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Encyclop'APHID

Wahlgreniella nervata (Gillette, 1908)

Strawberry tree aphid

Wahlgreniella nervata : adulte aptère
Wahlgreniella nervata : adulte ailé
Wahlgreniella nervata : adulte ailé

Morphological characters

1.4-2.7 mm.
Pale green to yellowish
Apterous: antenna ringed at articulations, length same as body, cornicles long and slightly swollen on distal half, cauda long and broad.
Alate: antenna longer than body; cornicles long and slightly swollen on distal half, cauda long and broad, wing veins very dark.

See identification file

Life cycles

Anholocyclic in Europe. Heteroecious holocyclic in North America

Host plants

Rosa, Arbutus

Particular characteristics

Wahlgreniella nervata is an American species, introduced into Europe and reported for the first time in England in 1973 on roses. In North America, this species appears to be heteroecious with host alternation between rose bushes, the primary hosts and Ericaceae (Arbutus, Arctostaphylos, Pieris), the secondary hosts. The European populations are apparently anholocyclic on rose bushes.

Agronomic impact

Natural enemies

Identification file

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