Results 51 to 60 of about 26,948 (256)

Scientific Opinion on the pest categorisation ofHelicoverpa armigera(Hübner) [PDF]

EFSA Journal, 2014
The Panel on Plant Health undertook a pest categorisation of Helicoverpa armigera for the European Union territory. The taxonomy of H. armigera and related species worldwide is complex but, in Europe, only H. armigera is present. Although it has been recorded in all Member States, it persists throughout the year only in the southernmost parts of Europe
Baker, Richard, Bragard, Claude, Candresse, Thierry, GILIOLI, Gianni, Grégoire, Jean Claude, Holb, Imre, Jeger, Michael John, Karadjova, Olia Evtimova, Magnusson, Christer, Makowski, David, Manceau, Charles, Navajas, Maria, Rafoss, Trond, Rossi, Vittorio, Schans, Jan, Schrader, Gritta, Urek, Gregor, Vloutoglou, Irene, Werf, Wopke van der, Winter, Stephan   +19 more
openaire   +2 more sources

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

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

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

New insights on the effects of spinosad on the development of Helicoverpa armigera

Ecotoxicology and Environmental Safety, 2021
Helicoverpa armigera (cotton bollworm) is one of the most destructive pests worldwide. Due to resistance to Bacillus thuringiensis and conventional insecticides, an effective management strategy to control this pest is urgently needed. Spinosad, a natural pesticide, is considered an alternative; however, the mechanism underlying the developmental ...
Xinming Yin, Mengfang Du, Yue Yang, Yuying Xue, Shuangyan Yao, Wenli Zhao, Jizhen Wei, Shiheng An, Xiaoguang Liu, Guan Ruobing   +9 more
openaire   +3 more sources

Host plant induced variation in gut bacteria of Helicoverpa armigera. [PDF]

PLoS ONE, 2012
Helicoverpa are important polyphagous agricultural insect pests and they have a worldwide distribution. In this study, we report the bacterial community structure in the midgut of fifth instar larvae of Helicoverpa armigera, a species prevalent in the ...
Natarajan Gayatri Priya, Abhishek Ojha, Mayur K Kajla, Anand Raj, Raman Rajagopal   +4 more
doaj   +1 more source

Timeline and geographical distribution of Helicoverpa armigera (Hübner) (Lepidoptera, Noctuidae: Heliothinae) in Brazil

Revista Brasileira de Entomologia, 2016
This study presents registers of Helicoverpa armigera (Hübner) occurrence to assess its spatial and temporal distribution in Brazil. We used data from collections, especially from the Southern Region, systematic collections in Rio Grande do Sul ...
Daniel R. Sosa-Gómez, Alexandre Specht, Silvana V. Paula-Moraes, Adilson Lopes-Lima, Silvia A.C. Yano, Adriana Micheli, Elisangela G.F. Morais, Paulo Gallo, Paulo R.V.S. Pereira, José R. Salvadori, Marcos Botton, Maurício M. Zenker, Wilson S. Azevedo-Filho   +12 more
doaj   +3 more sources

The cotton bollworm (Helicoverpa armigera) and Azuki bean beetle (Callosobruchus chinensis): major chickpea (Cicer arietinum L.) production challenges on smallholder farmers in Ethiopia

Journal of Basic and Applied Zoology, 2022
Background Chickpea (Cicer arietinum L.) is one of the most principally important legume crops in Ethiopia. Its production is mainly constrained by insect pests.
Tarekegn Fite, Tadele Tefera
doaj   +1 more source

Molecular mechanism of ATP‐binding cassette transporter‐mediated insecticide resistance

New Plant Protection, EarlyView.
Advances in functional genomics (RNAi and CRISPR/Cas9) and artificial intelligence‐driven structure prediction (e.g., AlphaFold) are elucidating how ATP‐binding cassette transporters mediate insecticide resistance to both synthetic chemicals and Bacillus thuringiensis toxins.
Yuntong Lv, Pengcheng Wang, Zihan Wei, Xueqing Yang   +3 more
wiley   +1 more source

Influence of overflooding ratios on fruit damage and population growth of Thaumatotibia leucotreta (Meyrick): implications for the sterile insect technique program

Pest Management Science, EarlyView.
Number of infested fruits, larval entries and F1 adults decreased as sterile males increased. Control cages had higher fecundity and fertility compared to treatment cages. Release ratios, 40:1 and 60:1 can enhance the efficacy of SIT. Abstract BACKGROUND Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) is a significant pest of citrus in ...
Michael M. Githae, Candice A. Coombes, Reyard Mutamiswa, Sean D. Moore, Martin P. Hill   +4 more
wiley   +1 more source