Results 91 to 100 of about 36,396 (261)

Effects of β-sitosterol on growth, development and midgut enzymes of Helicoverpa armigera Hübner

Archives of Biological Sciences, 2020
Helicoverpa armigera is a global agricultural pest of serious concern. Continued use of chemical insecticides as control measures has raised grave health and environment concerns, necessitating a search for botanicals as safe alternatives.
M. Mishra, Aarti Sharma, Vinay Singh Dagar, Sarita Kumar   +3 more
semanticscholar   +1 more source

Etat des recherches sur la résistance d'Helicoverpa armigera (Hubner) aux pyrethrinoides en Afrique de l'Ouest [PDF]

, 1998
L'introduction des pyréthrinoïdes sur le marché des pesticides depuis 1975 et l'exceptionnel niveau de contrôle ainsi obtenu comme les coûts comparés des divers modes de protection ont relégué les méthodes biologiques au second plan, et placé la culture ...
Martin, Thibaud, Vaissayre, Maurice, Vassal, Jean-Michel   +2 more
core   +1 more source

Species-specific evolution of lepidopteran TspC5 tetraspanins associated with dominant resistance to Bacillus thuringiensis toxin Cry1Ac

Journal of Integrative Agriculture
Transgenic crops producing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) have proven to be highly effective in managing some key pests.
Chenyang Wang, Yinuo Zhang, Qiming Sun, Lin Li, Fang Guan, Yazhou He, Yidong Wu   +6 more
doaj   +1 more source

Feeding deterrent and growth inhibitory activities of PONNEEM, a newly developed phytopesticidal formulation against Helicoverpa armigera (Hubner)

Asian Pacific Journal of Tropical Biomedicine, 2014
Objective: To assess the feeding deterrent, growth inhibitory and egg hatchability effects of PONNEEM on Helicoverpa armigera (H. armigera). Methods: Five oil formulations were prepared at different ratios to assess the feeding deterrent, growth ...
Soosaimanickam Maria Packiam, Kathirvelu Baskar, Savarimuthu Ignacimuthu   +2 more
doaj   +1 more source

Progress in understanding hormonal regulation during the postembryonic development of Helicoverpa armigera

Journal of Integrative Agriculture, 2020
Lepidoptera, with 0.16 million species, is the second largest order of insecta. This order includes silk worms, butterflies, and many agricultural pests. The cotton bollworm, Helicoverpa armigera (Hübner) is one of the pests in Lepidoptera that seriously
Xiao-fan ZHAO
doaj   +1 more source

MicroRNA‐375‐3p Targets Fatty Acid Synthase and Relish to Regulate Energy Allocation During Pupal Metamorphosis and Starvation

Advanced Science, Volume 13, Issue 20, 9 April 2026.
During pupal metamorphosis and starvation, elevated 20‐hydroxyecdysone (20E) and suppressed insulin trigger Forkhead box O (FOXO) nuclear translocation, enhancing miR‐375‐3p expression. This downregulates fatty acid synthase (FASN) and Relish, promoting lipid breakdown for energy while prioritizing antioxidant responses over immune functions to support
Peng Chen, Meiqi Cheng, Jianhui Wang, Jing Tang, Xiaoqiao Huang, Yusi Li, Huiling Zhou, Ling Zhang, Yi Dong, Chengjun Li, Bin Li   +10 more
wiley   +1 more source

Monitoring insecticide resistance in the bollworm Helicoverpa armigera (Hübner) from 1998 to 2002 in Cote d'Ivoire, West Africa [PDF]

, 2004
Helicoverpa armigera (Hübner) is the major insect pest of the cotton crop in West Africa. Populations recently developed resistance to pyrethroids via the overproduction of oxidases.
Fournier, Didier, Martin, Thibaud, Ochou, Germain O., Vaissayre, Maurice   +3 more
core  

Monitoring resistance of Helicoverpa armigera to different insecticides used in cotton in Spain [PDF]

, 2010
Helicoverpa armigera is the key pest of cotton in Spain, resulting in many insecticide treatments against it. The resistance status of H. armigera to different insecticides currently used in cotton was evaluated in Spain in two different seasons, 1999 ...
Avilla Hernández, Carlos, González Zamora, José Enrique   +1 more
core   +1 more source

Systematic Engineering of Proteases in Saccharopolyspora Spinosa Reveals Synergistic Enhancement of Spinosad Biosynthesis via Substrate Flux Optimization

Advanced Science, Volume 13, Issue 20, 9 April 2026.
ARTP mutagenesis yielded Saccharopolyspora spinosa mutant D184 with improved extracellular nitrogen utilization. An integrated workflow of protease genetic manipulation, multi‐omics, and rational synergy design pinpointed a pepP‐clpP‐htpX synergistic triangular combination.
Duo Jin, Wangqiong Chen, Danlu Yang, Qing Liu, Baolong Bai, Zirui Dai, Xirong Liu, Zirong Zhu, Jie Rang, Liqiu Xia   +9 more
wiley   +1 more source

Life Table and Consumption Capacity of Corn Earworm,Helicoverpa armigera, Fed Asparagus,Asparagus officinalis [PDF]

, 2014
The life table and consumption rate of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) reared on asparagus, Asparagus officinalis L. (Asparagales: Asparagaceae) were studied under laboratory conditions to assess their interaction.
Chi, Hsin, Jha, Ratna Kumar, Tang, Li-Cheng, Tuan, Shu-Jen   +3 more
core   +1 more source