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1. Bio-efficacy of Insecticides against Helicoverpa armigera in Chickpea

Author:
Vikrant,; Singh, Dharm Raj; Kumar, Sanjeev; Kishor, Kaushal; Kewal, Ram
Source:
Legume research 2020 v.43 no.2 pp. 276-282
ISSN:
0976-0571
Subject:
Helicoverpa armigera,   etc   ; chickpeas; insect larvae; seed yield; spinosad; India;     Show all 6 Subjects
Abstract:
... The study was carried out to evaluate bio-efficacy of some insecticides against Helicoverpa armigera (Hubner) in chickpea during rabi 2014–15 and 2015–16 at the Students ’Instructional Farm (SIF) of Chandra Shekhar Azad University of Agriculture and Technology, Kanpur. Minimum surviving and maximum reduction percentage of larval population was recorded in T₅ (Spinosad 45 EC @ 166 ml/ha), whereas m ...
DOI:
10.18805/LR-3960

2. Synergy between parasitoids and pathogens for biological control of Helicoverpa armigera in chickpea

Author:
Allahyari, Rahim; Aramideh, Shahram; Safaralizadeh, Mohammad Hassan; Rezapanah, Mohammadreza; Michaud, J.P.
Source:
Entomologia experimentalis et applicata 2020 v.168 no.1 pp. 70-75
ISSN:
0013-8703
Subject:
Helicoverpa armigera; Helicoverpa armigera nucleopolyhedrovirus,   etc   ; Bacillus thuringiensis; Cicer arietinum; Habrobracon hebetor; biological control; chickpeas; crops; insect control; instars; parasitoids; pathogens; pods; wasps;     Show all 14 Subjects
Abstract:
... The chickpea pod borer, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), is an important pest of many legume crops, including chickpea, Cicer arietinum L. (Fabaceae). We field‐tested the efficacy of two pathogens, Helicoverpa armigera nucleopolyhedrosis virus (HaNPV) and Bacillus thuringiensis Berliner subsp. kurstaki (Btk), both alone and in combination with the parasitoid Habrobracon hebeto ...
DOI:
10.1111/eea.12866

3. Field evaluation of light-emitting diodes to trap the cotton bollworm, Helicoverpa armigera

Author:
Pan, Hongsheng; Xu, Yalan; Liang, Gemei; Wyckhuys, Kris A.G.; Yang, Yizhong; Lu, Yanhui
Source:
Crop protection 2020 v.137 pp. 105267
ISSN:
0261-2194
Subject:
Helicoverpa armigera,   etc   ; field experimentation; imagos; integrated pest management; light emitting diodes; light traps; pests; wavelengths; China;     Show all 9 Subjects
Abstract:
... The cotton bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), is a limiting pest of many agricultural crops worldwide. At present, in-field populations of H. armigera are routinely monitored using conventional light traps. During 2014, 2015, we conducted field assays to assess the relative attractiveness of narrow-band light-emitting diodes (LEDs) at 19 single wavelengths (375–748 n ...
DOI:
10.1016/j.cropro.2020.105267

4. One Decade’s Research Efforts in Hungary to Develop a Bisexual Lure for the Cotton Bollworm Helicoverpa armigera Hübner

Author:
Tóth, M.; Nagy, A.; Szarukán, I.; Ary, K.; Cserenyec, A.; Fenyődi, B.; Gombás, D.; Lajkó, T.; Merva, L.; Szabó, J.; Winkler, P.; Jósvai, J. K.
Source:
Acta phytopathologica et entomologica Hungarica 2020 v.55 no.1 pp. 79-88
ISSN:
1588-2691
Subject:
Helicoverpa armigera,   etc   ; alcohols; bait traps; females; males; moths; phenylacetaldehyde; pheromone traps; synthetic pheromones; Hungary;     Show all 10 Subjects
Abstract:
... The addition of synthetic (E)-anethol to the known attractant phenylacetaldehyde synergized attraction of the cotton bollworm Helicoverpa armigera, the blend invariably catching 4 to 6 times more than phenylacetaldehyde on its own. Highest catches were recorded by the 1:1-3:1 blends. The addition of salicyl aldehyde, ±linalool, (R)-(+)-limonene, 2-methoxybenzyl alcohol and 4-methoxybenzyl alcohol ...
DOI:
10.1556/038.55.2020.005

5. Aphid Feeding Induces Phytohormonal Cross-Talk without Affecting Silicon Defense against Subsequent Chewing Herbivores

Author:
Johnson, Scott N.; Rowe, Rhiannon C.; Hall, Casey R.
Source:
Plants 2020 v.9 no.8
ISSN:
2223-7747
Subject:
Helicoverpa armigera,   etc   ; Brachypodium distachyon; Rhopalosiphum padi; grasses; jasmonic acid; mastication; models; phytophagous insects; salicylic acid; silicon;     Show all 10 Subjects
Abstract:
... Prior feeding by insect herbivores frequently affects plant quality for herbivores that subsequently feed on the plant. Facilitation occurs when one herbivore improves plant quality for other herbivores, including when the former compromises plant defenses. Silicon (Si) is an important defense in grasses that increases following activation of the jasmonic acid (JA) pathway. Given that aphids often ...
DOI:
10.3390/plants9081009

6. Estimation of avoidable yield losses in chickpea caused by Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)

Author:
Singla, Akanksha; Singh, Ravinder
Source:
Phytoparasitica 2020 v.48 no.5 pp. 755-765
ISSN:
0334-2123
Subject:
Helicoverpa armigera,   etc   ; Cicer arietinum; chickpeas; costs and returns; crop losses; insect density; insect larvae; pods; seed yield;     Show all 9 Subjects
Abstract:
... The estimation of avoidable crop losses caused by Helicoverpa armigera (Hübner) infesting chickpea was carried out at Punjab Agricultural University, Ludhiana during rabi seasons, 2016–17 and 2017–18 using insect density (0, 1, 2, 3, 4, 5 and 6 larvae per meter row length), mechanical and chemical protection methods. Per cent avoidable losses were found to increase with increase in the larval infe ...
DOI:
10.1007/s12600-020-00833-4

7. Temperature-dependent variations in toxicity of diamide insecticides against three lepidopteran insects

Author:
Li, Yaofa; Dou, Ya’nan; An, Jingjie; Tu, Xuewei; Lv, Haiying; Pan, Wenliang; Dang, Zhihong; Gao, Zhanlin
Source:
Ecotoxicology 2020 v.29 no.5 pp. 607-612
ISSN:
0963-9292
Subject:
Helicoverpa armigera,   etc   ; Athetis; Brassica oleracea; Plutella xylostella; cabbage; cyantraniliprole; flubendiamide; insects; larvae; leaves; pests; spraying; temperature; toxicity;     Show all 14 Subjects
Abstract:
... The effect of temperature on the toxicities of four diamide insecticides (chlorantraniliprole, cyantraniliprole, flubendiamide, tetraniliprole) against three lepidopteran insects (Helicoverpa armigera, Plutella xylostella, Athetis lepigone) were determined from 15 to 35 °C by exposing third-instar larvae to dip-treated cabbage leaf. The results indicated that increase in temperature led to an incr ...
DOI:
10.1007/s10646-020-02181-9

8. Polycalin is involved in the toxicity and resistance to Cry1Ac toxin in Helicoverpa armigera (Hübner)

Author:
Wang, Bingjie; Wei, Jizhen; Wang, Yanan; Chen, Lin; Liang, Gemei
Source:
Archives of insect biochemistry and physiology 2020 v.104 no.1 pp. e21661
ISSN:
0739-4462
Subject:
Helicoverpa armigera,   etc   ; antiserum; binding proteins; enzyme-linked immunosorbent assay; evolution; genes; insect larvae; insects; ligands; toxicity; toxins;     Show all 11 Subjects
Abstract:
... Polycalin has been confirmed as a binding protein of the Cry toxins in a few Lepidoptera insects, but its function in the action mechanism of Cry1Ac and whether it is involved in resistance evolution are still unclear. In this study, Ligand blot and enzyme‐linked immunosorbent assays showed that Helicoverpa armigera polycalin could specifically interact with Cry1Ac with a high affinity (Kd = 118.8 ...
DOI:
10.1002/arch.21661

9. P–S6K is associated with insect diapause via the ROS/AKT/ S6K/CREB/HIF-1 pathway in the cotton bollworm, Helicoverpa armigera

Author:
Wang, Xiao-Xue; Geng, Shao-Lei; Zhang, Xiao-Shuai; Xu, Wei-Hua
Source:
Insect biochemistry and molecular biology 2020 v.120 pp. 103262
ISSN:
0965-1748
Subject:
Helicoverpa armigera,   etc   ; brain; diapause; environmental factors; hypoxia-inducible factor 1; insects; mitochondria; physiological response; pupae; reactive oxygen species; signal transduction;     Show all 11 Subjects
Abstract:
... Diapause is a complex physiological response that allows insects to survive unfavorable environmental conditions, and many signaling pathways participate in regulating this process. However, little is known about TOR signaling in the regulation of diapause. In this study, we found that the TOR pathway-related proteins TOR and Raptor are expressed at low levels in the brains of diapause-destined pu ...
DOI:
10.1016/j.ibmb.2019.103262

10. Mating Disruption of Helicoverpa armigera (Lepidoptera: Noctuidae) on Processing Tomato: First Applications in Northern Italy

Author:
Burgio, Giovanni; Ravaglia, Fabio; Maini, Stefano; Bazzocchi, Giovanni Giorgio; Masetti, Antonio; Lanzoni, Alberto
Source:
Insects 2020 v.11 no.4
ISSN:
2075-4450
Subject:
Helicoverpa armigera,   etc   ; geostatistics; growing season; insect infestations; integrated pest management; males; mating disruption; pests; pheromones; plant damage; tomatoes; Italy;     Show all 12 Subjects
Abstract:
... Helicoverpa armigera is a polyphagous and globally distributed pest. In Italy, this species causes severe damage on processing tomato. We compared the efficacy of mating disruption with a standard integrated pest management strategy (IPM) in a two-year experiment carried out in Northern Italy. Mating disruption registered a very high suppression of male captures (>95%) in both growing seasons. Geo ...
DOI:
10.3390/insects11040206

11. Identification of a Cry1Fa binding site of cadherin in Plutella xylostella through fragment exchanging and molecular docking methods

Author:
Gao, Meijing; Hu, Xiaodan; Zhang, Xiao; Zhong, Jianfeng; Lu, Lina; Liu, Yuan; Dong, Sa; Wang, Yun; Liu, Xianjin
Source:
International journal of biological macromolecules 2020 v.146 pp. 62-69
ISSN:
0141-8130
Subject:
Helicoverpa armigera,   etc   ; Bacillus thuringiensis; Escherichia coli; Plutella xylostella; amino acids; binding capacity; binding sites; cadherins; computer simulation; mutation; receptors; toxins;     Show all 12 Subjects
Abstract:
... Binding to the cadherin in target pests is the primary step in the action mechanism of Cry toxins, but little is known regarding the interaction of Cry1Fa with cadherin. Our previous study suggested that a Plutella xylostella cadherin fragment (PxCad-TBR) can bind to Cry1Fa, while its homologous fragment (HaCad-TBR) in Helicoverpa armigera cannot. In this study, we expressed two cadherin fragments ...
DOI:
10.1016/j.ijbiomac.2019.12.063

12. Antifeedant and larvicidal activities of Mentha pulegium on chickpea pod borer Helicoverpa armigera (Lepidoptera: Noctuidae)

Author:
Boulamtat, Rachid; Lhaloui, Saadia; Sabraoui, Abdelhadi; El-Fakhouri, Karim; Oubayoucef, Ali; Mesfioui, Abdelhalim; El-Bouhssini, Mustapha
Source:
International journal of tropical insect science 2020 v.40 no.1 pp. 151-156
ISSN:
1742-7592
Subject:
Helicoverpa armigera,   etc   ; Mentha pulegium; antifeeding activity; biopesticides; chickpeas; essential oils; insect control; instars; larvicides; lethal concentration 50; toxicity;     Show all 11 Subjects
Abstract:
... This study investigates the insecticidal effect of the essential oil of Mentha pulegium L. on the second and third instar larvae of Helicoverpa armigera (Hübner). Antifeedant, contact toxicity and systemic toxicity of M. pulegium essential oil were evaluated using four concentrations and an untreated control under laboratory conditions. M. pulegium essential oil showed high level of antifeedant ac ...
DOI:
10.1007/s42690-019-00064-z

13. Effect of dietary stress of emamectin benzoate on the fitness cost of American bollworm, Helicoverpa armigera (Hübner, 1808)

Author:
Dagar, Vinay Singh; Mishra, Monika; Kumar, Sarita
Source:
International journal of tropical insect science 2020 v.40 no.4 pp. 1069-1077
ISSN:
1742-7592
Subject:
Helicoverpa armigera,   etc   ; bioassays; diet; digestibility; digestion; digestive system; dose response; ingestion; instars; integrated pest management; larval development; lethal dose 50; mortality;     Show all 13 Subjects
Abstract:
... Present study assessed the effect of Emamectin benzoate (EMB) on the survival, growth and nutrition efficiency of Helicoverpa armigera. Dietary EMB exhibited a significant systemic toxicity in H. armigera larvae resulting in LD₅₀ and LD₉₀ value of 0.092 µg/mL and 0.156 µg/mL, respectively. Feeding with 0.05–0.2 µg/mL EMB caused 10–100% larval mortality in a dose-dependent manner. Feeding the IV in ...
DOI:
10.1007/s42690-020-00168-x

14. Baseline susceptibility and frequency of resistance to diamide insecticides in Helicoverpa armigera (Lepidoptera: Noctuidae) populations in Brazil

Author:
Pereira, Rogério Machado; Abbade Neto, Dyrson; Amado, Douglas; Durigan, Mariana Regina; Franciscatti, Rodrigo Andrade; Mocheti, Marcelo; Omoto, Celso
Source:
Crop protection 2020 v.137 pp. 105266
ISSN:
0261-2194
Subject:
Helicoverpa armigera,   etc   ; alleles; bioassays; cyantraniliprole; evolution; flubendiamide; gene frequency; insecticide resistance; lethal dose 50; pests; resistance management; screening; survival rate; Brazil;     Show all 14 Subjects
Abstract:
... Diamide insecticides have been widely used to manage Helicoverpa armigera (Hübner) since the official detection of this pest in Brazil in 2013. Characterizing the baseline susceptibility of H. armigera populations to insecticides is the first step to implement an effective resistance-management program. In this study, we characterized the susceptibility and estimated the frequency of resistance al ...
DOI:
10.1016/j.cropro.2020.105266

15. Host-derived artificial miRNA-mediated silencing of ecdysone receptor gene provides enhanced resistance to Helicoverpa armigera in tomato

Author:
Yogindran, Sneha; Rajam, Manchikatla Venkat
Source:
Genomics 2020
ISSN:
0888-7543
Subject:
Helicoverpa armigera,   etc   ; Solanum lycopersicum; developmental stages; ecdysone; ecdysone receptor; gene silencing; genes; genetically modified organisms; insect control; insect development; insect pests; leaves; messenger RNA; microRNA; signal transduction; tomatoes;     Show all 16 Subjects
Abstract:
... Helicoverpa armigera causes huge crop losses due to its polyphagous nature. The present study demonstrates the use of artificial microRNA (amiRNA) mediated gene silencing approach to generate insect resistant tomato plants. Ecdysone receptor (HaEcR) gene of the target pest, H. armigera, which is involved in the regulation of all developmental stages of the insect life cycle, was silenced by sequen ...
DOI:
10.1016/j.ygeno.2020.10.004

16. Compositional analysis of transgenic Bt-chickpea resistant to Helicoverpa armigera

Author:
Gupta, Rubi; Baruah, Ananta Madhab; Acharjee, Sumita; Sarmah, Bidyut Kumar
Source:
GM crops & food 2020 v.11 no.4 pp. 262-274
ISSN:
2164-5701
Subject:
Helicoverpa armigera,   etc   ; Bacillus thuringiensis; chickpeas; digestible protein; digestion; gastric juice; genes; greenhouses; homozygosity; nutrient content; progeny; protein composition; seed storage; seed storage proteins; seed yield; transgenic plants;     Show all 16 Subjects
Abstract:
... Transgenic chickpeas expressing high levels of a truncated version of the cry1Ac (trcry1Ac) gene conferred complete protection to Helicoverpa armigera in the greenhouse. Homozygous progeny of two lines, Cry1Ac.1 and Cry1Ac.2, had similar growth pattern and other morphological characteristics, including seed yield, compared to the non-transgenic counterpart; therefore, seed compositional analysis w ...
DOI:
10.1080/21645698.2020.1782147

17. CRISPR‐mediated gene knockout reveals nicotinic acetylcholine receptor (nAChR) subunit α6 as a target of spinosyns in Helicoverpa armigera

Author:
Wang, Jing; Ma, Huanhuan; Zuo, Yayun; Yang, Yihua; Wu, Yidong
Source:
Pest management science 2020 v.76 no.9 pp. 2925-2931
ISSN:
1526-498X
Subject:
Helicoverpa armigera,   etc   ; CRISPR-Cas systems; gene editing; gene targeting; genetic analysis; indoxacarb; insect pests; insecticide resistance; monitoring; mutation; nicotinic receptors; sequence homology; spinosad; toxicity;     Show all 14 Subjects
Abstract:
... BACKGROUND: The spinosyn insecticides (spinosad and spinetoram) have been intensively used to control a wide range of agricultural pests. However, resistance to spinosyns has evolved in several agricultural pests. Disruption of the nicotinic acetylcholine receptor subunit α6 (nAChRα6) has been associated with high levels of resistance to spinosyns in both field and laboratory‐selected strains of s ...
DOI:
10.1002/ps.5889

18. The selective feeding of cotton bollworms (Helicoverpa armigera) on transgenic and non-transgenic cotton leaves from consecutive cultivation fields

Author:
Liu, Yongbo; Luo, Zunlan; Zhao, Yimin; Xiao, Nengwen
Source:
International journal of pest management 2020 v.66 no.3 pp. 195-200
ISSN:
1366-5863
Subject:
Helicoverpa armigera,   etc   ; Bacillus thuringiensis; Gossypium; cotton; crops; evolution; genes; insect larvae; leaf area; leaves; pest management; rearing; survival rate; transgenic plants;     Show all 14 Subjects
Abstract:
... The aim of this study was to determine whether target-insects selectively feed on transgenic or non-transgenic crops after consecutive cultivation in fields. We sampled leaves from insect-resistant single-transgenic cotton (expressing Cry1Ac gene), pyramided-transgenic (expressing Cry1Ac and CPTI genes) and conventional cotton that were consecutively cultivated for three years in a field. Cotton b ...
DOI:
10.1080/09670874.2019.1603412

19. Evidence for multiple maternal lineages of the invasive pest Helicoverpa armigera in Argentina

Author:
Balbi, Emilia I.; Tosto, Daniela S.; Flores, Fernando M.; Arneodo, Joel D.
Source:
Phytoparasitica 2020 v.48 no.3 pp. 407-413
ISSN:
0334-2123
Subject:
Helicoverpa armigera,   etc   ; agricultural trade; cytochrome b; cytochrome-c oxidase; females; genetic variation; haplotypes; insect pests; invasive species; mitochondria; mitochondrial DNA; Argentina; Brazil; Paraguay; Uruguay;     Show all 15 Subjects
Abstract:
... The polyphagous Helicoverpa armigera (Lepidoptera: Noctuidae) causes significant agricultural losses worldwide. This pest has recently expanded its range into South America. Since its first report in north-western Argentina, H. armigera has already been detected in geographically distant locations within the country. In this work, mitochondrial cytochrome c oxidase subunit I (COI) and cytochrome b ...
DOI:
10.1007/s12600-020-00800-z

20. Infection of cotton bollworm by Helicoverpa armigera iflavirus decreases larval fitness

Author:
Yuan, He; Xu, Pengjun; Xiao, Yutao; Yang, Liyu; Yang, Xianming; Wu, Kongming
Source:
Journal of invertebrate pathology 2020 v.173 pp. 107384
ISSN:
0022-2011
Subject:
Helicoverpa armigera,   etc   ; Iflavirus; bioassays; digestion; gene expression; gene expression regulation; genes; larvae; mortality; plant diseases and disorders; plant viruses; proteins; pupae; transcription (genetics);     Show all 14 Subjects
Abstract:
... Previously, we reported a novel iflavirus in Helicoverpa armigera (helicoverpa armigera iflavirus, HaIV) and here we report the effects of HaIV on its host. In a laboratory bioassay, HaIV-positive larvae and pupae developed more slowly and had higher mortality than HaIV-negative larvae, suggesting that the virus is pathogenic. The relative fitness of H. armigera decreased with HaIV infection by a ...
DOI:
10.1016/j.jip.2020.107384