Illinoia azaleae (Mason, 1925)

azalea aphid

on Rhododendron etc.

parasite

Apterae 2-3 mm, rather shiny deep green. Immatures are pale greyish green. Siphunculi lightly swollen. On young stems and leaves.

hostplants

Ericaceae, oligophagous

Andromeda; Rhododendron indicum (“azalea”), Vaccinium.

Rarely on totally different plants, like Tulipa, Viola tricolor

synonyms

Masonaphis azaleae.

notes

A pest on azalea in greenhouses; originally from North America.

references

Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Blackman & Eastop (2017), Heie (1995a), Hellrigl (2004a), Łabanowski (0000a), Lampel & Meier (2007a), Müller & Horatschek (1980a).