Rosy apple aphid

Bioaggressor - (Dysaphis plantaginea) - Pests - Ashy apple aphid - Apple

Colony of apple aphids (Ephytia-INRAE)

Adult size of Dysaphis plantaginea : 2 to 3mm

Colour olive-green to violet-brown

Winged adults dark green to black with a shiny spot on the abdomen

1 generation every 3 weeks

Secondary host : plantain from mid-June to mid-July

Symptoms on apple trees

Damage to leaves and shoots : colonies causing leaf and twig curling and deformation

Leaf curling due to ash aphid (Ephytia-INRAE)

Twig deformation due to ash aphid (Ephytia-INRAE)

Damage to fruit : deformation of young fruit

Ashy aphid damage on fruit (CTIFL)

Période de présence :

J

F

M

A

M

J

A

S

O

N

D

Observe 100 shoots in the orchard and count the number of shoots affected by an aphid colony.

Control by crop protection agents : hoverflies, ladybirds, midges, lacewings, daylilies and Hymenoptera.

Varietal sensitivity

Low : presence of a few isolated individuals

Medium : between 0 and 5% of shoots occupied by a colony

High : more than 5% of shoots occupied by a colony

This article was written in partnership with <a href="https://www.agrifind.fr/alertes/pommier/pommier-puceron-cendre">Agrifind</a> and <a href="https://www.terresinovia.fr/">Terres Inovia</a>.