Neotropical Realm Distribution of Spodoptera frugiperda Under Climate Change and Implications for Future Food Security, Pest Management and Biodiversity DOI Creative Commons
Sanad H. Ragab,

Michael G. Tyshenko

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 19, 2023

Abstract The fall armyworm (FAW), Spodoptera frugiperda (J.E.Smith) in combination with climate change impacts poses a significant threat to agricultural productivity, ecoregion habitat, and biodiversity the Neotropical Realm. This study presents an assessment of distribution Neotropics under influence change. To conduct this analysis our methodology used 19 bioclimatic variables, altitude, land cover evaluate habitat suitability across Neotropics. By comparing four future scenarios against current baseline scenario, we determined potential changes Gain, Unsuitability, Stability, Loss for within eight Neotropic ecoregions. results have implications both food security as will continue be pest Our findings emphasize ongoing that is expected persist potentially expand some areas scenarios. Integrated Pest Management (IPM) strategies can mitigate losses combat insecurity arising from crop pest. FAW indiscriminate defoliator its control help reduce loss synergistic altered habitats insect defoliation.

Language: Английский

Global scientific progress and shortfalls in biological control of the fall armyworm Spodoptera frugiperda DOI Creative Commons
Kris A. G. Wyckhuys, Komivi Senyo Akutse, Divina Amalin

et al.

Biological Control, Journal Year: 2024, Volume and Issue: 191, P. 105460 - 105460

Published: Feb. 14, 2024

Since 2016, the fall armyworm (FAW) Spodoptera frugiperda has spread over extensive areas of tropics and subtropics, imperiling food security, economic progress livelihoods millions cereal farmers. Although FAW received long-standing scientific attention in its home range Americas, chemical inputs feature prominently mitigation biological control uptake is globally lagging. Here, building upon a quantitative review global literature, we methodically dissect science. Of known entomopathogens (46), parasitoids (310) predators (215) FAW, approx. 40% have been subject to laboratory- or field-level scrutiny. Laboratory-level performance partially assessed for 14–18% above invertebrate taxa. Yet, organismal, geographic, methodological thematic biases hamper efforts relate in-field animal biodiversity services. Often, single-guild 'snapshot' surveys are preferred comprehensive bio-inventories population dynamics appraisals, trophic interactions remain undocumented, standard pest infestation metrics lacking natural enemy censuses performed arbitrarily. Diurnal biota receive inordinate attention, while egg pupal predation - main biotic sources mortality routinely overlooked. Multiple microbial investigated with view towards mass-rearing augmentative release. Meanwhile, conservation receives marginal cross-disciplinary engagement agroecology domain We lay out several steps, including standardized methodologies, smart use biodemographic toolkits, networked field trials fortification ecological underpinnings, sharpen science urge further momentum implementation.

Language: Английский

Citations

19
Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India DOI Creative Commons
Subhajit Pal,

Swarnali Bhattacharya,

Tapamay Dhar

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Feb. 18, 2024

Abstract Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) has significantly affected maize crop yields, production efficiency, and farmers’ incomes in the Indian Eastern Gangetic Plains region since it was first observed India 2018. A lack of awareness by growers appropriate selection, method, timing insecticide application not only creates a barrier to sustainable FAW control but also contributes increased environmental pollution, reduced human health costs. We demonstrated that inflicted most damage early whorl growth stage maize, regardless whether chemical insecticides were applied. egg masses larvae collected from fields which no had been sprayed showed high parasitism rates parasitoid wasps; contrast much lower on FAW. Ten hymenopteran parasitoids across study region, suggesting diversity natural methods suppress at different stages. These included two eight larval parasitoids. Microplitis manilae Ashmead abundant species, Telenomus cf. remus dominant species. Endemic such as those this have great potential part sustainable, cost-effective agroecological management strategy, can be integrated with other achieve effective

Language: Английский

Citations

7
Biorationals and Synthetic Insecticides for Controlling Fall Armyworm and Their Influence on the Abundance and Diversity of Parasitoids DOI Open Access
M. Otim, Angella Lowra Ajam, Geofrey Ogwal

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(8), P. 3118 - 3118

Published: April 9, 2024

Spodoptera frugiperda (fall armyworm, FAW) is a significant economic pest of maize in Uganda. Many Ugandan farmers employ synthetic insecticides as their main form control despite the negative impacts these chemicals. We tested effectiveness Beauveria bassiana; General Biopesticide Cocktail (mixture B. bassiana, M. anisopliae, Isaria fumosoroseus, Lecanicillium lecani and Purporeocillium lilacanus three strains Metarhizium Nimbecidine® (azadirachtin 0.03%EC), Roket® (cypermethrin 4% profenofos 40%); Amdocs® (emamectin benzoate 2% abamectin 1%) on fall armyworm parasitoids, respectively, 2020 2021. The treatments with greatest decrease leaf damage infestation were Roket®, followed by Nimbecidine®. biopesticides not always more effective than untreated control, though; efficacy was often lower that botanical pesticides. recovered one egg parasitoid, Telenomus remus, seven egg-larval parasitoids (Coccygidium luteum, Coccygidium sp., Cotesia icipe, Chelonus Micranisa Charops cf. diversipes, an unidentified Tachinidae). Among these, C. cf icipe Tachinidae most abundant. Parasitism low, averaging 10% for masses 5.3% larvae. Application pesticides resulted higher yield when compared control. In general, low population observed. Although parasitoid reduced plots treated percentage parasitism FAW affected. some instances, yields realized plots. Pest management practices compatible biological need to be considered armyworm.

Language: Английский

Citations

4
Optimizing insecticide application for effective fall armyworm (Spodoptera frugiperda) management in Sorghum: a field study on spray frequency and rates DOI Creative Commons
Aderajew Mihretie,

Admasie Kassaw,

Abebe Ayalew

et al.

Discover Agriculture, Journal Year: 2025, Volume and Issue: 3(1)

Published: Jan. 11, 2025

A field experiment was conducted to assess the impact of spray frequency and application rates Agro-lambacin (Agro-lambacin Super 315 EC, containing profenfos 30% lambda-cyhalothrin 1.5%) insecticide on management Fall Armyworm (Spodoptera frugiperda) in Sorghum. The study evaluated foliar 0.2 L ha⁻1, 0.4 0.6 with frequencies once, twice, thrice, alongside an untreated control. This carried out at Sirinka Kobo sites using a randomized complete block design three replications during main cropping season 2020 (July November). armyworm (FAW) larval infestation, damage, Sorghum head weight, overall yield were recorded. Results indicated significant variations across treatments. Notably, three-time ha⁻1 consistently resulted lower mean populations per plant reduced damage throughout season. These treatments also yielded higher grain yield, percentage increases 29.47% 20.76%, respectively, compared control Kobo. In contrast, while treatment effects evident regimes, did not reflect this due ongoing infestations after completion applications. Therefore, three-times Agro-lambacin, starting approximately 22 days planting ten-day intervals, manufacturer's recommended rate or increased is deemed effective economically viable for similar areas. However, Sirinka, further research necessary explore optimal sequence total number applications required FAW

Language: Английский

Citations

0
Toxicological impacts of neoteric Vip3A toxins from Bacillus thuringiensis on survival and development of Spodoptera frugiperda and S. litura DOI

C. J. Tharun Kumar,

Avin Subhash,

K. S. Rishika

et al.

Biocontrol Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17

Published: April 17, 2025

Language: Английский

Citations

0
The fall armyworm: recent advances in biology and management DOI Open Access
Subba Reddy Palli, Antonio Biondi, Nicolas Desneux

et al.

Journal of Pest Science, Journal Year: 2023, Volume and Issue: 96(4), P. 1341 - 1343

Published: Aug. 19, 2023

Language: Английский

Citations

10
Bioassay-Guided and DeepSAT-Driven Precise Mining of Monoterpenoid Coumarin Derivatives with Antifeedant Effects from the Leaves of Ailanthus altissima DOI

Zhi-Kang Duan,

Xu Wang,

Mei-Ya Lian

et al.

Journal of Agricultural and Food Chemistry, Journal Year: 2024, Volume and Issue: 72(19), P. 10958 - 10969

Published: May 4, 2024

Demand for the exploration of botanical pesticides continues to increase due detrimental effects synthetic chemicals on human health and environment development resistance by pests. Under guidance a bioactivity-guided approach HSQC-based DeepSAT, 16 coumarin derivatives were discovered from leaves

Language: Английский

Citations

3
Economic impacts and management of fall armyworm (Spodoptera frugiperda) in smallholder agriculture: a panel data analysis for Ghana DOI Creative Commons
Justice A. Tambo, Monica K. Kansiime, Idah Mugambi

et al.

CABI Agriculture and Bioscience, Journal Year: 2023, Volume and Issue: 4(1)

Published: Oct. 2, 2023

Abstract Background Fall armyworm ( Spodoptera frugiperda ; FAW), a native pest of the Americas, invaded West Africa about 7 years ago and spread rapidly across rest sub-Saharan (SSA) several countries in Asia Oceania. Early cross-sectional studies reported that causes severe damage to maize, stimulating widespread use synthetic pesticides smallholder farming systems. Using panel data from Ghana, this paper assessed impact FAW on maize productivity changes strategies adopted by farmers for management pest. Methods Household collected two rounds (2018 2020) 370 maize-growing households Ghana were used. The dynamics infestation practices applied analysed descriptively, while regression methods, such as fixed effects correlated random models, used estimate effect productivity. Results We found evidence reduced intensity pesticide use, increased protective equipment when spraying pesticides, adoption biopesticides cultural management, line with recommended integrated solutions. analysis showed after controlling other determinants unobserved heterogeneity, negative is not statistically significant. Conclusions Our findings suggest better knowledge more sustainable environmentally-friendly solutions, yield losses due are initially reported.

Language: Английский

Citations

7
Bionomic responses of Spodoptera frugiperda (J. E. Smith) to lethal and sublethal concentrations of selected insecticides DOI Creative Commons
Kokou Rodrigue Fiaboe, Ken Okwae Fening, W.S.K. Gbewonyo

et al.

PLoS ONE, Journal Year: 2023, Volume and Issue: 18(11), P. e0290390 - e0290390

Published: Nov. 15, 2023

Since 2016, the invasive insect Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) from Americas has made maize production unattainable without pesticides in parts of Sub-Saharan Africa and Asia. To counteract this pest, farmers often resort to use hazardous pesticides. This study aimed investigate botanicals, microbials, semi-synthetic insecticides Ghana for pest control harming local ecosystems. Under laboratory on-station conditions, present evaluated acute sublethal responses S. to: (i) Pieris rapae Granulovirus (PrGV) + Bacillus thuringiensis sub sp. kurstaki (Btk) 5 WP, (ii) Btk monosultap 55 (iii) ethyl palmitate SC, (iv) azadirachtin 0.3 (v) acetamiprid (20 g/l) λ-cyhalothrin (15 35 EC, (vi) (30 indoxacarb (16 46 (vii) emamectin benzoate 1.9 EC. The results showed that at 96 hours post-exposure benzoate-based formulation highest larvicidal effect with lower LC50 values 0.019 mL/L. However, suggested strong effects PrGV Btk, azadirachtin, on bionomics frugiperda. Two seasons experiments, bioinsecticide are good candidates managing promising efficacy demonstrated they viable options pest.

Language: Английский

Citations

6
One stone for two birds: Endophytic fungi promote maize seedlings growth and negatively impact the life history parameters of the fall armyworm, Spodoptera frugiperda DOI Creative Commons

Sharon Wanjiru Kinyungu,

Ayaovi Agbessenou,

Sevgan Subramanian

et al.

Frontiers in Physiology, Journal Year: 2023, Volume and Issue: 14

Published: Oct. 12, 2023

The fall armyworm (FAW) Spodoptera frugiperda , is a voracious pest of cereals native to the Americas and which invaded Africa in 2016. Chemical control main management option, however remains ineffective unsustainable. Fungal endophytes are increasingly used as alternative for insect pests economic importance. This study assessed potential eight endophytic fungal isolates colonize maize plant their ability promote seedlings growth through seed foliar inoculations, well suppressive effects on FAW. colonization rates different parts by varied per inoculation methods. Beauveria bassiana ICIPE 279 colonized more than 60% all seedling while B . G1LU3 only stem (25%) leaf (5%) tissues inoculation. Trichoderma atroviride F2S21, T. asperellum M2RT4, harzianum F2R41, sp. F2L41, Hypocrea lixii F3ST1 Fusarium proliferatum F2S51 successfully therefore were selected further evaluated persistence, effect growth, pathogenicity immature adult stages. Weekly assessment showed parameters compared control. During first week, percentage ranges between 90%–100%, 65%–100%, 60%–100%, roots, stems, leaves, respectively five tested isolates. However, pattern/rates significantly decreased over time H. stems F2R41 leaves M2RT4 roots. In addition, outperformed other boosting height, whereas increasing wet dry shoots weight. Furthermore, number egg masses laid endophytically-colonized plants among treatments. reduced defoliation/feeding Additionally, had highest negative impact pupation emergence S. with female-biased sex ratio. Our findings indicate that hold be developed endophytic-fungal-based biopesticides sustainable promoters.

Language: Английский

Citations

4