Results 41 to 50 of about 36,396 (261)

Characterization of ORF127 of Helicoverpa armigera nucleopolyhedrovirus

Acta Virologica, 2009
It has been shown that Ha127 in the genome of Helicoverpa armigera nucleopolyhedrovirus (HaNPV) has homologs in some other baculoviruses and encodes a putative protein of 192 aa. In this study, a sequence analysis showed the transcription initiation site in Ha127 gene at nts 188 upstream of the translation initiation codon ATG and a potential leucine ...
Z J, Guo, L H, Qiu, M F, Du, S H, An
openaire   +3 more sources

STATUS OF INSECTICIDE RESISTANCE IN THE COTTON BOLLWORM, HELICOVERPA ARMIGERA (HUBNER) [PDF]

Journal of Central European Agriculture, 2001
The status of insecticide resistance in some fi eld populations of Helicoverpa armigera (Hubner) from the main cotton growing regions of central and south India was determined during the cropping seasons of 2001-2005. Seven insecticides viz.
INDIRA CHATURVEDI
doaj  

The Spread of Helicoverpa armigera (Lepidoptera: Noctuidae) and Coexistence with Helicoverpa zea in Southeastern Brazil

Insects, 2017
Helicoverpa armigera, one of the world’s most destructive crop pests, was first documented in Brazil in 2013. Within a few months, this polyphagous insect had spread over the Northeast and Central-West of Brazil, causing great agricultural losses.
Fábio A. Pinto, Marcos V. V. Mattos, Farley W. S. Silva, Silma L. Rocha, Simon L. Elliot   +4 more
doaj   +1 more source

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

Genomics, 2020
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
Sneha Yogindran, M. Rajam
semanticscholar   +1 more source

Molecular identification for Helicoverpa spp. in Bt and non-Bt crops in central Argentina

Pesquisa Agropecuária Brasileira, 2022
The objective of this work was to identify, by molecular analysis, the species of the genus Helicoverpa in corn, soybean, and lucerne Bt and non-Bt crops, in central Argentina. A total of 1,343 carterpillars were analyzed by PCR-RFLP. Helicoverpa zea was
Emilia Inés Balbi, Fernando Miguel Flores, Daniela Sandra Tosto, Joel Demián Arneodo   +3 more
doaj   +1 more source

PATHOGENICITY OF HELICOVERPA ARMIGERA NUCLEOPOLYHEDRO VIRUS (HEARNPV) AND LECANICILLIUM SP. AGAINST HELICOVERPA ARMIGERA

Journal of Biopesticides, 2018
ABSTRACT Helicoverpa armigera (Hubner) is an important pest of corn crops. Lecanicillium sp. and Helicoverpa armigera Nucleopolyhedro virus (HearNPV) are biological control agents that are safe for the environment. This study observed pathogenicity of HearNPV and Lecanicillium sp. against eggs and larvae H. armigera.
Sempurna Ginting, Teguh Santoso, Yayi Munara K, Ruly Anwar, Lisdar I Sudirman   +4 more
openaire   +1 more source

Genomic innovations, transcriptional plasticity and gene loss underlying the evolution and divergence of two highly polyphagous and invasive Helicoverpa pest species

BMC Biology, 2017
Background Helicoverpa armigera and Helicoverpa zea are major caterpillar pests of Old and New World agriculture, respectively. Both, particularly H. armigera, are extremely polyphagous, and H. armigera has developed resistance to many insecticides. Here
S. L. Pearce, D. F. Clarke, P. D. East, S. Elfekih, K. H. J. Gordon, L. S. Jermiin, A. McGaughran, J. G. Oakeshott, A. Papanikolaou, O. P. Perera, R. V. Rane, S. Richards, W. T. Tay, T. K. Walsh, A. Anderson, C. J. Anderson, S. Asgari, P. G. Board, A. Bretschneider, P. M. Campbell, T. Chertemps, J. T. Christeller, C. W. Coppin, S. J. Downes, G. Duan, C. A. Farnsworth, R. T. Good, L. B. Han, Y. C. Han, K. Hatje, I. Horne, Y. P Huang, D. S. T. Hughes, E. Jacquin-Joly, W. James, S. Jhangiani, M. Kollmar, S. S. Kuwar, S. Li, N-Y. Liu, M. T. Maibeche, J. R. Miller, N. Montagne, T. Perry, J. Qu, S. V. Song, G. G. Sutton, H. Vogel, B. P. Walenz, W. Xu, H-J. Zhang, Z. Zou, P. Batterham, O. R. Edwards, R. Feyereisen, R. A. Gibbs, D. G. Heckel, A. McGrath, C. Robin, S. E. Scherer, K. C. Worley, Y. D. Wu   +61 more
doaj   +1 more source

Functional Characterization of two Carboxylesterase Genes Involved in Pyrethroid Detoxification in Helicoverpa armigera.

Journal of Agricultural and Food Chemistry, 2020
Insect carboxylesterases are major enzymes involved in metabolism of xenobiotics including insecticides. Two carboxylesterase genes, CarE001A and CarE001H, were cloned from the destructive agricultural pest Helicoverpa armigera.
Yong-Qiang Li, Li-Sha Bai, Cai-Xia Zhao, Jing-Jing Xu, Zhongrong Sun, Yan-ling Dong, Dexian Li, Xi-Li Liu, Zhi-Qing Ma   +8 more
semanticscholar   +1 more source

Oviposition behavior of Helicoverpa armigera in soybean [PDF]

Arquivos do Instituto Biológico, 2020
ABSTRACT The objective of this study was to evaluate the oviposition behavior of Helicoverpa armigera confined in different adult pair density and growth stages of soybean plants, and the resistance of soybean genotypes to H. armigera in the category nonpreference for oviposition. The oviposition behavior of H. armigera was assessed using one, two, and
Renato Franco Oliveira de Moraes, Arlindo Leal Boiça Júnior, Wellington Ivo Eduardo, Zulene Antônio Ribeiro   +3 more
openaire   +4 more sources

ANTIBIOSIS AND ANTIXENOSIS IN TOMATO GENOTYPES AGAINST Helicoverpa armigera HUBNER

Tropical and Subtropical Agroecosystems
Background. Farmers rely on the use of synthetic insecticides in managing Helicoverpa armigera, hole-boring insect pest on tomato, but they are detrimental to human health.
Folorunso Dotun Omotoso, Olajumoke Yemisi Alabi, Mobolade D. Akinbuluma, Olajumoke Oke Fayinminnu   +3 more
doaj   +1 more source