Chromaphis juglandicola
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Author(s): InfluentialPoints
Source: InfluentialPoints
Chromaphis juglandicola (Kaltenbach, 1843) - (small walnut aphid)
This aphid is found in Europe, parts of Africa and Asia as well as in temperate parts of the Americas. It is believed to be native to the Near East and attacks young walnut leaves, feeding on the upper surface of the leaves. Infestations can lead to the formation of sooty moulds, as well as to a reduction in yield, quality and the size of the nuts.
Overwintering eggs hatch in spring and the aphid passes through a number of asexual generations, with females giving birth to live nymphs. Males are produced in autumn and fertilized females then lay the overwintering eggs. The aphid has a length of 1½-2 mm. It is yellowish to pale brown, often with darker brown marks, especially on the abdomen.
| Vernacular names | |
|---|---|
| • Deutsch: | Kleine Walnusslaus |
| • English: | small walnut aphid |
| • Español: | pulgón del nogal |
| • Français: | petit puceron du noyer |
- Other images of Chromaphis juglandicola (InfluentialPoints Wikimedia - click to enlarge)
adult
nymph
tended by the ant Camponotus ligniperdus
