Pemphigus bursarius

Pemphigus • Aphididae • Sternorrhyncha • Hemiptera • insects (plant pests) • pests-diseases-weeds

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Pemphigus bursarius on lettuce root (click on image to enlarge it)
Source: DLR RP - Hortipendium

Pemphigus bursarius (Linnaeus, 1758) - (lettuce root aphid)

The asexual stage of this species feeds roots of lettuce and chicory (secondary hosts) and can cause serious damage. The sexual stage produces galls on poplar trees (primary host).

Vernacular names
• Deutsch:	Salatwurzellaus
• English:	lettuce root aphid poplar petiolegall aphid
• Español:	pulgon de la raiz de la lechuga
• Français:	puceron lanigère des racines de laitue puceron des feuilles du peuplier puceron (des racines) maraichères

• Other images of Parasaissetia nigra (IPM Images and Open Media - click to enlarge)
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  gall

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  gall on Populus nigra