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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Encyclop'Aphid : l'encyclopédie des pucerons


Rhopalosiphum insertum (Walker, 1849)

Apple-grass aphid

Rhopalosiphum insertum : adulte aptère
Rhopalosiphum insertum : adulte ailé
blanc 192x128
blanc 192x128

Morphological characters

1.4-2 mm.
Apterous: yellowish green with darker longitudinal streaks, antennae short and dark at tip, cornicles short.
Alate: abdomen glossy green with dark marginal sclerites, antennae short, processus terminalis slightly curved; cornicles short, pigmented with a constriction at tip, cauda narrow and not strongly developed.

See identification file

Life cycles

Dioecious holocyclic .

Host plants

Primary hosts: Malus (apple), Pyrus (pear), Cotoneaster (hawthorn).
Secondary hosts: Poaceae: Festuca (fescue), Poa (annual meadow grass).

Particular characteristics

Agronomic impact

The presence of R. insertum, on its primary host, induces crinkling of leaves in spite of early appearance and formation of dense colonies. The worst damage is observed on young plants and nursery plants.
R. insertum is not considered to be harmful on cereals where it colonizes the roots. However, it is a vector of the barley yellow dwarf virus (BYDV).

Natural enemies



Identification file

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