Classification

Aphidinae: Macrosiphini

Common name(s)

Green peach aphid, peach-potato aphid

Diagnosis

Adult apterae small to medium-sized, whitish green, pale yellow-green, grey-green, mid-green, pink, red or almost black; rather uniformly coloured, not shiny. Alatae have a black central patch on abdominal dorsum. Aphids collected on tobacco often pink or red. Antennae 0.62x as long as body.

Distribution

Cosmopolitan. All over India.

Host plant(s)

Asteraceae: Ageratum conyzoides Sieber ex Steud., Sonchus sp.; Brassicaceae: Beta vulgaris L., Brassica juncea (L.), Brassica oleracea L. var. capitata, Brassica campestris L., Brassica oleracea L. var. botrytis, Brassica oleracea L. var. gongyloides, Raphanus sativus L.; Crassulaceae: Bryophyllum pinnatum (Lam.) Oken; Capparidaceae: Gynandropsis pentaphylla (Linn.) DC; Solanaceae: Nicotiana tabacum L., Solanum melongena Wall., Solanum nigrum L., Solanum tuberosum Poepp.ex Walp.; Fabaceae: Pisum sativum L., Vicia faba L.; Rutaceae: Ruta graveolens L.

Large colonies found on early stage crops of cabbage, knolkhol and radish, very few and small colonies found on other plants.

Measurements

Aptera: Length of body 1.96, width 1.24; antennae 1.23, segments III: IV: V: VI 0.40: 0.30: 0.21: (0.11+0.35); u.r.s. 0.11; h.t.2 0.11; siphunculus 0.52; cauda 0.24.
Alata: Length of body 2.48, width 1.1; antennae 2.58, segments III: IV: V: VI 0.69: 0.57: 0.42: (0.19+0.59); u.r.s. 0.12; h.t.2 0.12; siphunculus 0.42; cauda 0.22.

Seasonal occurrence

All through the year, with heavy infestation during winter and early summer; September-March in and around Bangalore.

Natural enemies

Coleoptera: Coccinellidae: Brumoides suturalis (F.), Priscibrumus uropygialis (Mulsant), Adalia tetraspilota (Hope), Calvia punctata (Mulsant), Cheilomenes sexmaculata (F.), Coccinella transversalis F., C. undecimpunctata L., Harmonia dimidiata (F.), H. eucharis (Mulsant), H. octomaculata (F.), H. sedecimnotata (F.), Hippodamia variegata (Goeze), Micraspis allardi (Mulsant), Oenopia kirbyi Mulsant, O. sauzeti Mulsant, O. sexareata (Mulsant), Propylea japonica (Thunberg), P. luteopustulata (Mulsant), Scymnus (Pullus) latemaculatus Motschulsky, pyrocheilus Mulsant.

Hymenoptera: Aphelinidae: Aphelinus asychis (Walker), A. mali (Haldeman), A. albipodus Hayat & Fatima.

Braconidae: Aphidius ervi Haliday, A. colemani Viereck, Monoctonus ?longiradius Takada, Trioxys brevicornis (Haliday).

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	Habitus