scholarly journals Indigenous Natural Enemies Attacking Fall Armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in Ghana

2020 ◽  
Vol 18 (1) ◽  
pp. 1-7
Author(s):  
Umar Sanda Issa ◽  
Kofi Frimpong-A ◽  
Ibrahim Adama ◽  
Moses Brandford ◽  
Haruna Braimah ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Indigenous Natural Enemies ◽  
Lepidoptera Noctuidae

scholarly journals Impact of an Exotic Invasive Pest, Spodoptera frugiperda (Lepidoptera: Noctuidae), on Resident Communities of Pest and Natural Enemies in Maize Fields in Kenya

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1074
Author(s):  
Bonoukpoè Mawuko Sokame ◽  
Boaz Musyoka ◽  
Julius Obonyo ◽  
François Rebaudo ◽  
Elfatih M. Abdel-Rahman ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Invasive Pest ◽  
Growth Stages ◽  
Insect Communities ◽  
Exotic Invasive Species ◽  
Before And After ◽  
Exotic Invasive ◽  
Lepidoptera Noctuidae

The interactions among insect communities influence the composition of pest complexes that attack crops and, in parallel, their natural enemies, which regulate their abundance. The lepidopteran stemborers have been the major maize pests in Kenya. Their population has been regulated by natural enemies, mostly parasitoids, some of which have been used for biological control. It is not known how a new exotic invasive species, such as the fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera, Noctuidae), may affect the abundance and parasitism of the resident stemborers. For this reason, pest and parasitism surveys have been conducted, before and after the FAW invaded Kenya, in maize fields in 40 localities across 6 agroecological zones (AEZs) during the maize-growing season, as well as at 3 different plant growth stages (pre-tasseling, reproductive, and senescence stages) in 2 elevations at mid-altitude, where all maize stemborer species used to occur together. Results indicated that the introduction of the FAW significantly correlated with the reduction of the abundance of the resident communities of maize stemborers and parasitoids in maize fields; moreover, the decrease of stemborer density after the arrival of FAW occurred mostly at both reproductive and senescent maize stages. It also suggests a possible displacement of stemborers by FAW elsewhere; for example, to other cereals. However, since this study was conducted only three years after the introduction of the FAW, further studies will need to be conducted to confirm such displacements.

First report of the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), natural enemies from Africa

2018 ◽  
Vol 142 (8) ◽  
pp. 800-804 ◽  
Author(s):  
Birhanu Sisay ◽  
Josephine Simiyu ◽  
Peter Malusi ◽  
Paddy Likhayo ◽  
Esayas Mendesil ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
First Report ◽  
Lepidoptera Noctuidae

scholarly journals Natural Enemies of Fall Armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in Different Agro-Ecologies

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 509
Author(s):  
Albert Fomumbod Abang ◽  
Samuel Nanga Nanga ◽  
Apollin Fotso Kuate ◽  
Christiant Kouebou ◽  
Christopher Suh ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Development Time ◽  
Fall Armyworm ◽  
Spodoptera Eridania ◽  
Southern Armyworm ◽  
Parasitism Rates ◽  
Emergency Actions ◽  
Indigenous Natural Enemies ◽  
Telenomus Remus

Fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) and southern armyworm (SAW) Spodoptera eridania (Stoll) have become major threats to crops in Africa since 2016. African governments adopted emergency actions around chemical insecticides, with limited efforts to assess the richness or roles of indigenous natural enemies. Field surveys and laboratory studies were conducted to identify and assess the performance of parasitoids associated with spodopterans in Cameroon. FAW was the most abundant spodopteran pest. Telenomus remus (Nixon), Trichogramma chilonis (Ishi), Charops sp. (Szépligeti), Coccygidium luteum (Cameron), Cotesia icipe (Fernandez & Fiaboe), and Cotesia sesamiae (Cameron) are the first records in the country on spodopterans. Telenomus remus, T. chilonis, C. icipe, and Charops sp. were obtained from both FAW and SAW; C. luteum and C. sesamiae from FAW. The distribution of spodopterans, their endoparasitoids, and parasitism rates varied with host, season and location. In the laboratory, T. remus showed significantly higher parasitism on FAW than SAW, and significant differences in the development parameters between the two host eggs, with shorter development time on FAW. It induced significant non-reproductive mortality on FAW but not on SAW. Developmental parameters showed that C. icipe has a shorter development time compared to other larval parasitoids. Implications for conservative and augmentative biocontrol are discussed.

scholarly journals Occurrence of natural enemies of fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) in Nigeria

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254328
Author(s):  
Akindele Oluwole Ogunfunmilayo ◽  
Shakiru Adewale Kazeem ◽  
Joy Ejemen Idoko ◽  
Raphael Abiodun Adebayo ◽  
Elizabeth Yetunde Fayemi ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Management Strategies ◽  
Fall Armyworm ◽  
Parasitic Mite ◽  
Maize Plants ◽  
Staple Crop ◽  
Lepidoptera Noctuidae ◽  
Eggs And Larvae ◽  
Telenomus Remus

Fall armyworm (FAW; Spodoptera frugiperda), an exotic moth which recently invaded Africa, is a highly destructive pest of cereals especially maize a highly valued staple crop in Nigeria. The use of natural enemies such as predators or parasitoids for FAW control is more economically viable and environmentally safer than currently recommended synthetic insecticides. Natural enemies to combat the pest have not yet been reported in Nigeria. An exploration for the pests’ natural enemies was undertaken by collecting FAW eggs and larvae from maize fields. These were reared in the laboratory for emergence, identification and efficacy as natural enemies. This yielded Euplectrus laphygmae (Hymenoptera: Eulophidae); Telenomus remus (Hymenoptera: Platygastridae) and Trombidium sp. (Acari.: Trombidiidae). Cotesia or Apanteles spp. were inferred to occur since Stictopisthus sp. (Hym.: Ichneumonidae), a secondary parasitoid, that attacks cocoons of Microgasterinae (e.g. Cotesia, Apanteles etc.) also emerged. Species of yet-to-be identified predators were also observed in various niches of maize plants. A positive relationship was found between FAW instar and the number of E. laphygmae eggs/instar ranging, on average, from 1.5 on second instar to 5.5 on fourth instars hosts. Parasitism rate of T. remus on FAW eggs was 100%. Parasitic mite infestation resulted in increasing paleness, reduced feeding, growth and movement as well as death of FAW 1st instars. Thus, the occurrence of FAW natural enemies in Nigeria calls for advocacy campaign to incorporate their use into integrated pest management strategies that attract and allow natural enemies to thrive for FAW management.

scholarly journals Natural Enemies of the Fall Armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Ghana

2020 ◽  
Vol 103 (1) ◽  
pp. 85 ◽  
Author(s):  
Djima Koffi ◽  
Rosina Kyerematen ◽  
Vincent Y. Eziah ◽  
Komi Agboka ◽  
Medetissi Adom ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Lepidoptera Noctuidae

scholarly journals Integrated pest management options for the fall armyworm Spodoptera frugiperda in West Africa: Challenges and opportunities. A review

2021 ◽  
pp. 192-207
Author(s):  
Besmer Régis Ahissou ◽  
Wendnéyidé Mathieu Sawadogo ◽  
Aimé H. Bokonon-Ganta ◽  
Irénée Somda ◽  
François Verheggen
Keyword(s):  
West Africa ◽  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Smallholder Farmers ◽  
Insect Pest ◽  
Fall Armyworm ◽  
Control Measures ◽  
Management Options ◽  
Challenges And Opportunities ◽  
Indigenous Natural Enemies

Introduction. The fall armyworm Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) is a voracious and generalist insect pest native to America. It was first detected in West Africa in 2016 and rapidly spread across the continent. The indiscriminate use of chemical insecticides poses risks to human health and threatens the few natural enemies present in these environments. Despite the existence of alternative control measures in America (e.g. genetically modified maize), efforts are needed to develop environmentally friendly approaches that are affordable for smallholder farmers and compatible with the African context. Literature. In this literature review, we describe the potential of the available alternative controls methods which include cultural, physical, biological and semiochemical strategies. The potential of their association is discussed considering their cost-benefice balance and local economic and agricultural context. Conclusions. Several affordable mitigation options could be implemented rapidly, pending proper communication efforts, including (i) the promotion of indigenous natural enemies by promoting refuges and training smallholder farmers on their identification; (ii) cultural methods, mainly by planting directly after the main rainfalls, as well as performing intercropping and crop rotation; and (iii) the use of microbial biopesticides, and avoiding some of the already identified ineffective chemical insecticides.

scholarly journals Impact of the number of Spodoptera frugiperda egg layers on parasitism by Trichogramma atopovirilia

2005 ◽  
Vol 62 (2) ◽  
pp. 190-193 ◽  
Author(s):  
Eduardo Barbosa Beserra ◽  
José Roberto Postali Parra
Keyword(s):  
Biological Control ◽  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Egg Parasitoids ◽  
Egg Masses ◽  
Control Programs ◽  
The Impact ◽  
Lepidoptera Noctuidae

Egg parasitoids of the genus Trichogramma (Hymenoptera: Trichogrammatidae) can be found in several crops attacking Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) eggs. It is therefore necessary to demonstrate the capacity of these natural enemies in suppressing populations of the pest to allow them to be used in biological control programs against that species. This work had the objective of evaluating the impact of egg layer distribution in S. frugiperda egg masses on the parasitism capacity of Trichogramma atopovirilia Oatman & Platner, 1983. Masses containing one, two, and three layers were used as treatments, and 1.6 parasitoid per egg of the pest were released. Parasitism percentage differences were observed among the three types of masses under study, on average 66.24 ± 8.56%, 45.20 ± 6.20%, and 40.10± 3.46% for egg masses with one, two, and three layers, respectively, demonstrating the potential of use of the parasitoid for the control of fall armyworm.

scholarly journals Euplectrus furnius parasitizing Spodoptera frugiperda in maize in Brazil

2013 ◽  
Vol 43 (11) ◽  
pp. 1958-1960
Author(s):  
Vinícius Soares Sturza ◽  
Sônia Thereza Bastos Dequech ◽  
Marcelo Teixeira Tavares ◽  
Candice Guths ◽  
Michel Pires Walker ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Insect Pest ◽  
Fall Armyworm ◽  
Maize Crop ◽  
Larval Parasitoids ◽  
Lack Of Information ◽  
Lepidoptera Noctuidae

Brazil is among the world's biggest maize producers and fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), is the main insect pest on this crop in the country. Despite the importance of its natural enemies, there still is a lack of information about parasitoids species that attack this insect-pest, such as larval parasitoids. This research reports Euplectrus furnius Walker (Hymenoptera: Eulophidae) parasitizing S. fugiperda larvae on maize crop in Brazil.

scholarly journals Natural enemies of the fall armyworm Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) in Burkina Faso

2021 ◽  
Author(s):  
Besmer Régis Ahissou ◽  
Wendnéyidé Mathieu Sawadogo ◽  
Schémaéza Bonzi ◽  
Hugues Baimey ◽  
Irénée Somda ◽  
...  
Keyword(s):  
Nous Avons ◽  
Burkina Faso ◽  
Natural Enemies ◽  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Ennemis Naturels ◽  
Sécurité Alimentaire ◽  
Champignons Entomopathogènes ◽  
Lepidoptera Noctuidae ◽  
Taux De Parasitisme

La chenille légionnaire d'automne Spodoptera frugiperda (Lepidoptera: Noctuidae) est un ravageur vorace qui se nourrit principalement de céréales et autres cultures d'importance économique. Originaire d'Amérique, elle a récemment envahi les pays d'Afrique sub-saharienne où elle menace actuellement la sécurité alimentaire. Les connaissances sur ses ennemis naturels en Afrique sont limitées. Dans cette étude, nous avons cherché à identifier les arthropodes, les champignons et les nématodes entomopathogènes qui contrôlent naturellement ce ravageur au Burkina Faso. Des échantillonnages d'insectes, y compris des larves et des masses d'œufs, ont été réalisés dans 47 champs de maïs d'octobre 2019 à novembre 2020. Une vingtaine d'espèces de parasitoïdes, de prédateurs et de champignons entomopathogènes associés à la chenille légionnaire d'automne ont été identifiées. Le taux de parasitisme global était de 10,5 %. Les nématodes (Mermithidae) étaient les parasites les plus fréquents (73,2% des larves parasitées). Les parasitoïdes identifiés comprenaient des Hyménoptères [Coccygidium luteum (Brullé), Chelonus bifoveolatus (Szépligeti)] et des Diptères (Drino sp.). Les prédateurs comprenaient des Areneae et des insectes appartenant aux familles suivantes : Carabidae (Calleida sp.), Coccinellidae [Cheilomenes sulphurea (Olivier)], Forficulidae [Diaperasticus erythrocephalus (Olivier), Forficula senegalensis (Serville)], Formicidae [Pheidole megacephala (Fabricius) et autres], Mantidae, Pentatomidae et Reduviidae (Rhynocoris sp.). Les prédateurs les plus abondants étaient les Forficulidae (51%), Formicidae (15%) et Coccinellidae (13%). Nous préconisons le développement de la lutte biologique de conservation, car cette approche peut être simple et rentable pour contrôler ce ravageur.

Sign in / Sign up

Export Citation Format

Share Document