The woolly elm aphid (Eriosoma americanum) is an aphid native to North America, found where Saskatoon (Amelanchier alnifolia) and American (Ulmus americana) elm trees are established. The aphid feeds on the Saskatoon elm in late spring through fall, and the American elm during both early spring and late fall. Symptoms of American elm infestations include curled elm leaves, later accompanied by masses of visible dark areas and cottony masses. As with other aphids, honeydew may be found on infected leaves, excreted by the aphids after feeding on the plant's sap.
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| - Eriosoma americanum (sv)
- Woolly elm aphid (en)
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| - The woolly elm aphid (Eriosoma americanum) is an aphid native to North America, found where Saskatoon (Amelanchier alnifolia) and American (Ulmus americana) elm trees are established. The aphid feeds on the Saskatoon elm in late spring through fall, and the American elm during both early spring and late fall. Symptoms of American elm infestations include curled elm leaves, later accompanied by masses of visible dark areas and cottony masses. As with other aphids, honeydew may be found on infected leaves, excreted by the aphids after feeding on the plant's sap. (en)
- Eriosoma americanum är en insektsart som först beskrevs av Riley, C.V. 1879. Eriosoma americanum ingår i släktet Eriosoma och familjen långrörsbladlöss. Inga underarter finns listade i Catalogue of Life. (sv)
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| - Young adult woolly elm aphids and eggs (en)
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| - Several young adult woolly elm aphids emerging from wool, with multiple undeveloped white round eggs present (en)
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| - The woolly elm aphid (Eriosoma americanum) is an aphid native to North America, found where Saskatoon (Amelanchier alnifolia) and American (Ulmus americana) elm trees are established. The aphid feeds on the Saskatoon elm in late spring through fall, and the American elm during both early spring and late fall. Symptoms of American elm infestations include curled elm leaves, later accompanied by masses of visible dark areas and cottony masses. As with other aphids, honeydew may be found on infected leaves, excreted by the aphids after feeding on the plant's sap. (en)
- Eriosoma americanum är en insektsart som först beskrevs av Riley, C.V. 1879. Eriosoma americanum ingår i släktet Eriosoma och familjen långrörsbladlöss. Inga underarter finns listade i Catalogue of Life. (sv)
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