Publications for:

pest = Helicoverpa (genus)
beneficial = Bacillus thuringiensis Cry2A-toxin (entomopathogen)

found 75 publications:

2022

Status of Cry1Ac and Cry2Ab2 resistance in field populations of Helicoverpa zea in Texas, USA
Insect Science (2022) 29 (2), 487-495
publishers website - pestinfo wiki

2021

Effects of gene flow between Bt and non-Bt plants in a seed mixture of Cry1A.105 + Cry2Ab corn on performance of corn earworm in Arizona
Pest Management Science (2021) 77 (4), 2106-2113
publishers website - pestinfo wiki

Genome evolution in an agricultural pest following adoption of transgenic crops
Proceedings of the National Academy of Sciences of the United States of America (2021) 118 (52 - e2104673118)
publishers website - pestinfo wiki

2020

Knockout of three aminopeptidase N genes does not affect susceptibility of Helicoverpa armigera larvae to Bacillus thuringiensis Cry1A and Cry2A toxins
Insect Science (2020) 27 (3), 440-448
publishers website - pestinfo wiki

Gene flow between Bt and non-Bt plants in a seed mixture increases dominance of resistance to pyramided Bt corn in Helicoverpa zea (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2020) 113 (5), 2041-2051
publishers website - pestinfo wiki

Decline in sublethal effects of Bt corn on corn earworm (Lepidoptera: Noctuidae) linked to increasing levels of resistance
Journal of Economic Entomology (2020) 113 (5), 2241-2249
publishers website - pestinfo wiki

Performance of genetically modified soybean expressing the Cry1A.105, Cry2Ab2, and Cry1Ac proteins against key Lepidopteran pests in Brazil
Journal of Economic Entomology (2020) 113 (6), 2883-2889
publishers website - pestinfo wiki

Inheritance of Bacillus thuringiensis Cry2Ab2 protein resistance in Helicoverpa zea (Lepidoptera: Noctuidae)
Pest Management Science (2020) 76 (11), 3676-3684
publishers website - pestinfo wiki

Assessment of Pigeonpea (Cajanus cajan L.) transgenics expressing Bt ICPs, Cry2Aa and Cry1AcF under nethouse containment implicated an effective control against herbivory by Helicoverpa armigera (Hübner)
Pest Management Science (2020) 76 (5), 1902-1911
publishers website - pestinfo wiki

2019

Survival of Helicoverpa armigera larvae on and Bt toxin expression in various parts of transgenic Bt cotton (Bollgard II) plants
Entomologia Experimentalis et Applicata (2019) 167 (5), 415-423
publishers website - pestinfo wiki

Assessing the potential for interaction in insecticidal activity between MON 87751 × MON 87701 produced by conventional breeding
Environmental Entomology (2019) 48 (5), 1241-1248
publishers website - pestinfo wiki

Susceptibility of corn earworm (Lepidoptera: Noctuidae) to Cry1A.105 and Cry2Ab2 in North and South Carolina
Journal of Economic Entomology (2019) 112 (4), 1845-1857
publishers website - pestinfo wiki

Seasonal declines in Cry1Ac and Cry2Ab concentration in maturing cotton favor faster evolution of resistance to pyramided Bt cotton in Helicoverpa zea (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2019) 112 (6), 2907-2914
publishers website - pestinfo wiki

2018

Bt resistance implications for Helicoverpa zea (Lepidoptera: Noctuidae) insecticide resistance management in the United States
Environmental Entomology (2018) 47 (6), 1357-1364
publishers website - pestinfo wiki

Cytotoxicity and binding profiles of activated Cry1Ac and Cry2Ab to three insect cell lines
Insect Science (2018) 25 (4), 655-666
publishers website - pestinfo wiki

Effects of Bt corn on the development and fecundity of corn earworm (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2018) 111 (5), 2233-2241
publishers website - pestinfo wiki

2017

Resistance to Bacillus thuringiensis toxin Cry2Ab and survival on single-toxin and pyramided cotton in cotton bollworm from China
Evolutionary Applications (2017) 10 (2), 170-179
publishers website - pestinfo wiki

Susceptibilities of geographic populations of Helicoverpa zea (Lepidoptera: Noctuidae) in Mexico to Bt δ-endotoxins Cry1Ac and Cry2Ab: An 18-yr study
Journal of Economic Entomology (2017) 110 (5), 2207-2216
publishers website - pestinfo wiki

2016

Prevalence of cry2-type genes in Bacillus thuringiensis isolates recovered from diverse habitats in India and isolation of a novel cry2Af2 gene toxic to Helicoverpa armigera (cotton boll worm)
Canadian Journal of Microbiology - Revue Canadienne de Microbiologie (2016) 62 (12), 1003-1012
publishers website - pestinfo wiki

Evolution of resistance by Helicoverpa zea (Lepidoptera: Noctuidae) infesting insecticidal crops in the southern United States
Journal of Economic Entomology (2016) 109 (2), 821-831
publishers website - pestinfo wiki

Influence of dual-Bt protein corn on bollworm, Helicoverpa zea (Boddie), survivorship on Bollgard II cotton
Journal of Economic Entomology (2016) 109 (2), 860-864
publishers website - pestinfo wiki

Field-evolved resistance in corn earworm to cry proteins expressed by transgenic sweet corn
PLoS ONE (2016) 11 (12 - e0169115)
publishers website - pestinfo wiki

2015

Baseline sensitivity of maize borers in India to the Bacillus thuringiensis insecticidal proteins Cry1A.105 and Cry2Ab2
Pest Management Science (2015) 71 (8), 1082-1090
publishers website - pestinfo wiki

Insect resistance to Bacillus thuringiensis toxin Cry2Ab is conferred by mutations in an ABC transporter subfamily A protein
PLoS Genetics (2015) 11 (11 - e1005534)
publishers website - pestinfo wiki

2014

Dual Cry2Ab and Vip3A resistant strains of Helicoverpa armigera and Helicoverpa punctigera (Lepidoptera: Noctuidae); testing linkage between loci and monitoring of allele frequencies
Journal of Economic Entomology (2014) 107 (4), 1610-1617
publishers website - pestinfo wiki

Toxicity and cross-resistance of insecticides to Cry2Ab-resistant and Cry2Ab-susceptible Helicoverpa armigera and Helicoverpa punctigera (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2014) 107 (5), 1923-1930
publishers website - pestinfo wiki

2013

Development of the predator Chrysoperla carnea (Stephens) as affected by feeding on Helicoverpa armigera (Hübner) reared on transgenic Cry 2Ab tomato plants
Archives of Phytopathology and Plant Protection (2013) 46 (16), 2019-2022
publishers website - pestinfo wiki

IPM in the transgenic era: a review of the challenges from emerging pests in Australian cotton systems
Crop and Pasture Science (2013) 64 (8), 737-749
publishers website - pestinfo wiki

Dominant resistance to Bt cotton and minor cross-resistance to Bt toxin Cry2Ab in cotton bollworm from China
Evolutionary Applications (2013) 6 (8), 1222-1235
publishers website - pestinfo wiki

Risk assessment for Helicoverpa zea (Lepidoptera: Noctuidae) resistance on dual-gene versus single-gene corn
Journal of Economic Entomology (2013) 106 (1), 382-392
publishers website - pestinfo wiki

Multi-state trials of Bt sweet corn varieties for control of the corn earworm (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2013) 106 (5), 2151-2159
publishers website - pestinfo wiki

Potential shortfall of pyramided transgenic cotton for insect resistance management
Proceedings of the National Academy of Sciences of the United States of America (2013) 110 (15), 5806-5811
publishers website - pestinfo wiki

2012

Assessing the role of non-cotton refuges in delaying Helicoverpa armigera resistance to Bt cotton in West Africa
Evolutionary Applications (2012) 5 (1), 53-65
publishers website - pestinfo wiki

Evaluation of corn hybrids expressing Cry1F, Cry1A.105, Cry2Ab2, Cry34Ab1/Cry35Ab1, and Cry3Bb1 against southern United States insect pests
Journal of Economic Entomology (2012) 105 (5), 1825-1834
publishers website - pestinfo wiki

2011

Preferences of field bollworm larvae for cotton plant structures: impact of Bt and history of survival on Bt crops
Entomologia Experimentalis et Applicata (2011) 140 (1), 17-27
publishers website - pestinfo wiki

2010

Characterisation and expression of a novel haplotype cry2A-type gene from Bacillus thuringiensis strain JF19-2
Annals of Microbiology (2010) 60 (1), 129-134
publishers website - pestinfo wiki

Evolutionary ecology of insect adaptation to Bt crops
Evolutionary Applications (2010) 3 (5-6), 561-573
publishers website - pestinfo wiki

Adaptive management of pest resistance by Helicoverpa species (Noctuidae) in Australia to the Cry2Ab Bt toxin in Bollgard II^® cotton
Evolutionary Applications (2010) 3 (5-6), 574-584
publishers website - pestinfo wiki

Why do F₁ screens estimate higher frequencies of Cry2Ab resistance in Helicoverpa armigera (Lepidoptera: Noctuidae) than do F₂ screens?
Journal of Economic Entomology (2010) 103 (2), 472-481
publishers website - pestinfo wiki

Selection experiments to assess fitness costs associated with Cry2Ab resistance in Helicoverpa armigera (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2010) 103 (3), 835-842
publishers website - pestinfo wiki

Characteristics of resistance to Bacillus thuringiensis toxin Cry2Ab in a strain of Helicoverpa punctigera (Lepidoptera: Noctuidae) isolated from a field population
Journal of Economic Entomology (2010) 103 (6), 2147-2154
publishers website - pestinfo wiki

Incipient resistance of Helicoverpa punctigera to the Cry2Ab Bt toxin in Bollgard II® cotton
PLoS ONE (2010) 5 (9 - e12567)
publishers website - pestinfo wiki

Field-evolved resistance to Bt cotton: Bollworm in the U.S. and pink bollworm in India
Southwestern Entomologist (2010) 35 (3), 417-424
publishers website - pestinfo wiki

2009

Introgression of a disrupted cadherin gene enables susceptible Helicoverpa armigera to obtain resistance to Bacillus thuringiensis toxin Cry1Ac
Bulletin of Entomological Research (2009) 99 (2), 175-181
publishers website - pestinfo wiki

Limited survival of a Cry2Ab-resistant strain of Helicoverpa armigera (Lepidoptera: Noctuidae) on Bollgard II
Journal of Economic Entomology (2009) 102 (2), 708-716
publishers website - pestinfo wiki

Frequency of alleles conferring resistance to the Bacillus thuringiensis toxins Cry1Ac and Cry2Ab in Australian populations of Helicoverpa punctigera (Lepidoptera: Noctuidae) from 2002 to 2006
Journal of Economic Entomology (2009) 102 (2), 733-742
publishers website - pestinfo wiki

Cry2Ab tolerance response of Helicoverpa armigera (Lepidoptera: Noctuidae) populations from Cry1Ac cotton planting region
Journal of Economic Entomology (2009) 102 (3), 1217-1223
publishers website - pestinfo wiki

Response estimates for assessing heliothine susceptibility to Bt toxins
Journal of Economic Entomology (2009) 102 (5), 1935-1947
publishers website - pestinfo wiki

Field-evolved insect resistance to Bt crops: Definition, theory, and data
Journal of Economic Entomology (2009) 102 (6), 2011-2025
publishers website - pestinfo wiki

Susceptibility of Helicoverpa armigera (Lepidoptera: Noctuidae) to Cry1Ac and Cry2Ab2 insecticidal proteins in four countries of the West African cotton belt
Journal of Economic Entomology (2009) 102 (6), 2301-2309
publishers website - pestinfo wiki

2008

Effectiveness of Bacillus thuringiensis-transgenic chickpeas and the entomopathogenic fungus Metarhizium anisopliae in controlling Helicoverpa armigera (Lepidoptera: Noctuidae)
Applied and Environmental Microbiology (2008) 74 (14), 4381-4389
publishers website - pestinfo wiki

Specific binding of Bacillus thuringiensis Cry2A insecticidal proteins to a common site in the midgut of Helicoverpa species
Applied and Environmental Microbiology (2008) 74 (24), 7654-7659
publishers website - pestinfo wiki

Use of a Cry1Ac-resistant line of Helicoverpa armigera (Lepidoptera: Noctuidae) to detect novel insecticidal toxin genes in Bacillus thuringiensis
Current Microbiology (2008) 57 (3), 175-180
publishers website - pestinfo wiki

Toxicity and characterization of cotton expressing Bacillus thuringiensis Cry1Ac and Cry2Ab2 proteins for control of Lepidopteran pests
Journal of Economic Entomology (2008) 101 (2), 546-554
publishers website - pestinfo wiki

Isolations of Cry2Ab resistance in Australian populations of Helicoverpa armigera (Lepidoptera: Noctuidae) are allelic
Journal of Economic Entomology (2008) 101 (3), 909-914
publishers website - pestinfo wiki

Yield response of dual-toxin Bt cotton to Helicoverpa zea infestations
Journal of Economic Entomology (2008) 101 (5), 1594-1599
publishers website - pestinfo wiki

2007

Detection of chromosomally located and plasmid-borne genes on 20 kb DNA fragments in parasporal crystals from Bacillus thuringiensis
Archives of Microbiology (2007) 188 (4), 327-332
publishers website - pestinfo wiki

Effects of Bacillus thuringiensis Cry toxins on developmental and reproductive characteristics of the predator Orius albidipennis (Hemiptera: Anthocoridae) under laboratory conditions
Environmental Entomology (2007) 36 (5), 1246-1253
publishers website - pestinfo wiki

Resistance to Bacillus thuringiensis toxin Cry2Ab in a strain of Helicoverpa armigera (Lepidoptera: Noctuidae) in Australia
Journal of Economic Entomology (2007) 100 (3), 894-902
pestinfo wiki

Cross-resistance studies of Cry1Ac-resistant strains of Helicoverpa armigera (Lepidoptera: Noctuidae) to Cry2Ab
Journal of Economic Entomology (2007) 100 (3), 909-915
publishers website - pestinfo wiki

Susceptibility of bollworm and tobacco budworm (Lepidoptera: Noctuidae) to Cry2Ab2 insecticidal protein
Journal of Economic Entomology (2007) 100 (3), 921-931
publishers website - pestinfo wiki

Frequency of alleles conferring resistance to the Bt toxins Cry1Ac and Cry2Ab in Australian populations of Helicoverpa armigera (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2007) 100 (6), 1844-1853
publishers website - pestinfo wiki

2006

Lack of detrimental effects of Bacillus thuringiensis Cry toxins on the insect predator Chrysoperla carnea: a toxicological, histopathological, and biochemical analysis
Applied and Environmental Microbiology (2006) 72 (2), 1595-1603
publishers website - pestinfo wiki

Genetic variation for resistance to Bacillus thuringiensis toxins in Helicoverpa zea (Lepidoptera: Noctuidae) in eastern North Carolina
Journal of Economic Entomology (2006) 99 (5), 1790-1797
pestinfo wiki

2005

Predaceous arthropods and lepidopteran pests on conventional, Bollgard, and Bollgard II cotton under untreated and disrupted conditions
Environmental Entomology (2005) 34 (1), 105-114
pestinfo wiki

Binding of Cry delta-endotoxins to brush border membrane vesicles of Helicoverpa armigera and Helicoverpa punctigera (Lepidoptera: Noctuidae)
Insect Science (2005) 12 (4), 231-240
publishers website - pestinfo wiki

Selective feeding of tobacco budworm and bollworm (Lepidoptera: Noctuidae) on meridic diet with different concentrations of Bacillus thuringiensis proteins
Journal of Economic Entomology (2005) 98 (1), 88-94
pestinfo wiki

2004

Performance of feral and Cry1Ac-selected Hellcoverpa zea (Lepidoptera: Noctuidae) strains on transgenic cottons expressing one or two Bacillus thuringiensis ssp. kurstaki proteins under greenhouse conditions
Journal of Entomological Science (2004) 39 (1), 46-55
pestinfo wiki

2003

Partial characterization of cotton plants expressing two toxin proteins from Bacillus thuringiensis: relative toxin contribution, toxin interaction, and resistance management
Journal of Applied Entomology (2003) 127 (6), 340-347
publishers website - pestinfo wiki

Estimated frequency of nonrecessive Bt resistance genes in bollworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) in eastern North Carolina
Journal of Economic Entomology (2003) 96 (1), 137-142
pestinfo wiki

Distribution of bollworm, Helicoverpa zea (Boddie), injured reproductive structures on genetically engineered Bacillus thuringiensis var. kurstaki Berliner cotton
Journal of Economic Entomology (2003) 96 (3), 699-705
pestinfo wiki

Field and laboratory evaluations of transgenic cottons expressing one or two Bacillus thuringiensis var. kurstaki Berliner proteins for management of noctuid (Lepidoptera) pests
Journal of Economic Entomology (2003) 96 (3), 755-762
publishers website - pestinfo wiki

Resistance to the Cry1Ac delta-endotoxin of Bacillus thuringiensis in the cotton bollworm, Helicoverpa armigera (Lepidoptera: Noctuidae)
Journal of Economic Entomology (2003) 96 (4), 1290-1299
pestinfo wiki

2001

Impact of Bt cottons expressing one or two insecticidal proteins of Bacillus thuringiensis Berliner on growth and survival of noctuid (Lepidoptera) larvae
Journal of Economic Entomology (2001) 94 (3), 752-760
publishers website - pestinfo wiki

2000

Bacillus thuringiensis delta-endotoxin proteins show a correlation in toxicity and short circuit current inhibition against Helicoverpa zea
Current Microbiology (2000) 41 (3), 214-219
publishers website - pestinfo wiki