2014

Integrated Pest Management

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Transgenic Bt Corn Hybrids and Pest Management in the USA

Cited by 5 publications

References 76 publications

Bio-Intensive Tactics for the Management of Invasive Fall Armyworm for Organic Maize Production

Bio-Intensive Tactics for the Management of Invasive Fall Armyworm for Organic Maize Production

A Technique Using Reusable Components for Hand-Infesting Cornstalks With European Corn Borer (Lepidoptera: Crambidae) Larvae

Emerging issues in Integrated Pest Management Implementation and Adoption in the North Central USA

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