Author(s):

Rohini BS, Suchithra Kumari MH and Rashmi S

Abstract: A study on species complex of aphids on medicinal and aromatic crops in selected taluks of Chikkamagaluru district was conducted during 2016-17. A total of 12 aphid species across seven genera, three tribes and two subfamilies of the superfamily Aphidoidea were recorded. Most of the aphid species studied belonged to the subfamily Aphidinae followed by subfamily Greenideinae. The subfamily Aphidinae was represented by two tribes, Aphidini and Macrosiphini constituting three (<em>Aphis</em>, <em>Hysteroneura</em> and <em>Rhopalosiphum</em>) and three genera (<em>Macrosiphum</em>, <em>Myzus</em>, <em>Hyperomyzus</em>, and <em>Sitobion</em>) each. One tribe and one genus were reported under the subfamily Greenideinae (Greenidini and Greenidea, respectively). The severity of per cent aphid infestation by <em>Aphis gossypii</em> (72.5%) and <em>Myzus persicae</em> (72.5%) was higher followed by <em>Aphis craccivora</em> (67.5%), <em>Aphis spiraecola</em> (57.5%), <em>Macrosiphum euphorbiae</em> (55.5%), <em>Hysteroneura setariae</em> (55%), <em>Sitobion avenae</em> (55%), <em>Aphis fabae</em> (52.5%), <em>Aphis (Toxoptera) aurantii</em> (42.5%), <em>Greenidea (Greenidea) ficicola</em> (42.5%), <em>Rhopalosiphum padi</em> (40%) and <em>Macrosiphum rosae</em> (40%).

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