Effectiveness of Teflubenzuron, Emamectin benzoate, and Alfa-cypermethrin on Fall Armyworm, Spodoptera frugiperda (J.E Smith) (Noctuidae: Lepidoptera), under Laboratory and Field Conditions DOI Creative Commons

A. H. Fetyan Nashwa,

Abdelal Aziza

Egyptian Academic Journal of Biological Sciences, Journal Year: 2023, Volume and Issue: 16(1), P. 133 - 139

Published: March 5, 2023

Fall armyworm, Spodoptera frugiperda (J.E Smith) (Noctuidae: Lepidoptera) has become a serious pest in maize.In our study, we evaluate the efficacy of Teflubenzuron (Nomolt ® 15% EC), Emamectin benzoate (Proclaim 5% SG) and Alfa-cypermethrin (Fastac EC) on fourth instar larvae fall armyworm (FAW), (Lepidoptera: Noctuidae) both laboratory field experiments.The results revealed that LC50 values obtained were 0.18 ppm, 0.019 mg/ml, 0.6046 mg/ml for S. treated with different concentrations Teflubenzuron, α-cypermethrin respectively.The investigates prolongation larval duration, decreasing pupation % pupal duration.Field application against was expressed as percentage reduction population residual toxicity.Conclusion study insecticide efficient can be recommended to control frugiperda.

Language: Английский

Deciphering the intricacies of chlorantraniliprole, azadirachtin and uniconazole interactions with fall armyworm in maize: a comprehensive analysis through transcriptomic and metabolomic profiling DOI Open Access
Abdul Basit, Syed Husne Mobarak,

Aroosa Khurshid

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Abstract BACKGROUND Maize is a critically important world staple food, yet its productivity exposed to notorious invasive pest of the fall armyworm ( Spodoptera frugiperda ). To discern transgenerational effects and potential control efficacy, we evaluated chlorantraniliprole, azadirachtin, uniconazole on S. development, reproduction, metabolome, larval transcriptome. RESULTS Exposure has impacted pupation, fecundity, longevity. Biochemical analysis specific enzyme activities [acetylcholinesterase (AChE), carboxylesterase (CarE), glutathione‐S‐transferase (GST), cytochrome P450 (P450)] showed very high magnitude activity changes. Chlorantraniliprole azadirachtin had prominent influences expression common genes involved in DNA replication, oxidative phosphorylation, digestion, immune reaction, endocrine system, as shown by RNA sequencing. In contrast, affected gene regulation only marginally. Besides, pesticides significantly maize plants altering their metabolome transcriptome profiles dramatically enhanced plant mortality, especially after chlorantraniliprole treatments. sequencing treated with revealed significant changes, providing insights into plant's adaptive responses alterations insect–plant interactions. CONCLUSION These results indicate complex, itself plants. findings underline integrating these compounds bio‐intensive management strategies against , implications for enhancing protection. © 2025 Society Chemical Industry.

Language: Английский

Citations

0
Joint toxicity and control efficacy of chemical pesticides and insecticidal bacteria against Spodoptera frugiperda (Lepidoptera: Noctuidae) DOI

Huizi Wu,

Xinyan Pan,

Jun Shen

et al.

Journal of Asia-Pacific Entomology, Journal Year: 2025, Volume and Issue: unknown, P. 102414 - 102414

Published: April 1, 2025

Language: Английский

Citations

0
Nanocarrier-mediated RNAi of CYP9E2 and CYB5R enhance susceptibility of invasive tomato pest, Tuta absoluta to cyantraniliprole DOI Creative Commons
Farman Ullah, Guru‐Pirasanna‐Pandi Govindharaj, Hina Gul

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: April 28, 2025

Cyantraniliprole, a second-generation anthranilic diamide, is widely used to manage lepidopteran pests, including the invasive tomato pinworm Tuta absoluta (Meyrick). However, cyantraniliprole’s resistance mechanisms and associated fitness costs in T. remain underexplored. Here, we investigated of cyantraniliprole-resistant strain (CyanRS) via nanocarrier-mediated RNA interference (RNAi). Results showed that egg incubation period developmental durations larval pupal stages were significantly prolonged CyanRS population compared susceptible (SS). Further, adult emergence, longevities male female, fecundity, hatching rate reduced individuals. The mRNA expression levels cytochrome b5 reductase ( CYB5R ) P450 CYP9E2 analyzed using RT-qPCR explore their potential involvement cyantraniliprole . Phylogenetic motif analysis indicated evolutionary functional conservation with other insect species, especially Lepidopterans. Notably, nanocarrier-encapsulated dsRNA targeting genes levels. activity was substantially decreased after knockdown CYP92 genes. This increased susceptibility resistant cyantraniliprole, leading higher mortality than controls. These findings show might play key role evolution current study provides in-depth insights understand underlying this herbivore.

Language: Английский

Citations

0
Research progress of avermectin: A minireview based on the structural derivatization of avermectin DOI Creative Commons

Lili Dong,

Jianjun Zhang

Advanced Agrochem, Journal Year: 2022, Volume and Issue: 1(2), P. 100 - 112

Published: Nov. 11, 2022

Avermectins, a fermentation-derived macrocyclic lactones isolated from Streptomyces avermitilis, exhibiting long history as biopharmaceuticals used in agriculture, medical and veterinary fields. Due to the significant biological activity low mammalian toxicity, avermectins have been recognized one of most market-competitive anthelmintics insecticides, with research related these compounds has awarded 2015 Nobel Prize Physiology or Medicine. Avermectin molecules contain multiple reaction sites, such carbon-carbon double bonds, hydroxyl groups oleandrose, facilitating further development derivatives improved physicochemical properties, bioavailability, pest spectrum, efficacy by chemical modification. Presently, thousands avermectin studied various species commercialized for crop protection pharmaceutical use. Herein, we review progress achieved on structural modification reactions summarize their structure-activity relationships. This mini-review may provide important insights into future efficient avermectin-based anthelmintics, fungicides, insecticides.

Language: Английский

Citations

17
Combined PacBio Iso-Seq and Illumina RNA-Seq Analysis of the Tuta absoluta (Meyrick) Transcriptome and Cytochrome P450 Genes DOI Creative Commons
Min Liu, Feng Xiao,

Jiayun Zhu

et al.

Insects, Journal Year: 2023, Volume and Issue: 14(4), P. 363 - 363

Published: April 6, 2023

Tuta absoluta (Meyrick) is a devastating invasive pest worldwide. The abamectin and chlorantraniliprole complex have become an alternative option for chemical control because they can enhance insecticidal activity delay increased drug resistance. Notably, pests are inevitably resistant to various types of insecticides, compound insecticides no exception. To identify potential genes involved in the detoxification T. absoluta, PacBio SMRT-seq transcriptome sequencing Illumina RNA-seq analysis complex-treated were performed. We obtained 80,492 non-redundant transcripts, 62,762 (77.97%) transcripts that successfully annotated, 15,524 differentially expressed (DETs). GO annotation results showed most these DETs biological processes life-sustaining activities, such as cellular, metabolic, single-organism processes. KEGG pathway enrichment pathways related glutathione metabolism, fatty acid amino synthesis, metabolism response absoluta. Among these, 21 P450s (11 upregulated 10 downregulated). qRT-PCR eight P450 after treatment consistent with RNA-Seq data. Our findings provide new full-length transcriptional data information further studies on detoxification-related

Language: Английский

Citations

10
Recent assessment and characterization of Tuta absoluta resistance to cartap hydrochloride DOI
Daniel Lima Pereira,

Paolo A.F. Silva,

Teófilo P. Langa

et al.

Pesticide Biochemistry and Physiology, Journal Year: 2023, Volume and Issue: 193, P. 105420 - 105420

Published: April 10, 2023

Language: Английский

Citations

7
Distribution, Residue Dynamics, and Insecticidal Efficacy of Trunk-Injected Emamectin Benzoate in Pecan Trees DOI Open Access
Liang Zhi, Zhou Xi,

Yin-Long Li

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(3), P. 535 - 535

Published: March 14, 2024

Carya illinoinensis (Wangenh.) K. Koch (Pecan), a deciduous tree native to North America, faces significant challenges from pests. This study investigated the insecticidal efficacy and food safety of using broad-spectrum insecticide emamectin benzoate via trunk injection for potential pecan pest management. Injections were given at dosages 0.4, 0.8, 1.6, 2.4 mL/cm diameter breast height (DBH), leaf samples collected 10, 30, 60, 100 days post-injection, while fruit obtained during swelling, ripening, harvest stages. We established an analytical method determination quantification content in pecans ultra-performance liquid chromatography–mass spectrometry (UPLC-MS). Leaf was significantly higher compared nuts (p ≤ 0.036). The leaves following four dosage treatments decreased over time 0.1943/0.2799 mg/kg (upper crown/lower crown), 0.1910/0.3957 mg/kg, 0.3663/0.6235 1.3988/1.9123 respectively. pesticide residues 0.4 0.8 treatment groups kernels 0.0016 0.0039 respectively, below latest European Union Regulation (0.005 mg/kg). All (0.4, DBH) feeding test caused mortalities fourth instar Hyphantria cunea (Drury) larvae. mortality rates 10 post-injection 64.7%, 73.3%, 79.3%, 84.7%, 60 26.0%, 47.3%, 53.7%, 81.7%, In summary, this successfully sensitive detection trunk-injected demonstrates its effectiveness as chemical control option against foliar insects.

Language: Английский

Citations

2
Risk assessment, cross-resistance, biochemical mechanism and fitness cost of tetraniliprole resistance in the tomato pinworm Tuta absoluta DOI
Cheng Qu,

Jiaqi Yao,

Qianyuan Zhan

et al.

Crop Protection, Journal Year: 2024, Volume and Issue: 183, P. 106756 - 106756

Published: May 23, 2024

Language: Английский

Citations

2
Comparative toxicity and enzymatic detoxification responses in Spodoptera frugiperda (Lepidoptera: Noctuidae) to two insecticides DOI Creative Commons
Qiangyan Zhang, Fawu Wang, Inzamam Ul Haq

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 284, P. 116917 - 116917

Published: Aug. 24, 2024

The fall armyworm (FAW), Spodoptera frugiperda Smith (Lepidoptera: Noctuidae), poses a significant threat to food security, necessitating effective management strategies. While chemical control remains primary approach, understanding the toxicity and detoxification mechanisms of different insecticides is crucial. In this study, we conducted leaf-dipping bioassays assess quinalphos beta-cypermethrin·emamectin benzoate (β-cyp·EMB) on S. larvae. Additionally, assessed response alterations in CarE, GST, MFO, AChE activities sublethal concentrations these over various treatment durations. Results indicated that β-cyp·EMB exhibited higher than frugiperda. Interestingly, highest were observed at 6 h exposure LC

Language: Английский

Citations

2
Modelling potential distribution of Tuta absoluta in China under climate change using CLIMEX and MaxEnt DOI Open Access
Jinyu Zhao, Li Ma, Chengfei Song

et al.

Journal of Applied Entomology, Journal Year: 2023, Volume and Issue: 147(10), P. 895 - 907

Published: Sept. 14, 2023

Abstract The Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) originated in South America and is a major pest of the economically critical solanaceous crops. It devastating to tomatoes, attacking mainly leaves, stems, flowers fruits tomato plants, can cause up 100% damage. T. invaded China 2017 expanded rapidly, severely impacting industry. To illustrate detailed potential distribution China, we used CLIMEX MaxEnt models predict this using historical future climate data. predicts wider area for than MaxEnt, which suggests that most suitable its distribution, except Tarim Basin southern Xinjiang, western Inner Mongolia northwestern Gansu. Both accurately predicted known provinces Yunnan Guangxi, predictions by both suggest total range increase slightly with changes temperature. These will help understand influence change on thus provide theoretical foundation developing early monitoring, quarantine control strategies.

Language: Английский

Citations

6