Data from: Host specificity of Aphelinus species considered for introduction to control Diuraphis noxia

Metadata Updated: February 4, 2022

Diuraphis noxia, the Russian wheat aphid, has become a major pest of wheat and barley since first being detected in the western USA in 1986. However, it is rarely a pest in Eurasia, its area of origin, and research has shown that natural enemies can limit its abundance there. Among the most important of natural enemies of D. noxia in Eurasia are parasitoids in the genus Aphelinus. These data are results of laboratory experiments on host specificity of ten populations of seven species from two species complexes in the genus Aphelinus. Host specificity was not related to host plant species or the phylogenetic relatedness of the aphids or the parasitoids. While some species had very broad host ranges and others had intermediate host ranges, Aphelinus hordei had a very narrow host range, being restricted primarily to species in the genus Diuraphis, and especially D. noxia. We also report the results of experiments on the mechanisms of this host specificity. Most of the host specificity of A. hordei can be explained by differences in the behavior of females when they encountered different aphid species. Females of A. hordei rarely approach, sting, oviposit or host feed on aphids outside the genus Diuraphis, and they oviposit most frequently in D. noxia. From these results, we conclude that A. hordei is an excellent candidate for introduction into the USA to control D. noxia.

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Public: This dataset is intended for public access and use. License: Creative Commons CCZero

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Aphelinus_culture_data_grains.csv
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Aphelinus_grain_aphids_host_use.csv
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Aphelinus_hordei_host_use_round2.csv
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Aphelinus_hordei_with_Diuraphis_species.csv
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Aphelinus_hordei_behavior_summary.csv
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Aphelinus_hordei_behavior_detailed.csv
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Comma Separated Values FileCSV
data_dictionary_host_specificity_of_Aphelinus.csv
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Dates

Metadata Created Date	November 10, 2020
Metadata Updated Date	February 4, 2022

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Data.json Data.json Metadata
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Harvested from USDA JSON

Additional Metadata

Resource Type	Dataset
Metadata Created Date	November 10, 2020
Metadata Updated Date	February 4, 2022
Publisher	Agricultural Research Service
Maintainer	Hopper, Keith R.
Identifier	34759558-1958-4598-ad27-ddb28bcdf105
Data Last Modified	2019-08-23
Public Access Level	public
Bureau Code	005:18
Metadata Context	https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version	https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby	https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Dictionary	https://data.nal.usda.gov/dataset/data-host-specificity-aphelinus-species-considered-introduction-control-diuraphis-noxia/resource/6ddb6822-4316-4003-97ab-c42e5a95d732
Harvest Object Id	00b581e5-094b-4c21-b432-f1af75a2e59e
Harvest Source Id	d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
Harvest Source Title	USDA JSON
License	https://creativecommons.org/publicdomain/zero/1.0/
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Source Schema Version	1.1
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