eprintid: 11528
rev_number: 8
eprint_status: archive
userid: 3170
dir: disk0/00/01/15/28
datestamp: 2020-07-13 09:07:43
lastmod: 2020-07-13 09:07:43
status_changed: 2020-07-13 09:07:43
type: article
metadata_visibility: show
creators_name: Laminou, S A
creators_name: Ba, M N
creators_name: Karimoune, L
creators_name: Doumma, A
creators_name: Muniappan, R
icrisatcreators_name: Ba, M N
icrisatcreators_name: Karimoune, L
affiliation: ICRISAT (Niamey)
affiliation: University Abdou Moumouni, Niamey
affiliation: Virginia Tech, Price Fork Road, Blacksburg
country: Niger
country: Virginia
title: Parasitism of Locally Recruited Egg Parasitoids of the Fall Armyworm in Africa
ispublished: pub
subjects: F1
subjects: S8
subjects: s2.7
divisions: CRPS1
crps: CG1
full_text_status: public
keywords: Telenomus remus, Augmentative release, Biological control, Trichogrammatid, Spodoptera
frugiperda, Fall armyworm, Niger, Sorghum
note: The language editing of this manuscript by Sara Hendery is greatly appreciated.
abstract: The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae),
is an insect native to the tropical and subtropical Americas that has recently spread to Africa,
where it predominately attacks maize, sorghum and other plant species. Biological control is
an environmentally friendly way of combatting the pest and contributes to an integrated pest
management approach. In Africa, several trichogrammatid parasitoids and Telenomus remus Nixon
(Hymenoptera: Platygastridae) have been found parasitizing eggs of the FAW. In Niger, the egg
parasitoids encountered include Trichogrammatoidea sp. (Hymenoptera: Trichogrammatidae) and
Telenomus remus Nixon. Parasitism of the FAW eggs by the two egg parasitoids was assessed in
the laboratory, followed by field testing on sentinel eggs. In the laboratory, T. remus parasitized on
average 78% of FAWeggs, compared to 25% for Trichogrammatoidea sp. Telenomus remus was able to
parasitize egg masses that were fully covered with scales, while Trichogrammatoidea sp. parasitized
only uncovered egg masses. On-farm releases of T. remus in sorghum fields caused up to 64% of FAW
egg parasitism. Parasitized eggs yielded viable progeny, which can contribute to FAW egg parasitism
build-up during the cropping season. Our findings lay the groundwork for the use of T. remus in
augmentative releases against FAW in Africa.
date: 2020-07
date_type: published
publication: Insects (TSI)
volume: 11
number: 7
publisher: MDPI
pagerange: 1-13
id_number: doi:10.3390/insects11070430
refereed: TRUE
issn: 2075-4450
official_url: https://doi.org/10.3390/insects11070430
funders: CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC-CRP)
citation:   Laminou, S A and Ba, M N and Karimoune, L and Doumma, A and Muniappan, R  (2020) Parasitism of Locally Recruited Egg Parasitoids of the Fall Armyworm in Africa.  Insects (TSI), 11 (7).  pp. 1-13.  ISSN 2075-4450     
document_url: http://oar.icrisat.org/11528/1/insects-11-00430.pdf