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First field validation of Ontsira mellipes (Hymenoptera: Braconidae) as a potential biological control agent for Anoplophora glabripennis (Coleoptera: Cerambycidae) in South Carolina
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First field validation of Ontsira mellipes (Hymenoptera: Braconidae) as a potential biological control agent for Anoplophora glabripennis (Coleoptera: Cerambycidae) in South Carolina
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First field validation of Ontsira mellipes (Hymenoptera: Braconidae) as a potential biological control agent for Anoplophora glabripennis (Coleoptera: Cerambycidae) in South Carolina
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Journal Article
First field validation of Ontsira mellipes (Hymenoptera: Braconidae) as a potential biological control agent for Anoplophora glabripennis (Coleoptera: Cerambycidae) in South Carolina
2025
Overview
The Asian longhorned beetle,
(Motschulsky) (Coleoptera: Cerambycidae), is an invasive woodboring beetle present in several areas in North America. The typical management strategy for this pest involves eradicating incipient
.
populations from a detected area by removing all infested and high-risk hosts, and therefore, all beetles. While effective, this method may not work in all areas, particularly those that are perpetually wet or swampy and where access for tree removal is limited. Biological control may be a viable and complimentary management strategy in these areas, as natural enemies act on a landscape scale rather than individual trees. Recently, a native parasitoid,
Ashmead (Hymenoptera: Braconidae), was found parasitizing
.
and shows effective host-finding behavior under controlled conditions. The active
.
infestation in South Carolina, U.S. provides an opportunity to conduct the first field validation of the ability of
to find and use
.
as a host. Adult
were released on several trees infested with
.
in the South Carolina quarantine zone in summer 2023, and after 3 weeks trees were destructively sampled. Two
.
larvae were found to be attacked by
, a result confirmed by DNA sequencing. This represents the first field validation that laboratory-reared
can and will attack and use wild
.
as hosts. While additional research is needed to identify optimal release timing, and to determine the efficacy of
as a biological control agent, these results suggest this strategy may be a useful supplement to the current
.
management strategy.
Publisher
De Gruyter
