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ARS Home » Midwest Area » Urbana, Illinois » Soybean/maize Germplasm, Pathology, and Genetics Research » Research » Publications at this Location » Publication #394922
Research Project: Identify and Characterize Resistance to Soybean Pathogens and Pests

Location: Soybean/maize Germplasm, Pathology, and Genetics Research

Title: New records of invasive aphids (Hemiptera:Aphididae) on garlic mustard in the USA

Author
item Lagos-Kutz, Doris
item TROUTMAN, REBECAH - Holden Arboretum
item Hartman, Glen

Submitted to: Insecta Mundi
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 7/3/2022
Publication Date: 7/29/2022
Citation: Lagos-Kutz, D.M., Troutman, R., Hartman, G.L. 2022. New records of invasive aphids (Hemiptera:Aphididae) on garlic mustard in the USA. Insecta Mundi. 945:1-5.

Interpretive Summary: Garlic mustard is a highly invasive weed species in the United States. It was brought from Europe in the 1800s for herbal uses and erosion control. Various insects feed on this plant including aphids. Our article presents new records of aphids on garlic mustard in the USA. This includes the garlic mustard aphid (Lipaphis alliariae) which was identified from specimens collected in Lake County, Ohio, on the invasive garlic mustard (Alliaria petiolata). The identification was confirmed using morphological and molecular data. Body color and shape of the cauda discriminated L. alliariae and L. pseudobrassicae. Further studies are needed to map out its distribution in the USA, as well as to evaluate if this aphid species has an impact on the invasive garlic mustard plant with potential as a management tool or biocontrol in the future. This information will be useful to entomologist and other scientists interested in knowing what aphids feed on garlic mustard.

Technical Abstract: Lipaphis alliariae Müller was identified from specimens collected in Lake County, Ohio, on the invasive garlic mustard, Alliaria petiolata (Bieb.) Cavara & Grande. The identification was performed on apterous viviparae using morphological and molecular data. Body color and shape of the cauda discriminated L. alliariae and L. pseudobrassicae Davis. Measurements of morphological characters of both species were similar, but they have distinct characters to be distinguished from L. erysimi Kaltenbach. Neighbor-joining analysis of cytochrome oxidase 1 (Cox1) barcoding indicated a close relationship of the aphids that feed on Brassicaceae, and the range of pair-wise distances for Cox1 barcoding of these species was 0.3–0.9%.