Results 51 to 60 of about 21,134 (225)

Role of mitochondrial complex I genes in host plant expansion of Bactrocera tau (Tephritidae: Diptera) by CRISPR/Cas9 system

Insect Science, EarlyView.
The role of 3 mitochondrial complex I gene in host expansion of Bactrocera tau was verified by CRISPR/Cas9 gene editing system. A stable homogenous strain (Btndufa7‐/‐) of B.tau was established after silencing Ndufa7. The reduced size of larvae and pupae of Ndufa7 knockout strain was first found.Then different levels of fitness and relative expression ...
Wei Shi, Linsheng He, Ruixiang Li, Jun Cao   +3 more
wiley   +1 more source

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

Is Helicoverpa armigera (Lepidoptera: Noctuidae) in Brazil? First detailed molecular detection report [PDF]

, 2013
The cotton bollworm, Helicoverpa armigera, is a quarantine agricultural pest for the American continents. It is thought to have invaded the American continents and led the founding of current H.
Anderson, Craig, Behere, Gajanan T., Silvie, Pierre, Soria, Miguel F., Tay, Wee Tek, Thomazoni, Danielle, Walsh, Thomas   +6 more
core  

Insights on the nutritional ecology of a nocturnal pollinating insect

Insect Science, EarlyView.
Nutritional ecology examines the environmental effects on nutritional needs, food intake and foraging behaviors, and the use of nutrients ingested by animals. Among insects, Lepidoptera are often considered opportunistic foragers that visit a wide variety of available flowers, although with some preferences.
Evan Force, Caroline Suray, Charlotte Girardin, Michel B.C. Sokolowski, Matthieu Dacher   +4 more
wiley   +1 more source

Calcineurin-Modulated Antimicrobial Peptide Expression Is Required for the Development of Helicoverpa armigera

Frontiers in Physiology, 2019
Helicoverpa armigera is a universal pest around the world that has been extensively used as a model organism for agricultural pests. Calcineurin (CAN) is an important Ca2+-dependent phosphatase that is participated in various biological pathways.
Jizhen Wei, Linhong Li, Shuangyan Yao, Shuo Yang, Shuai Zhou, Xiaoguang Liu, Mengfang Du, Shiheng An   +7 more
doaj   +1 more source

Exploring the potential of seed flour from pigeon pea genotypes to retard the growth and development of Helicoverpa armigera [PDF]

, 2014
Helicoverpa armigera is one of the most devastating known pest causing major economic losses. Development of insect resistance against chemical pesticides and the environment concerns are forcing researchers to pave way towards biopesticides.
Grewal, Satvir Kaur, Grover, Sheetanshu, Gupta, Anil Kumar, Taggar, Gaurav Kumar   +3 more
core   +2 more sources

Molecular mechanisms of sex determination in Lepidoptera: current status and perspectives

Insect Science, EarlyView.
The genetic basis of sex determination in Lepidoptera was discovered in 2014 in the silkworm Bombyx mori. In this model species, the W chromosome‐derived small piRNA called Fem piRNA downregulates the expression of a Z‐linked gene, Masculinizer (Masc), which leads to the default female‐specific splicing of the doublesex gene (dsxF) and thus to female ...
František Marec, Atsuo Yoshido, Arjen E. van′t Hof   +2 more
wiley   +1 more source

Occurrence of Helicoverpa armigera (Hübner, 1808) on citrus in the state of Sao Paulo, Brazil

Revista Brasileira de Fruticultura, 2014
The occurrence of Helicoverpa armigera (Hübner, 1808) was first reported in citrus orchard in the state of São Paulo (SP). High infestation levels of H. armigera were observed in October 2012, in the city of Botucatu, SP.
Regiane Cristina Oliveira de Freitas Bueno, Pedro Takao Yamamoto, Marina Mouzinho Carvalho, Nádia Maebara Bueno   +3 more
doaj   +1 more source

Toxicological studies on Helicoverpa armigera in pigeonpea growing in Vidarbha region of Maharashtra, India [PDF]

, 2017
Insecticide resistance level in pigeonpea pod borer, Helicoverpa armigera (Hubner) to technical grade insecticides collected from major pigeonpea growing districts of Vidarbha viz., Akola, Amravati, Buldhana, Yavatmal and Washim was worked out.
Lande, S. S., Salunke, P. B., Wadaskar, R. M.   +2 more
core   +2 more sources

DsiRNA‐mediated silencing of Ceratitis capitata transformer or transformer‐2 leads to masculinization of XX embryos and systemic gene silencing in ovaries

Insect Science, EarlyView.
We carried out functional studies using Dicer‐substrate small interfering RNAs (DsiRNAs), targeting the sex determination genes Cctransformer (Cctra) and Cctransformer‐2 (Cctra‐2) in the Mediterranean fruit fly (Ceratitis capitata). Microinjection of DsiRNAs into XX embryos (0‐1 h old) rapidly triggered the expression of male‐specific Cctra isoforms ...
Gennaro Volpe, Sarah Maria Mazzucchiello, Domenico De Falco, David Torrente, Stefania Liguori, Noemi Rosati, Dora Baccaro, Michela Mazzeo, Fulvio Bertolotto, Harshini Sangle, Ennio Giordano, Angela Carfora, Francesca Lucibelli, Marianna Varone, Paola Di Lillo, Hugo Diego Perdomo, Mariangela Bonizzoni, Serena Aceto, Marco Salvemini, Molly Duman‐Scheel, Giuseppe Saccone   +20 more
wiley   +1 more source