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Integrative taxonomy and phylogeography of Telenomus remus (Scelionidae), with the first record of natural parasitism of Spodoptera spp. in Brazil
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Integrative taxonomy and phylogeography of Telenomus remus (Scelionidae), with the first record of natural parasitism of Spodoptera spp. in Brazil
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Journal Article
Integrative taxonomy and phylogeography of Telenomus remus (Scelionidae), with the first record of natural parasitism of Spodoptera spp. in Brazil
2021
Overview
The egg parasitoid
Telenomus remus
(Hymenoptera: Scelionidae) has been investigated for classical and applied biological control of noctuid pests, especially
Spodoptera
(Lepidoptera: Noctuidae) species. Although
T. remus
was introduced into Brazil over three decades ago for classical biological control of
S. frugiperda
, this wasp has not been recorded as established in corn or soybean crops. We used an integrative approach to identify
T. remus
, combining a taxonomic key based on the male genitalia with DNA barcoding, using a cytochrome c oxidase subunit I mitochondrial gene fragment. This is the first report of natural parasitism of
T. remus
on
S. frugiperda
and
S. cosmioides
eggs at two locations in Brazil. We also confirmed that the
T. remus
lineage in Brazil derives from a strain in Venezuela (originally from Papua New Guinea and introduced into the Americas, Africa, and Asia). The occurrence of
T. remus
parasitizing
S. frugiperda
and
S. cosmioides
eggs in field conditions, not associated with inundative releases, suggests that the species has managed to establish itself in the field in Brazil. This opens possibilities for future biological control programs, since
T. remus
shows good potential for mass rearing and egg parasitism of important agricultural pests such as
Spodoptera
species.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
