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 ◽  
...  
Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1074
Author(s):  
Bonoukpoè Mawuko Sokame ◽  
Boaz Musyoka ◽  
Julius Obonyo ◽  
François Rebaudo ◽  
Elfatih M. Abdel-Rahman ◽  
...  

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.


2020 ◽  
Vol 18 (1) ◽  
pp. 1-7
Author(s):  
Umar Sanda Issa ◽  
Kofi Frimpong-A ◽  
Ibrahim Adama ◽  
Moses Brandford ◽  
Haruna Braimah ◽  
...  

Zootaxa ◽  
2020 ◽  
Vol 4750 (2) ◽  
pp. 293-297 ◽  
Author(s):  
ANKITA GUPTA ◽  
P. LAKSHMI SOUJANYA ◽  
CORNELIS VAN ACHTERBERG ◽  
J.C. SEKHAR

The parasitoid Coccygidium transcaspicum (Kokujev) (Hymenoptera: Braconidae: Agathidinae) was reared from fall armyworm or Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) in maize fields in South India (Telangana) during 2019. It is the first report of a host for C. transcaspicum and the first report of C. transcaspicum as a parasitoid of S. frugiperda across the globe. The present study contains the first report from India and the Oriental region, provides morphological identification details of C. transcaspicum and comparison notes from its closely allied species C. melleum (Roman) which is basically an Afrotropical species. 


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 ◽  
...  

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.


2020 ◽  
Vol 103 (1) ◽  
pp. 85 ◽  
Author(s):  
Djima Koffi ◽  
Rosina Kyerematen ◽  
Vincent Y. Eziah ◽  
Komi Agboka ◽  
Medetissi Adom ◽  
...  

2020 ◽  
Vol 52 ◽  
pp. 1-7 ◽  
Author(s):  
Bingjiao Sun ◽  
Fen Li ◽  
Xiaorui He ◽  
Fengqin Cao ◽  
Elizabeth Bandason ◽  
...  

2005 ◽  
Vol 62 (2) ◽  
pp. 190-193 ◽  
Author(s):  
Eduardo Barbosa Beserra ◽  
José Roberto Postali Parra

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.


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