Uroleucon cichorii (Koch, 1855) Aphis intybii (Koch, 1855) and Aphis fabae cirsiiacanthoidis Scopoli, 1763 colonies occurred on Cichorium intybus L., Cirsium arvense (L.) Scop. was colonised by Aphis fabae cirsiiacanthoidis. Artemisia vulgaris L. accommodated Macrosiphoniella artemisiae (Boyer de Fonscolombe, 1841). The annual Crepis setosa Haller was the host plant of Uroleucon cirsii (Linnaeus, 1758) and Uroleucon cichorii. The perennial Picris hieracioides L. also accommodated Uroleucon cirsii. Centaurea arenaria M. Bieb. ex Willd. and Centaurea stoebe L. subsp. micranthos (Gugler) Hayek accommodated Uroleucon jaceae (Linnaeus, 1758). Carduus acanthoides L. was colonized by Uroleucon aeneum (Hille Ris Lambers, 1939). Artemisia absinthium L. was the host of Macrosiphoniella absinthii (Linnaeus, 1758). Achillea millefolium L. was colonized by Macrosiphoniella millefolii (De Geer, 1773).
Survey of aphids on dicotyledonous herbaceous plants along the Hungarian highways on 33 sampling points revealed the presence of aphid infestation on Artemisia vulgaris L. in 4 locations. Macrosiphoniella artemisiae (Boyer de Fonscolombe, 1841) colonies were present on the youngest parts of the shoots each place. On one of the locations the gall forming Cryptosiphum artemisiae Buckton, 1789 was present. Gall containing shoots of the mugwort were collected to rear aphid nymphs to adult. On these shoots the overlooked Brachycaudus cardui Linnaeus, 1758 individuals developed into apterae. Artemisia absinthium L. was present on one location. This plant accommodated Macrosiphoniella absinthii (Linnaeus, 1758).