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   Articles with "helicoverpa zea" as a keyword



Landscape-level variation in Bt crops predict Helicoverpa zea (Lepidoptera: Noctuidae) resistance in cotton agroecosystems.

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recommendations! Published in 2021 at "Pest management science"

DOI: 10.1002/ps.6585

Abstract: BACKGROUND Helicoverpa zea (Boddie) damage to Bt cotton and maize has increased due to widespread Bt resistance across the USA Cotton Belt. Our objective was to link Bt crop production patterns to cotton damage through… read more here.

Keywords: zea damage; helicoverpa zea; resistance; damage ... See more keywords

Helicoverpa zea (Lepidoptera: Noctuidae) feeding incidence and survival on Bt maize in relation to maize in the landscape.

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recommendations! Published in 2022 at "Pest management science"

DOI: 10.1002/ps.6855

Abstract: Characterizing Helicoverpa zea (Boddie) damage to maize (Zea mays L.) in relation to the spatiotemporal composition of Bt crops is essential to understand how landscape composition affects H. zea abundance. To examine this relationship, paired… read more here.

Keywords: damage; helicoverpa zea; abundance; landscape ... See more keywords

Practical resistance to Cry toxins and efficacy of Vip3Aa in Bt cotton against Helicoverpa zea.

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recommendations! Published in 2022 at "Pest management science"

DOI: 10.1002/ps.7142

Abstract: BACKGROUND Crops genetically engineered to make insect-killing proteins from Bacillus thuringiensis (Bt) have revolutionized management of some pests. However, the benefits of such transgenic crops are reduced when pests evolve resistance to Bt toxins. We… read more here.

Keywords: helicoverpa zea; cotton; cry toxins; resistance ... See more keywords

Impact of Seed Blend and Structured Maize Refuge on Helicoverpa zea (Lepidoptera: Noctuidae) Potential Phenological Resistance Development Parameters in Pupae and Adults.

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recommendations! Published in 2023 at "Pest management science"

DOI: 10.1002/ps.7529

Abstract: Helicoverpa zea, an economic pest in the southeastern U.S., has evolved practical resistance to Bt Cry toxins in maize and cotton. Insect resistance management (IRM) programs have historically required planting of structured non-Bt maize, but… read more here.

Keywords: refuge; development; resistance; seed ... See more keywords

Evaluation of GS‐omega/kappa‐Hxtx‐Hv1a and Bt toxins against Bt‐resistant and ‐susceptible strains of Helicoverpa zea (Boddie) and Spodoptera frugiperda (J.E. Smith)

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recommendations! Published in 2025 at "Pest Management Science"

DOI: 10.1002/ps.8725

Abstract: Helicoverpa zea and Spodoptera frugiperda are destructive insect pests of cotton and corn. Both have evolved practical resistance to transgenic crops producing Bacillus thuringiensis (Bt) toxins in the United States. GS‐omega/kappa‐Hxtx‐Hv1a (ω/κ‐Hv1a) is a novel… read more here.

Keywords: helicoverpa zea; omega kappa; hv1a; spodoptera frugiperda ... See more keywords

Spontaneous transposition of HzSINE1 into CYP321A2 is undetectable in the field populations of Helicoverpa zea

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recommendations! Published in 2021 at "Journal of Asia-Pacific Entomology"

DOI: 10.1016/j.aspen.2021.07.015

Abstract: Abstract The enrichment of transposable elements (TEs) within allelochemical- and insecticide-metabolizing P450 alleles in Helicoverpa zea enables these P450s to gain TE-introduced adaptive variations otherwise not readily available to cope with the ever-changing and diverse… read more here.

Keywords: field; helicoverpa zea; hzsine1 inserted; cyp321a2 ... See more keywords

Comparison of the flavonoid profile of corn silks to select efficient varieties as trap plant for Helicoverpa Zea.

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recommendations! Published in 2020 at "Journal of agricultural and food chemistry"

DOI: 10.1021/acs.jafc.0c01462

Abstract: In Martinique Helicoverpa Zea is a common pest of tomato responsible for significant economic losses. To fight against H. zea proliferation and damages corn could be used as a trap crop since H. zea larvae… read more here.

Keywords: corn; helicoverpa zea; trap plant; zea ... See more keywords

Helicoverpa zea (Lepidoptera: Noctuidae) In-Season and Overwintering Pupation Response to Soil Type

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recommendations! Published in 2022 at "Environmental Entomology"

DOI: 10.1093/ee/nvac106

Abstract: Abstract Heliothinae soil pupation is understudied despite the key role this life stage plays in their development. Many Heliothinae are important agricultural pests and understanding the interplay of environment and pupation is important to optimize… read more here.

Keywords: textured clay; season; fine textured; pupation ... See more keywords

Susceptibilities of Helicoverpa zea (Lepidoptera: Noctuidae) Populations From the Mississippi Delta to a Diamide Insecticide

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recommendations! Published in 2022 at "Journal of Economic Entomology"

DOI: 10.1093/jee/toac180

Abstract: Abstract The corn earworm, Helicoverpa zea (Boddie), is a major pest of row crops in the Southern United States. Control of this insect is dependent on preventative insecticidal transgenic crops and synthetic insecticide applications when… read more here.

Keywords: lepidoptera noctuidae; zea lepidoptera; insecticide; mississippi delta ... See more keywords

A Modified F2 Screen for Estimating Cry1Ac and Cry2Ab Resistance Allele Frequencies in Helicoverpa zea (Lepidoptera: Noctuidae)

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recommendations! Published in 2023 at "Journal of Economic Entomology"

DOI: 10.1093/jee/toac181

Abstract: Abstract Evaluating the frequency of resistance alleles is important for resistance management and sustainable use of transgenic crops that produce insecticidal proteins from Bacillus thuringiensis. Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) is a major crop pest… read more here.

Keywords: resistance allele; lepidoptera noctuidae; resistance; helicoverpa zea ... See more keywords

Continued decline in sublethal effects of Bt toxins on Helicoverpa zea (Lepidoptera: Noctuidae) in field corn

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recommendations! Published in 2024 at "Journal of Economic Entomology"

DOI: 10.1093/jee/toae152

Abstract: The majority of field corn, Zea mays L., in the southeastern United States has been genetically engineered to express insecticidal toxins produced by the soil bacterium, Bacillus thuringiensis (Bt). Field corn is the most important… read more here.

Keywords: helicoverpa zea; corn; lepidoptera noctuidae; field corn ... See more keywords