Feeding

The aphids are phytophagous and have a piercing and sucking system: their mouthparts are adapted for piercing plant walls and penetrating their tissues as far as the phloem vessels and then taking up the sap containing its nutrients.

Ejection of a drop of honeydew

The aphids utilize their rostrum to pierce the plant then suck up the sap with their stylets. They then eject a sugary liquid, honeydew.
It is largely this feeding habit that explains their characteristic destructiveness.

Aphids pierce the plant with their rostrum.

The stylets reach deep into vessels of the phloem (drawing by N. Sauvion, 1995).

They eject honeydew onto the plant surface.

Modification date: 14 June 2024 | Publication date: 06 December 2010 | By: Evelyne Turpeau, Maurice Hullé, Bernard Chaubet

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